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User Manual - Covera for Wi-Fi site survey and coverage simulation

1. USB and Bluetooth GPS receivers are also supported via virtual serial ports A virtual serial port is a software driver that will create a new serial port on your system bridging USB Bluetooth communication with the GPS receiver Covera Zone will see this virtual port just like a normal serial port Please check with your GPS manufacturer for the availability of a virtual serial port driver Port Index of the serial port on your Windows system COMx If set to AUTO DETECT then Covera Zone will try to detect on which port a GPS receiver is connected but trying to open every port and listen to NMEA compatible messages Baud Set the baud rate or speed for the port The default value is 4800 Bits The default value is 8 Parity Parity is a method of detecting some errors in transmission The default value is No Stop bit Stop bits are sent at the end of every byte transmitted in order to allow resynchronization The default value is 1 The status of the GPS as well as your current position are displayed in the GPS tool Survey options Scanning interval Defines how often Covera Zone will ask the wireless device to scan the airwaves Depending on the quality and responsiveness of your wireless device driver you may want to decrease this interval to improve the quality of the scan results used by Covera Zone The default value is 3 seconds Shutdown Zero Conf at start up This setting is only available under Windows XP Zero Conf is
2. E ent Pns Address IP address or fully qualified host name of the test host Enable Ping If checked the ping latency test will run for new survey points and Clear Run O the result will be recorded on the new point Clear the console window Run the ping test and output the result in the console winow The result is not recorded in any survey point Note Make sure that the firewall running on the test host will allow replies to ICMP pings The embedded ping client accepts the same options as the command line ping command Press on the Options button to open the Ping Options dialog 5 Ping Options Number of bytes to send Number of echo requests to send Timeout in seconds Time to live E Set IP don t fragment flag Number of bytes to send Number of bytes in the payload of every ICMP echo request packet Number of echo request to send Number of ICMP echo packets ping to send 61 User Interface Reference Timeout Replies taking longer than this timeout to get back from the test host are considered failed Time to live Time to live IP field decremented at each router hop Set IP don t fragment flag Setting this flag will ask routers along the way to avoid fragmenting the ping packets View mode tools Views are graphical representation of information contained in survey points This allows you to visualize the actual coverage of a wireless network Views are calculated by running a reg
3. General Options 4 User Interface Signal Graph Visible APs Gps receiver Survey Options View Options Sound Options General Options Project Auto save interval 10sec Y Save workspace in project file v Save view calculations in project file v Calculate views when opening a project file Maximum Memory Footprint Prompt when memory requirements exceed 64 Megabytes Localization Preferred Units Metric System y Software Updates v Check for updates at start up ox J _cmes ay General options Auto save interval Save workspace in project file Save view calculations in project file Calculate views when opening a project file Prompt when memory require ments exceeds Preferred Units Check for updates at start up Y our project data can be regularly saved in the background In cash of a crash you will have the opportunity to recover your data when re launching Covera Zone You can specify the interval in sec onds between auto save events If set to Never 0 sec project data will not be automatically saved If checked Covera Zone will save your workspace state dockable tools positions dock areas toolbars to the project file In this the case the workspace is restored when you open the project file The results of the view calculations can be saved in the project When the project is opened all the views are restored without any calculations This will increas
4. Google Earth ica ll a Bae to My Places lt Save Place az Cris Email Save My Places Share Post Print Ctrl F Server Log Out Create a new Covera Zone campaign with this image a Launch Covera Zone b Click on the Add Campaign c Inthe Add Campaign wizard press Browse d Select your file and press Open e In Covera Zone s calibration toolbar select the Georeferencing map tool 110 How to Untitled Project Campaign 1 File Edit Mode Tools Device Help Qo Re wr e C Hh We are now going to geocalibrate this map by placing two reference points with known coordinates on the Covera Zone map a In Google Earth Add a placemark and move it to a first reference point The coordinates of the placemark are shown in the Google Earth New dialog 111 How to iS Google Earth New Name Wii Latitude 464030 78 N Longitude 248 28 42 Style Color Description b Copy the latitude to the clipboard c In Covera Zone click on the same reference point position The Georeferencing map dialog will show up d Copy the clipboard into the Latitude field e Georeferencing map Coordinates for the pixel 162 168 Latitude 49 2418 93 N Longitude e Back in Google Earth copy the longitude f In Covera Zone copy the clipboard into the Longitude field
5. View Manager All APs heat map AP1 contour lines o X Type RSSI Sources Filter SSID myWireless Overlay Heat Map Parameters Easy regression RSSI Automatic Parameters Space parameter Office Resolution 11 20 A EEE DEE View API contour ines 27 Notice the green ribbon around the map area It means that the view must be calculated before 1t canbe displayed You can stop the calculations by pressing the Cancel button at the bottom right corner of the screen Yes Cancel the calculation in progess Yes to All A project may contain severak views This will Cancel all the calculation for all the views No Continue After the calculation is completed you should see a heat map view like this one 30 Getting started Pr A 5 Covera Zone F cygwin home hassan trunk samples outdoor cvr Outdoor survey N o File Edit Mode Tools Device Help 5 x DA NA em e C 8 HE S Y Survey Mode View Mode GS Report Mode All APs heat map 2 4i b All APs heat map AP1 contour lines AP1 contour lines AP1 contour lines Properties Type RSSI Sources Filter MAC Address 00 A0 F8 AC 61 9B Overlay O HeatMap Filled Contours Transparency E Show Contour Lines E Show Survey Points with value 4 Show APs with Alias 4 Show Color Scale Param
6. 192 168 17 2 Pinging 192 168 17 2 with 32 bytes of data Reply from 192 168 17 2 bytes 32 time ims TIL c4 Received 1 Lost 0 0 loss Minimum 2ms Maximum ms Average m8 Packets Sent 1 Seti Pra Select the HTTP tab Enter the full URL to your test file on the test server On Celtrio s test network it is http 192 168 17 2 test data 104 How to Address htto 192 168 17 2 135 data HTTP 192 168 17_2 135_ data 11 690 Mbit s 1426 99 Ebyte s 137356 bytes transferred in 34 ms Comer 4 Press on Run and observe the output in the console Address http 192 168 17 2 hij test data HITP 192 1608 17 2 hij test data 20 297 Mbit s 2477 67 Ebyte s 692638 bytes transferred in 273 ms If you make the same several times by pressing Run you will notice some random variability in the result A large test file will give more repetable measurements but entails a longer measurement Choosing the right size for your test file is a matter of compromise between these two factors Covera Zone will refuse files smaller than 64Kbyte We recommand using a file at least 1 MByte Because the HTTP test takes some time to complete it is not enabled by default when you make a new survey point on the map If you want to run a HTTP for each survey point just check the Enabled check box
7. 49 dBm 45 dBm 41 dBm User Interface Reference Value 71 dBm This is the number assigned to the contour line If you uncheck the checkbox then the line will not be drawn Value of the index for the line Can be edited in place by clicking on it Show or hide the value of the index defining a contour line Color of the contour line You can change this color by clicking on the color rectangle Color of the region between two contour lines filled region plot You can change this color by double clicking on the color rectangle Pseudo line entry for the minium of the regression available only after a calculation Never represented in the mapa area Pseudo line entry for the maximum of the regression available only after a calculation Never represented in the mapa area Countour lines can be drawn on top of a heat map representation or used to create a filled contour representation In this case the filled countour has its own color scale defined in the Fill column which is independatn from the heat map color scale 75 User Interface Reference Adding a contour line l Click on Add The New Contour Line dialog will show up 2 Inthe New Contour Line dialog enter the value for you new line es Mew Contour Line Ea Value for contour line 7 000 3 Click on the OK button to actually create the new line It is now listed with the others Generate Lines Value Line Fill Minimum 0 2 Mbit
8. Locate source Access Point Reset Location 9 Find Survey Points W Center Map Area on Position e You can also display the dialog by pressing Ctl F on the keyboard 4 Check Center map area on result 5 Now select the Mac address of the station you want to locate in the drop drop menu When opened you can resize the menu by gradding its bottom right corner E cay Find 00 14 BF 30 A5 84 00 16 38 57 2D F5 00 16 38 F5 19 D9 00 0F 66 18 53 BD 00 A40 F8 A8 F6 FA 44 14 39 71 14 80 dA 14 39 71 1A HB1 f 4A 14 39 711 1A 52 I 4A 14 39 71 1A8 B3 F 2 09 BC 2B E4 AD I C2 09 BC 2B E4 AE MA C2 09 BC 2B E4 AF MA 6 Click on the OK button Cisco Linksys CELTRIO Tecom Tecom Tecom Tecom 2 Cisco Linksys MANAGEMENT WESEA NONE MANUAL MANUAL 2 MANUAL 3 MANUAL 4 MANUAL 5 MANUAL 6 freephonie 7 Inthe map aera you will see a station icon If you double click on this icon you will see the Access Point Data 99 How to How to merge survey points from two different projects For large site surveys you can save time by working in parallel to gather survey data Two persons with two survey machines can explore different areas of the netwrok under test and merge their data in a single project afterwards This is easily done using copy paste 1 Open the two projects you want to merge in two different Covera Zone windows Let s call them project A and project B 2
9. Now enter the known Distance between the two points You can choose the length unit in the menu 21 Getting started 5 Inthe Scaling Map dialog press OK to validate the distance between your two reference points At the bottom of the map area the message on the red ribbon will change to Map is scaled OPP PPP ee ee A CC eC LEEA E n A oo K j i Map is sca e If you have made a mistake and want to specify different reference points just click on a new position and start again 6 Exit the calibration mode by pressing Done on the red ribbon or in the calibration tool bar Note Until the map is calibrated it is not possible to take survey points or use any functionality beyond calibration and basic map control operations 7 The map is now scaled Covera Zone will display a scale legend box overlay a Click with the right mouse button over the map area Make sure the Scale item is selected eN Zoom In a Zoom Out Eceitan Signal Copy Map rea Scale N Save Map rea as North Print Map Area Grid Bounding Box Labels APs b You should see a scale box at the bottom right corner of the map area If you want to move the scale box to a different position just grab it with the mouse to move it around the map area Controlling the map display Covera Zone offers many features to control what is displayed in the map area and how it is displayed For instance you can reveal details
10. Select the survey points you want to merge in project A 3 Inthe project B window simply paste the points Scaled projects should share the same background image This is not required for georeferenced cam paigns How to set up a GPS receiver Covera Zone supports GPS receivers exporting NMEA messages over a serial port The serial port can be a normal physical serial port or virtual serial port for USB and Bluetooth GPS receivers In this case you will have to install additional software provided with the GPS receiver Please refer to your GPS receiver documentation 100 How to The first step is to determine the port number COMx for your physical or virtual serial port Under Windows XP you can follow this procedure l In Windows XP select Start Control Panel 2 Click on the System icon 3 Select the Hardware tab 4 Press on the Device Manager button 5 In the tree list showing all the devices open the Ports COM amp LPT branch a Gestionnaire de p riph riques E Fichier Action Affichage e fl S eee l 3 INSPIRONGA00 cl Batteries ME Cartes graphiques 3 Cartes h te SD Ga EF Cartes r seau HeD Claviers i Contr leurs audio vid o et jeu fa a Contr leurs de bus USE ae Contr leurs de stockage Ga q Contr leurs h te de bus IEEE 1394 61 63 Contr leurs IDE ATA ATAPI Lecteurs de disque a 3 Lecteurs de DVD CD ROM a g Modems mM Moniteurs ELS Ordinateur q 4 P riph riques d i
11. htmi Rich Text Format 44 Report rtf Rich Text Format US Report rtf Google Earth Report kmil a Hide Folders a Provide a File name for the output report file for instance first_project_files b Select Html Report html in the Save as type drop down menu c Click on the Save button Wait while the report is being generated This m ay take some time since high resolution images of the views have to be generated Eventually the following dialog will pop up when the HTML file and the associated ressources have been written to the disk A folder named after the report filename in our example first_project_files is created It contains all the graphical resources of the HTML document 34 6 Getting started Double click on the first_report html file to open the HTML report in the Web brower configured on your system mesm 8 Report 1 dr Ely hy E Page G Tools y Reporta S 3 Campaign 1 Survey Points seal li merca notre Lotad 84 dBm 00 A0 F8 52 4B 2E E ireless 84 dBm 00 A0 F8 AB 0C F2 i MyWireless 65 dBm 00 A0 F8 A9 C4 A0 i E 71 dBm 00 A0 F8 AA 87 69 MyWireless 84 dBm 00 A0 F8 A7 9C 86 i MyWireless 00 A0 F8 53 51 1A 3 4 Mbit s MyWireless 53 dBm 00 A0 F8 52 4B 2E i 1 5 Mbit s _ MyWireless 84 dBm 00 A0 F8 AB 0C F2 Wireless 65 dBm 00 A0 F8 A9 C4 A0 ere Pla oe dBm 00 A0 F8 AA 87 69 MyWireless 85 dBm 00 A0 F8 52 3F F4 i 00 A0 F8 A7
12. 00 A0 F8 52 41 36 00 A40 F8 52 41 10 Parameters Easy regression RSSI Automatic Parameters Resolution 11 20 93 How to b Adjust the view parameters You can choose a predefined profile from the drop down list Sources Filter MAC Address 00 A0 F8 AA 85 5D Overlay Heat Map Parameters Easy regression RSSI Automatic Parameters Easy regression RSSI Office Space Easy regression RSSI Indoor Easy regression RSSI Urban Outdoor Easy regression RSSI Large Outdoor Outdoor Resolution 11 20 Calculate c Click on the Calculate button When the calculation is finished you should see a heat map representation of the coverage area 94 How to PPFD e Q 8 Y Survey Mode 2 View Mode GS Report Mode Ea 41 gt View1 view2 unes ds id a Ei LEN Type RSSI Sources Filter SSID MyWireless Overlay Heat Map Filled Contours treet tet ttt t tt tt tt 4 t t t t ttt Transparency Opacity Show Contour lines show APs with 9 Show Color Scale ad me na re Parameters Easy regression RSSI Automatic Param vy Resolution 11 20 y Calculate To determine the coverage area at 70 dBm we can create our own contour line that when filled will give us the desired area a Open the Contour Lines tool by using the Tools menu or by clicking on the Contour Lines link in the View Properties tool 95 How to
13. 11 specifications a b g or n Max rate maximum supported rate advertized by the station RSSI Instant value of the RSSI on beacons RSSI average Moving average of the instant RSSI RSSI connected Instant RSSI on the network link on network traffic Link Quality only avaiable under Windows Vista Mode topology mode of the station Adhoc or Infrastructure Vendor manufacturer of the station based on the first bytes of the MAC address declared with the IEEE Security Security mechanism based on Wi Fi Alliance terminology WEP WPA Per sonal WPA2 personal WPA Enterprise WPA2 enterprise Cipher Encryption cipher None CCMP TKIP Authentication Authentication and Key Management None Pre shared key 802 1X Supported rates list of all the supported rates advertized by this station Connected Network connection was established with this access point when the survey point was recorded HTTP Throughput throughtput measurement during a HTTP test optional Iperf TCP throughtput measurement during an TCP Iperf test optional Throughput Iperf UDP throughtput measurement during an UDP Iperf test optional Throughput Iperf Jitter jitter measurements in ms during an UDP Iperf test optional Access Point Data The Access Point Data dockable shows data recorded for an access point or station in adhoc mode identified by its MAC address To show this tool select Tools Access Point Data from the menu bar Alternatively
14. 9C 86 MyWireless 53 dBm 00 A0 F8 52 4B 2E 2 7 Mbit s e 84 dBm 00 A0 F8 AB 0C F2 E MyWireless 65 dBm 00 A0 F8 A9 C4 A0 d nas ip eee 00 AO F8 AA 87 69 MyWireless _00 AO F8 52 3F F4_ 00 AO0 F8 A7 9C 86 MyWireless 77 dBm 00 A0 F8 AB 0C F2 i MyWireless 74 dBm 00 40 F8 49 C4 40 E 2 3 Mbit s 512 761 6 O Yu Ml G3 C Users hassan Desktop Repot Fidhtml_reporthtmd 9 x C Users hassan Desktop Repot_Fix htmI_report html v Xx gt 27 ee Report Ear El a y Ed Page v G Tools a Outdoor survey AP1 contour lines Report 1 Ea Outdoor survey Sources 93 91 orga 00 A0 F8 A6 00 31 idas O Symbol 86 736 myWireless 00 A0 F8 AB 18 A5 myWireless 4 Symbol 454 99 myWireless 00 A0 F8 AC 61 9B myWireless Symbol 329 331 myWireless 00 A0 F8 A5 FF D6 myWireless 5 Symbol 270 700 myWireless 00 A0 F8 A9 DO A4 myWireless 1 Symbol 213 213 myWireless 00 A0 F8 AC 63 0E myWireless 2 Symbol 144 504 myWireless 00 A0 F8 A5 FF CA myWireless 6 Symbol 129 786 Wireless 00 20 F2 AC 60 64 z B Generated 2007 12 27 14 19 55 with Covera Zone 2 1 35 Getting started 7 To generate a Google Earth version on this report follow the same procedure but select Google Earth Report kml as the export format When you double click on the KML file you should see something like this Search Places Cl My Places Ll 3 Temporary Places Report 1 M amp Logo
15. COVERA ZONE a le Outdoor survey LL Le Path a 11 GS Survey Points E a 4S Access Points Db fel HP myWireless j E Wp my Wireless 5 O Of myiretess 0 O hp mywiretess E O Mp mywireless 1 E bye my Wireless 2 oO y a i El ld mWireless La 2 AP contour lines Outdoor s urvey OL ads Paj j i 1 T 7 o Image E 2007 The Geolnformatlon Group InterAtlas A E q p sr E l Googl or fas Pointer AF 5313300 N 2 14 23 56 Ey elev 58 m Streaming IIUI hp O Note If you want to move the kml and html file on your disk do not forget to also move the associated _files folder 36 Chapter 4 User Interface Reference Table of Contents OVEN EW A Stat re ac IA tar Oe wt genet IO since a tO Modes suda ds ee DOCK ATCA ui ts e N creat cabetn ace N heen ds ebat macetsal Nate N Dockable Tools usina O eas NEO UU A o o RN cere MI A A A E O no O a e EA A A ahaa ieee eas nica oie nie eee Mode MENU ii TA ete apa cata diel A E TOONS NENU lt a ES DEVICE menu a AI A alate AA AA A Help ment a A a a a Keyboard SHOLICULS sE A A ban Noes NMaprtoo LDA dao SUE FOOL DA a AA A AAA AA AA RS Camiparen Wiza A VIEW WIZARD A A A iw etnatto cen ete Lo nstky Survey mode TOOLS A A A A A Sisa tapar a a oido ee Campa e AA S O A O NISSAN la Wireless OMRECUON a ita Chase AR opte a id os A O A A O A ear EE Player pPertormancs anti dde Wie W mode 10018 tal AA A a tepeumen eaten Wiew Manager
16. Covera Zone 2 1 item and then select run as Admin istrator from the contextual menu The following activation wizard shows up when no valid license is found on the machine which is the case when the application is launched for the first time You may be asked to re activate after significant modifications to the hardware configuration of your system Introduction 2 Activation key Type the activation key in the appropriate field You can also copy and paste to this field S License Activation E License Activation step 1 3 You are about to activate the license for this product At the end of this procedure your activation data will be sent to our license server 1 Make sure this machine is connected to the Internet 2 Paste or type your activation key 3 then press Next Activation Key AGIGY PQYC4 CICS4 N2Z7P5 mro When the field is filled you can press on the Next button 3 Licensee identity Now fill the licensee identity form This should identify the person or organization to whom the license to use Covera Zone is granted SS license Activation Licensee identity step 2 3 Please enter the identity of the person or organization to whom this product license will be granted Company Organization ACME Corp I Last Name Doe FirstName John Organizational Unit Email Address john acme orgl lt a You can press the N
17. Searches Ji Public Folders A File name aerial_image png All Supported Images png b Select a bitmap image file on the disk Most bitmap image formats are supported PNG GIF JPG TIF BMP c After a bitmap file is selected press Open 18 Getting started We have set a name and a background map for this campaign To actually create the campaign and add it to the project just press Create If you do not want to create a campaign now you can cancel the operation by closing the wizard or pressing Cancel The selected image will now be displayed in the map area with a red ribbon around The red ribbon indicates that the map is not calibrated For more information see the section called Calibrating a map 20 Covera Zone Untitled Project UR 1 2 File Edit Mode Tools Device Help ax DH rA wor 9 C Mra AO Done Undo survey Mode E View Mode E Report Mode 12 Visible APs ZyDAS 7D1211 802 11 b g x SSID RSSI MAC Address WESEANONE 79dB 00 A0 F8 A8 F6 F Webreflexe 82 dB 00 14 BF 26 75 2 TORTUELAN 86dB 0OE E6 36 46 85 2 4 m m Wireless connection The interface is conn Ssid CELTRIO Link Speed 54Mbit s Alias Mac Address 00 14 BF 3C A5 84 Encryption WPA Personnal Signal RSSI p 61 dBm a N ne Uncalibrated Map v You can check that the campaign has been added to the current project Notice that a tabulation has been
18. Your wireless infrastructure may be rated at 11 Mbps or 54Mbps it is not the throughput that network users will experience These figures give the raw capacity at the wireless physical layer When a network appli cation sends traffic on the wireless network this traffic traverses the full protocol stack Physical MAC IP TCP or UDP Each layer introduces an overhead In the case of a web client if you measure the payload throughtput at the HTTP level you will find a much lower data rate that the advertized physical data rate We give here below the theoritical maximum HTTP throughput for a 802 11b network employing short preamble Physical data rate TCP throughput Efficiency Mbit s Mbit s With Covera Zone you can make several application level measurements We are going to explore the simplest throughput test HTTP To do that you will need a server running a HTTP daemon Covera Zone will use its embedded HTTP client to fetch a file from the test server throught the wireless network under test and calculate the observed HTTP throughtput from that To measure the performance on the wirelss segment of your network make sure the Test client is as close as possible to the HTTP test server in terms of network topology The wireless access points and the test server should be all connected to same Ethernet switch 103 How to From the menu select Tools IP Layer Performance The corresponding tool window will show up Address
19. Zone on line help Show version and legal information about Covera Zone Access li cense management Show check for updates dialog Open web browser on the on line feeback form Launch the on line help Underline the shortcut keys in the menu Calculate a view Switch to survey mode Switch to view mode Switch to report mode 44 User Interface Reference Map tool bar The map tool bar provides tools to control how the map is displayed in the map area 4 Selection tool Zoom tool Zoom Zoom Zoom factor 100 wyt Move Tool T Turn around Tool a Transparency Survey tool bar 50 PC 3 gt Allows you to select survey points or access points When this tool is active the pointer is changed into a magni fying glass the mouse wheel increase decrease the zoom factor the left mouse button increase the zoom factor increase the zoom factor decrease the zoom factor From this menu you can directly choose a zoom factor When set to 100 one pixel on the screen represents exactly one pixel on the map Move left down up down inside the map area Turn the map around the center of the map area If you use the mouse s wheel button the map will turn around the pointer position in the map area If you click the icon a sub menu allows to Reset the rotation angle When you click on entryis icon a slider will show up to allow you to set the level of transparency of the
20. abad eee ea Coe a oe eee eee VIEW LO PEE a Cotes eS gestae ec are are aaa le E de O ee e ad HeatMap Color scale is Contour MES A A A AA AA A A A ARA Report mode LOGINS sardina REDONDO ion ion EMPERO COMMMONATOOUS a A A A N Survey POING Data aia ACCESS PONT DI a a E id OPUS ti General OPUONS A A AAA AA A A A A E AA User mtertaceOpuoOnS ld dra Gps TE CSTV ST OPON 0 SAA dG SULVEY Options saves isin ind SOUNG OBLONG A A io 37 User Interface Reference Overview Covera Zone s workspace is divided in three main areas e At the top of the main window you will see the menu and tool bars Each tool bar can be individually moved or hidden A right click over a tool bar will show the associated contextual menu Menu bar File Edit Mode Tools Device Help alx Main tool Dr la E bar Ww b Ld A 2 C i 3 Mode bar The Dock area can hold dockable tools like the Wireless Connection window tool in the screenshot shown below Tools can be docked or undocked to and from the dock area just grab the tool with its title bar and move it into the target dock area while pressing the mouse Only the left dock area is visible by default but you can dock tools at the top bottom left right of the map area f ae y Covera Zone F cygwin home hassan trunk samples outdoor cvr Outdoor survey iS fo l File Edit Mode Tools Device Help x DH RIRe e CO 8 HE SA 9 Survey Mode rod View Mode E Report M
21. all the supported rates advertized by this station Age Time in seconds since the station was last seen Contextual menu When you click on a station with the right mouse button the contextual menu will propose several choices Show old APs Connect Send to Graph Set Alias for DE E6 36 46 85 2C Chase Connect Initiate a connection the selected acess point available only on Windows Vista Send to Graph The Signal Graph tool is configured to plot the selected access point signal Set Alias opens a dialog to specify a user defined alias for the access point MAC address Chase open the Chase AP tool Show old APs If checked all the access points detected in the session are listed Otherwise only the access points seen recently are listed Wireless Connection This tool shows information about the access point you are currently connected to Wireless connection The interface is connected to a network E Ssid CELTRIO Link Speed 54 Mbit s Alias Mac Address 00 14 8F 3C 45 34 Encryption WPA Personnal SSID Service Set Identifier of the current connection Link Speed Link speed of the current connection in Mbit s 54 Mac Address Alias Encryption Signal RSSI Chase AP User Interface Reference MAC address of the access point you are currently connected to Alias of the access point Mac Address if any Authentication and encryption used on the network you are current ly connected to WEP WPA Pe
22. and adjust the opacity of the filled contour using the transparency slider 97 How to File Edit Mode Tools Device EL Type RSSI A Sources Filter SSID MyWireless H Toon o Pu O ER A os a e Ml gt IP qe q o g Oni a Overlay a we Ad ae Show Survey Points with Show APs with no label 4 Show Color Scale Parameters Easy regression RSSI Automatic Parameters Resolution 11 20 Calculate Contour Lines Generate Lines How to locate stations on the map Covera Zone can show an icon on the map area for every known stations By default the station icon is displayed on the survey point where the signal from this station is the strongest You can manually move this icon if you kown the exact position the station 1 We need first to create a simple campaign with some dummy data a Make sure you are in Survey Mode by clickin on the tab bar b From the menu Mode gt Survey Mode gt Add Campagin c We do not need a background image for this dummy campaign In the Add Campagin dialog just click on the OK button d Inthe toolbar select the Add survey point tool e Now take a few survey points by clicking on the map area When you took this survey point you have probably recorded the signal of some stations 2 From the menu select Edit Find 3 Inthe Find dialog check the Find access point radio button 98 Find How to 00 14 BF 3C A5 84
23. by zooming in or moving around the map The following procedure will show you some of the useful tools available to control the map display 22 Getting started 1 To see more details on your map you can magnify it by increasing the zoom factor a Inthe tool bar select the Zoom tool a b Use the mouse wheel to increase the zoom factor If you have a mouse without a wheel click the left mouse button to increase the zoom factor 2 You can also move around the map a Inthe tool bar select the Move tool i o When you move the cursor over the map area it turns into an opened hand icon b Press the left mouse button over the area you want to grab The cursor turns into a closed hand C When you release the mouse the map will keep its new position inside the map area 23 Getting started 3 When the zoom factor is important it is easy to get lost in the magnified map In this case you can display a navigation map that shows an overview of the whole map We call it the navigation miniature a At the bottom right of the main window press on the navigation miniature icon The navigation miniature is visible as long as you keep pressing on the mouse b Tt b While pressing move the cursor over the navigation miniature Notice the black frame over the miniature it shows the portion of the whole map which is currently visible inside the map area The size of the black frame depen
24. can be modified from the View Properties tool 62 User Interface Reference View Properties Type The View Properties dockable tool exposes all the properties of an existing view The title bar contains the name of the view between brackets View Properties AP1 contour lines Type RSSI hs Source APs SSID myWireless Overlay Filled Contours Parameters Easy regression RSSI Automatic This tool is divided in several collapsible sections that you can open or close with the chevron icon on the right Each section title is followed by a summary between brackets To launch the calculations required to generate a view for instance after a property has been changed just press the Calculate button In the Type section you select the quantity that will be used for the regression View Properties AP1 contour lines Type RSSI average Sou RSSI connected Ping Ovi HTTP Throughput Iperf TCP Throughput Pal Iperf UDP Throughput Iperf Jitter RSSI Instant value of the RSSI It is recorded for every visible access point The NIC typically returns the average of the RSSI observed on 802 11 beacons packet RSSI average This a moving average of the instant RSSI It is recorded for every visible access point See the section called Signal Graph 88 to modify the size of the averaging window RSSI connected This is the RSSI of the access point you were associated with at the time of the measurement Ple
25. enter my first view in the Name field This name must be unique inside a given campaign E New View View name and type Please assign a name and select a type for this view Name My first view e g myAP Contou LX 1 6 Short description identifying the vien Type RSSI Received Signal Strength Indicator instant value Quantity you want to plot net gt Create Cancel 4 Quanties that may be used for the regression calculations are listed in the Type drop down list For instance select RSSI and press Next 9 New View Type RSSI Iperf Jitter View name and type Please assign a name and select a type for this view Name My first view e g myAP Contour Received Signal Strength Indicator instant value RSSI average Received Signal Strength Indicator moving average RSSI connected Received Signal Strength Indicator of the connected access point Ping ICMP ping latency Iperf Throughput e 1 6 Short description identifying the viev Press Next to move on to the next step A Warning next gt J create cancel If you select HTTP throughput as view type or any other type based on optional measure ments you must have acquired the corresponding measurements during the survey other wise you will obtain an empty view For more information see the section called IP layer performance 57 5 On this second s
26. entire map The survey tool bar provides useful tools when performing a wireless site survey gt Start Scanning HH Pause Scanning P Add Survey Points i Lock all Points ii Lock only GPS Points gt ma Resume scanning operation on the current wireless network interface Pause airwaves scanning on the current wireless network in terface When this tool is selected clicking over the map area will cre ate a new survey point Pressing on the lock icon will display the lock menu Lock all points to forbid moving any survey point Lock only GPS points to forbid moving survey points with a GPS position 45 User Interface Reference Campaign Wizard When you add a new campaign to a Covera Zone project the following wizard will show up on the screen New Campaign Campaign Properties Assign a name and a background map to this new campaign My first campagin descriptive name for this campaign e g first floor Background Map bitmap file to use as the campaign s background can be a floor plan an aerial photograph To add this new campaign to your project just dick on the Create button Otherwise you may specify some parameters on the Next screen lt Back Next gt Create Cancel You can replace the proposed Name for the campaign with a personalized one The Browse button allows you to pick up a bitmap file to use as the background Map for this campaign When you click on the Creat
27. g Press the OK button to validate the first reference point Repeat the previous operation for a second reference point The further from the first one the better the calibration a In Google Earth move the placemark to a second reference point 112 e f How to Copy the latitude to the clipboard In Covera Zone copy the clipboard into the Latitude field Back in Google Earth copy the longitude In Covera Zone copy the clipboard into the Longitude field Press the OK button to validate the second reference point 5 In Covera Zone click on the Done button You now have a geocalibrated campaign that you can use with a GPS receiver You may check that the geocalibration is correct by showing the North on the map 1 Click on the map area with the right mouse button 2 In the contextual menu choose Overlay North 113 Chapter 6 Frequently Asked Questions Table of Contents A A A A AE Gr tr Peat Ae Re ee eee aCe ENEA een eR II eee 114 Q I get an activation failure when I use my activation key Why cceceseeceeeee eens 114 Q I bought Covera Zone and activated the license for my laptop What is the procedure to transter i Oa new machine l cats 114 2 Network and wireless measurements cece cece cence cence ene eee e tence een eee en E ee EE en EEE EEE EE EE EEE EES 114 Q My Internet access is slow when I m running Covera Zone Why c0ceceeeeeeeeeees 114 Or Wha
28. layer measurement type such as ping latency or HTTP Iperf throughput will yield an empty view if such data was not acquired during the survey b Keep the default values View 1 and RSSI and click on Create 2 To display an access point icon on the map you are going to use the Find dialog a Select Edit Find or use the keyboard shortcut Ctrl F cey Find 00 A0 F3 52 48 2El 65 Find survey points Find access points Center map area on result b Check Find Access Point and select the access point in the drop down list c Check the Center map area on result box then press Find d Select Show Stations with Mac Address in the Overlay section of the View Properties tool click on the Overlay label to expand collapse the section 92 How to Sources Filter MAC Address 00 A0 F8 AA 85 5D Overlay 6 HeatMap Filled Contours Transparency Show Contour Lines Show APs with SS Show Color Scale Mac Address Resolution 11 20 Calculate We are now going to edit the view properties in order to calculate a the RSSI value for our chosen access point a Select the MAC address of the access point in the Source section of the the View Properties tool er i p rs SS Type R551 Sources Filter MAC Address O00 A0 FS 52 4B 2E 00 40 F3 49 C4 A0 00 A0 FS AA 87 69 00 A0 F8 24A4 85 5D 00 A40 F8 52 3F F4 00 40 F8 2k 98 86 00 A0 FA AB 0 F2 00 40 F8 53 51 12 Overlay Heat Map
29. the Windows XP service that manages your wireless connection The wireless device driver may face too much pressure when both Cov 89 Automatic MAC address alias Sound options User Interface Reference era Zone and Zero Conf ask to scan Shuting down Zero Conf will release this pressure and improve the quality of the scans reported by Covera Zone This mask is used to automatically create an alias for a newly de tected MAC address It may mix the follwing data ssid expands to the SSID of the access point identified by the MAC address channel expands to channel used by the station identified by the MAC addres vendor expands to name of the vendor Organizational Unique Identified found in the MAC address Covera Zone can play WAV sounds on various events Play sound on handover Play sound when joining a new network Play sound when adding a GPS point Chase AP If checked Covera Zone will play the sound defined by File when the wireless device is switching to a different Access Point on the same network same SSID different MAC If checked Covera Zone will play the sound defined by File when the wireless device is associating to a new SSID SSID changes from the current one If checked Covera Zone will play the sound defined by File when a new survey point is automatically added to the project only when the GPS automatic mode is enabled See the section called GPS 56 Defines the sound f
30. the variations observed in the regression surface but will modify the meaning of each color after a new calculation Heat Map Color Scale View 1 RSSI Color Scale 30 00 dBm Over the color scale band you will notice small triangles Each triangle is a symbol for a control point Control points are fixed a couple of value and color The other colors are linearly interpolated to and from the bounding control points Control points can be moved edited deleted and added as explained below 69 User Interface Reference To change the value associated with a control point 1 Select the control point you want to change by clicking on the triangle A double triangle will appear to show that the control point is actually selected Heat Map Color Scale View 1 El RSSI Color Scale we 30 00 dBm Ze Adjust to calculated values range The same color is now associated to a different value e You can also directly type a value in the input box and press Enter to validate 70 User Interface Reference To change the color associated with a control point 1 Double click on a control point triangle The color selection dialog will show up ee AAA q JE EC q O F P A A mmn Custom colors Hue 60 Red 255 00 0 si BEF Gems 25 LIL LAL IL LAL JL Val 255 5 Bue o 2 Define Cu
31. to 1s I get weird RSSI measurement Why Covera Zone will ask your wireless device for a new scan every x seconds When this interval is set below below 2s the driver may report strange RSSI measurements depending on the driver implementation In this case just increase the interval in the options Q Ihave a Wi Fi interface mon my machine but I get the message Cannot find a wireless device at launch What s the problem A Make sure your are running Covera Zone from an account with administrator privileges A flat signal is reported all over the survey area Why Certain versions of the driver for Broadcom 802 11 chipset will erroneously report a flat signal The solution is to upgrade your driver to the latest version For Dell systems upgrade your driver to 4 100 15 5 or higher Dell file R140747 Covera Zone does not record anything when my laptop goes into sleep mode Covera Zone and the necessary Windows services may no longer be running Disable the sleep mode Option Panel gt Power gt to be complete 3 Miscellaneous Q My firewall software raises an alert when I open the user guide Why A Personal firewall software may issue a warning about the connection Covera Zone makes to the help browser process using the machine s internal loop back interface This connection is not visible on any external interface and no data is sent to or received from the Internet How can I speed up the calculation of a view Use t
32. to measure maximum TCP bandwidth allowing the tuning of various parameters and UDP characteristics Iperf reports bandwidth delay jitter data gram loss 117 Index id View Contour Lines 74 A Definition 29 Access Point 9 Sri a Scale 69 Chase AP 55 anager Mode 62 Data 85 ae Find 50 venay Visibles APs 53 Views Properties tool 63 W C Wireless client 9 Calibration 20 Workspace 38 Campaign Definition 17 Manager 52 Composition Create 81 Manage 82 D Dock Area 38 E Equivalent Isotropically Radiated Power 10 Map Area 38 Modes 39 R Report Creation 33 Manager 79 Mode 79 RSSI 14 Sensitivity 13 S Signal Diffraction 12 Loss 10 Reflection 11 Scattering 12 Signal Graph Dockable tool 52 Sources View filter 64 Survey Point Data 84 Definition 24 118
33. 0 A0 FB AC 63 0E Mame myname w x 154 y 92 28 Getting started Deleting survey points Covera Zone allows you to delete a group of survey points in a single operation 1 Click on the Selection tool in the tool bar KA om e C e You can also select several survey points by pressing the Ctrl key while selecting individual points with the mouse 3 Press the Delete key A confirmation dialog will show up at Confirm Survey Points Delete es Delete these 3 Survey Points Alternatively you can also delete selected points from e the contextual Menu e the Edit menu 4 Click on Yes in the confirmation box Views Covera Zone allows you to visualize site survey data by creating one or more views Views are calculated by applying a regression algorithm to the survey points data After the calculations a heat map or a filled contour plot is displayed on top of the background map This allows you to visualize the actual coverage of a wireless network 29 Getting started Calculating a view To see what a view looks like you can open one of the sample files For instance open the outdoor cvr file located in the Samples folder Covera Zone will start calculating the view when you open this file 9 Covera Zone F cygwin home hassan trunk samples outdoor cvr Outdoor survey todos File Edit Mode Tools Device Help DANA e C 6 HL 9 A survey Mode ES View Mode Report Mode
34. 105 How to HITE 192 168 17_2 hij test_data 45 419 Mbit s 5544 30 Ebyte s 6292638 bytes transferred in 122 ms W Enable HT O Note e Make sure there is no throttling in your network e Make sure there is not firewall or port blocking to access the test server on port 80 e If you have several network interface on the test client make sure only the wirelss interface is activated Otherwise you may measure throughput on a different interface How to make Iperf measurements In a wireless network the following factors may cause much lower IP throughput than the advertised link speed e Protocol overhead e Retransmission of lost or corrupt packets at the TCP level or the 802 11 MAC level e collision avoidance in 802 1 IMAC may cause back off waiting time and retransmission perf is a free commmand line tool for measuring TCP and UDP throughput performance in a client server set up Covera Zone contains an embedded Iperf client to make measurements against a test Iperf server To run an Iperf test you will need e A Windows machine with a wireless connection to the wireless network under test and running Covera Zone e A test server Linux or Windows with a wired connection to the wireless network under test Ideally the server is plugged on the same Ethernet switch as the access points 106 How to We are now going to prepare the Iperf server for a TCP test that will simulate typical data application
35. 12 5 MBytes 10 5 Mbits sec The result in the Covera Zone Iperf client is 107 How to 192 168 17 2 Iperf c 192 168 17 2 p 5001 Client connecting to 152 168 17 2 TCP port 5001 ICP window size 8 00 EByte default 2024 local 192 168 17 102 port 49 61 connected with 192 168 17 2 port 5001 2024 0 0 10 0 sec 14 8 MBytes 12 4 Mbits sec E Enable Iperf TCP We can also use Iperf to generate UDP traffic that will simulate real time voice traffic 1 On the server side stop the server with Ctrl C and restart it with the following options bash iperf server port 5001 udp Server listening on UDP port 5001 Receiving 1470 byte datagrams UDP buffer size 107 KByte default 2 In Covera Zone at the client side click on the Options button 3 Inthe Options dialog lt lt Iperf UDP Options Port 5002 Interval Time To Transmit Buffer Length UDP bandwidth a Check the UDP radio button b Set the UDP Bandwith field to 50m for 5OMbit s We want to estimate the maximum throughput on the wireless network That s why we should set UDP Bandwidth greater than the maximum throughput expected on the network If this setting is too small Iperf will just confirm that the defined amount of UDP packet have gone through without problem without stressing the network c Click on the OK button 108 How to Make sure the server s firewall allows UDP traffic on port 5001 and pres
36. 8 45 FF CA myWireless 6 00 40 F5 49 D0 44 myWireless 1 00 40 F8 AC 63 0E O RS E LA myWireless 2 lt j Add campaign create a campaign with the Campaign Wizard x Delete remove the selected campaign and all its data from the project Access Points display the list of all known recorded in survey points from a campaign For every stations listed a contextual menu is available with a right click The Locate source action will display a station icon on the map area next to the survey point with the strongest RSSI Set Alias for OO A0 F8 45 FF D6 Find Source ME Remove 52 Visible APs User Interface Reference Visible APs 2 Intel R PRO Wireless 3945ABG Network Connection SSID MAC Address Type RSSI 0 MANAGEMENT 00 0F 66 14 53 BD G 4idBm This tool shows the list of all visible APs in the neighboorhood The name of the wireless device used to get this scan list is given between bracket in the title bar of the window The list is refreshed periodically according to a scanning interval defined in the options Each visible acces e the Map area s point in the list is represented with an icon that you can drag and drop to e the Signal Graph tool This icon also provides additional information about the listed access point Paa VRD Available data connection established to this access point signal of this access point is being plotted the Signal graph tools access point is being chas
37. A Select all survey points and stations on the map Edit Invert Selection Ctrl I Invert the selection of survey points Set a survey point ignore flag Ignored points are not used by the Edit gt Ignore point regression algorithm when calculating views 42 User Interface Reference Edit gt Update point Edit gt Find Ctrl F Mode menu Update the measurements for the active survey point represented with a blue dot Open the Find dialog to locate survey points or stations on the map The mode menu allows you to switch from one mode to the other and to select actions specific to a given mode C mode actions Mode gt Survey Mode Mode Add campaign Mode Delete campaign Mode gt Recalibrate Mode gt Set Background Image Mode gt Lock points gt Lock all points Mode gt Lock points gt Lock only GPS points Mode gt Circle GPS survey points T a View mode actions Switch to Survey Mode disabled if the application is already in Survey Mode Add a campaign to the current project Delete the current campaign Recalibrate the background map Change the background map None of the survey points can be moved None of the points acquired automatically with a GPS receiver can be moved Display a circle around GPS survey points Manual survey points will be represented normally Mode gt View Mode Switch to View Mode disabled if the application is already in Vie
38. Add Campaign in the map area of an empty project 2 The campaign wizard will show up You can set your own name for this new campaign instead of the default one proposed by the wizard For instance typeMy first campaign into the Name field New Campaign Campaign Properties Assign a name and a background map to this new campaign My first campagin descriptive name for this campaign e g first floor Background Map bitmap file to use as the campaign s background can be a floor plan an aerial photograph To add this new campaign to your project just cick on the Create button Otherwise you may specify some parameters on the Next screen lt Back Create Cancel This new name will only be recorded when the campaign is actually created You can modify it anytime before pressing the Create button 17 Getting started The background map is the main visual element of a campaign You should use an image of the area to survey with enough details to easily pin point locations This could be a floor plan for indoor surveys or an aerial photography for outdoor surveys a Click on the Browse button The file selection window will show up Open image GO hassan Documents maps Search P B Organize P Views T E New Folder Favorite Links pate taken Tags Size gt gt de trunk MI Desktop 5 Recent Places 3 Computer E Documents E Pictures Ne Music dy Recently Changed E
39. Contour Lines F4 Generate Lines Line Fill e A Delete b Select all the precalculated contour lines and delete them with the Delete button To select all the contour lines you can use one of the following methods e Click on the first contour line press and hold down the Shift key while you click the last contour line e Press and hold down the Ctrl key while you click all the contour lines e Drag the mouse over all the contour lines c Click on the Add button The New Contour Line dialog will show up es Mew Contour Line Value for contour line 72 000 d Enter the value 70 then click OK 96 How to Line 70 dB e Anewcontour line is added To disable filling the region where the RSSI is lower to 70 dBm we set the corresponding fill color the red color in our case to fully transparent Click the corresponding color button in the Fill column on the Contour lines tool Basic colors Tt To A A O Tt to histein to A mmm Custom colors MI _ ie SS ee Define Custom Colors gt gt Hue 11 Red 255 Sat 255 Green Val 255 Blue O0 Alpha channel o cancel Add to custom Colors Set Alpha channel value to 0 then click OK Check the Draw Contour Lines box and select Filled Contours in the Overlay section of the View Properties tool You can also choose to show or hide the survey points using the Show Survey Points box
40. Create a composition A composition is a superimposition of two or more views from the same campaign or from different campaigns of the same project Composition are useful to vizualize overlaping areas 81 User Interface Reference To add a composition to a report 1 In the bottom part of the Report Manager select the active report The name of the active report is displayed in bold 2 From the vertical toolbar click on Add composition A new composition named Composition 1 appears in the bottom part of the window 3 Select Composition 1 In the top part select a view and export it to the composition y 5 The tree in the bottom part now show the view as an element of Composition 1 If you want to control precisely the properties of a compostion you can use the Composition tool Composition Tool The Composition tool is used to define the properities of the composition such as the stacking order of the views that make up the composition their transparency level as well as other display options This tool is not visible by default to show it 1 Make sure you are operating in report mode by clicking on the on Report in the mode tab 2 Select Tools gt Composition from the menu bar To activate this tool you need to select a composition on the Report Manager otherwise it will appear as disabled Composition Composition 1 Outdoor survey All APs heat map Outdoor survey APL contour lines T
41. Mode S View Mode E Report Mode o O 8 ME 3 j j j j f f j f f j f f j j PAE 39 O q 2E Ei gt Sy SKY21_92 t MANAGEMENT 0P Livebox FE38 0P freephonie se CELTRIO 19 lt Hidden gt W _ lt Hidden gt mw E 7 in wigs ZyDAS ZD1211 8 El S RSSI 86 dB 61 dB 86 dB 84 dB 60 dB 84 dB 84 dB MAC C6 4F 6 _ 00 0F 6 00 16 C BA DA 5 00 14 B 8A DA 5 00 16 3 User Interface Reference To completly show hide a dock area use the handlers shown below Different possible configurations of the dock areas are shown below Signal Graph CELTRIO 00 14 BF 3C A5 84 EJ Wireless connection The interface Ed Ssid CELTRIO Link Speed 54 Mbit s Alias Mac Address 00 14 8F 3C A5 84 Encryption WPA Personnal Signal RSSI jesse 62 dBm 25 Visible APs ZyDAS ZD1211 802 11 b g Wire E SSID RSSI MAC Address yp WESEA NONE 75dB 00 A0 F8 A8 F6 FA N 19 Webreflexe 84dB 00 14 BF 26 75 34 W op NEUF_D1F4 85dB 00 17 33 53 D1 F5 W 2 NEUF_76DC 86dB 00 17 33 27 76 DD W op Neuf WiFi 85dB 00 17 33 53 D1 FC N Neuf WiFi 85dB 00 17 33 27 76 E4 N 4 MANAGEMENT 59 dB 4 m 00 0F 66 1A 53 BD N 7 j Tools in the bottom dock areas Covera Zone F cygwin home hassan trunk samples in
42. SE THE SOFTWARE AND YOU MAY RETURN THE UNUSED SOFTWARE TO THE VENDOR FROM WHICH YOU ACQUIRED IT WITHIN THIRTY 30 DAYS AND REQUEST A REFUND OF THE LICENSE FEE IF ANY ALREADY PAID UPON SHOWING PROOF OF PAYMENT YOU MEANS THE NATURAL I accept the terms in the License Agreement 5 If you want to install Covera Zone in a different place than the proposed folder you can specify it on this screen Press Next to continue Destination Folder Click Next to install to the default folder or click Browse to choose another Install Covera Zone 2 1 to C Program Files Celtrio Covera Zone 2 1 Introduction 6 On this screen you can choose to make a Typical installation or to select components for a Custom installation It is recommended to choose the Typical installation Press Next to continue Choose the setup type that best suits your needs Typical Installs the most common program features Recommended for most users Custom Allows users to choose which program features will be installed and where they will be installed Recommended for advanced users Complete All program features will be installed Requires the most disk space 7 This screen is your last chance to exit the installation procedure Press Install to start the actual installation Ready to install Covera Zone 2 1 Click Install to begin the installation Click Back to review or change any of your installation settings Cli
43. a Banca a Signal RSSI ees 61 dBm 3 Close and do not show next time 16 Getting started You can create a new empty project by clicking on the project icon g in the tool bar This will open a new project window Alternatively you can also create a new empty project from the menu bar File gt New project At this stage you have an empty project If a wireless device is detected on your machine you can see in formation about the wireless network you are connected to as well as the Visible APs in the neighborhood Adding a campaign to a project Before you can add measurements to your project you must create a campaign that will contain your measurements and a background map A campaign is a map of the area under test on top of which you will position wireless network measurements A campaign will contain measurement data associated with a position We call this assocation a survey point You can think of a campaign as a container for a back ground map and survey points A project can contain one or more campaigns For instance if you want to survey two different floors in the same building you could add two campaigns to your project with a different floor plan for each campaign To add a campaign to an empty project follow these steps 1 Make sure you are in survey mode by clicking the Survey Mode tab From the menu bar select Mode gt Survey Mode gt Add Campaign e You can also click on the
44. a campaign is the project When no campaign is defined nothing is printed campaign expands to my first campaign Defines how many recently opened projects will be remembered in the File gt Recent projects menu Clear the history of recently opened projects Set the size of the navigation miniature Default value 100 pixels Display the instant RSSI in the Signal Graph tool as green bars Display the moving average of the RSSI in the the Signal Graph tool as a yellow line Number of past measurements used to compute the moving aver age Show or hide the horizontal lines of the signal graph grid Show or hide the vertical lines of the signal graph grid The string displayed in the title bar of the Visible APs can be customized using keywords Window Title Gps receiver options adapter name of the current wireless device naps number of visible APs dur ing the last scan on the cur rent wireless device Covera Zone can get your position from a GPS receiver exporting NMEA messages over a serial port To be able to use the GPS receiver check the Enable GPS receiver box 88 User Interface Reference Options ollel General Options Gps receiver 4 User Interface Enable GPS Signal Graph Serial Port Settings Visible APs Port AUTO DETECT Survey Options Bits E m View Options Parity No v Sound Options Stop bit 4 y Default Settings ox J _cma ay
45. added below the map area with the name of your campagin You can also see a campaign has been added to project with the Campaign Manager tool In the menu bar select Tools Campaign Manager This will ensure that the Campaign Manager window is visible on the screen Outdoor survey Access Points The list of campaigns contained in the current project is displayed In our example there is only one My first campaign 19 Getting started Calibrating a map When you import a background map to a project Covera Zone does not know its scale This is why any background map must be calibrated before it can be used There is a red ribbon displayed all around the map area as long as the map 1s not calibrated yet lt Covera Zone Untitled Project Campaign 1 Loja File Edit Mode Tools Device Help X Xx CEMIS k Q me e C O FF F 4 Ale Done ik 9 Survey Mode S View Mode Is Report Mode la Signal Graph CELTRIO 00 14 BF 3C A5 84 ES 12 Visible APs ZyDAS 7D1211 802 11 b g Xx SSID RSSI MAC Address WESEA LNONE 79dB 00 A0 F8 A8 F 6 F Webreflexe 82dB 00 14 BF 26 75 2 TORTUELAN 86dB 0E E6 36 46 85 2 m Wireless connection The interface is conn Ssid CELTRIO Link Speed 54 Mbit s Alias Mac Address 00 14 8F 3C A5 84 Encryption WPA Personnal Signal RSSI p 61 dBm 4 gt Campaign 1 There are two different methods to calibrate a map Scaling The scal
46. an change these later in the Overlay section of the View Properties tool 48 User Interface Reference At this fourth step you define which elements to show on your map and how to show them Ey New View Overlay options Select which items to display in the view E Show Contour Lines After dosing this wizard you can use the Contour Lines tool to define their properties Show the Survey Points Label Survey Points with Show the Access Points le Poni wails Show the Color Scale You can change these values later in the Overlay section of the View Properties tool At this fith step you choose which regression algorithm to use Most users should keep the recom mended value which is the Easy Regression algorithm See the section called Advanced Parame ters 67 for more information about these two different algorithm Es New View Algorithm Specify the regression algorithm to use to calculate coverage Easy regression recommended This algorithm only requires a single space parameter Covera Zone can even automatically determine this single parameter from the survey point geometry see next step Legacy regression This is the regression algorithm introduced with Covera Zone 2 0 Several abstract parameters must be manually set to obtain optimum results This option is only provided for backward compatibility You can change this choice later in the Advanced dialog of the Parameters sect
47. ase note this value may be different from the instant RSSI as the NIC driver not only uses observations of 802 11 beacons but also data packets exchanged over the wireless network to compute this value The following types are associated the access point you were connected at the time the measurement be cause they are based on real network traffic being exchanged over the wireless link Since their acquisition take some time they are disabled by default when you add a new survey point See the section called IP layer performance 57 for more information on how to record these quantities Ping Latency observed during the ICMP ping test expressed in millisecondes See the section called Ping 60 for more information 63 User Interface Reference HTTP Throughput HTTP throughput observed during the HTTP test expressed in Mbit s Iperf TCP Throughput Throughput observed during an Iperf TCP test expressed in Mbit s Iperf UDP Throughput Throughput observed during an Iperf UDP test expressed in Mbit s Iperf Jitter Jitter observed during an UDP Iperf test expressed in milliseconds See the section called IP layer performancef 57 and the section called Iperf 58for more information Empty view Plotting a view of such a type will result in an empty graph if the corresponding data was not recorded in the survey points Source APs In the Source APs section you define which source acess points are taken into acco
48. brackets View AP 1 contour lines Type RSSI Source APs SSID my Wireless Overlay Filled Contours Parameters Easy regression RSSI Automatic Space parameter Office Resolution Outdoor Low resolution faster High resolution slower Profile Advanced Calculate 66 User Interface Reference Predefined profiles are proposed in the drop down menu for usual propagation environ ment situations You can also specify a user defined profile to adapt to your specific sit uation Space parameter This slider sets the space parameter In an office environment the space size paramter typically around 5m whereas in indoor environment it may be around 15m and around 50m for a suburban outdoor environment O What is the space parameter To make a prediction for a given position the regression algorithm uses the values recorded at survey points around this position The Space parameter 1s the radius of influence around a survey point Predictions within this radius use the value of the survey point Predictions outside the influence neighborhood gradually ignore the value The value of Space parameter is as a length The optimal value depends on the propagation envi ronment and should represent the typical freespace between obstacles in your environment The more irregular the environement the smaller the Space parameter A very irregular environment like an office space requires a sma
49. cate Create reports based on site survey data and generated views HTML RTF or KML What s new in Covera Zone 2 1 Some of the most important new features of Covera Zone 2 1 are listed below e Support for Windows Vista e Tab navigation for campaigns and views e Improved signal graph show both instant and averaged RSSI e Drag and drop of access point to the map e A new fast and easy to use regression algorithm e Source filter mechanism to select the access point that make up a view e Possibility to create cross campaign compositions e Improved report mode e and many other bug fixes and user interface enhancements Comparing Covera and Covera Zone The family of Covera branded products is composed of e Covera a freeware application aimed at wireless site survey data acquisition Introduction e Covera Zone an application that builds on top of Covera and allows you to visualize coverage zones by using sophisticated regression algorithm to calculate views and communicate these by generating professional looking reports Covera Covera Zone Data collection GPS HTTP Iperf measurements Calculate regression views Create reports License Price on line store System requirements Covera Zone has been designed to work with computers or tablet PCs with a Wi Fi interface 802 11 a b g and running one the following operating systems e Microsoft Windows XP SP2 x86 e Microsoft Windows XP SP3 x86 e M
50. ces Client e transmitted power when the client is transmitting e sensitivity for access point to client transmissions e antenna used e orientation of the client s antenna relative to the access point s antenna The performance of a wireless network will not only depend on the quality of the access points but also on the quality of the wireless clients A given access point may exhibit good performance when used with high quality wireless clients The exact same access point in the same environment may exhibit a lower performance when lower quality clients are used The higher the sensitivity and the antenna gain at the client the better For instance most USB client sticks have a poor antenna because the antenna must fit on the USB stick when compared to laptops with an embedded 802 11 interface usually mounted on larger surface behind the LCD screen Why Covera Zone As we have seen in the previous sections the performance of a wireless network depends on a number of factors some of which are difficult or costly to model properly such as the propagation environment This is the reason why verification or audit site surveys are necessary to validate that a newly installed wireless LAN performs as expected Covera Zone is such a post installation wireless site survey tool It will assist you in auditing the actual coverage and performance of the wireless network under test Covera Zone will allow you to make RSSI measurements from various
51. ck Cancel to exit the wizard Wait till the installation completes Installing Covera Zone 2 1 Please wait while the Setup Wizard installs Covera Zone 2 1 Introduction 8 When you see this last screen Covera Zone has been successfully installed on your machine 3 Covera Zone 2 1 Setup J a me C ove ro Completed the Covera Zone 2 1 Setup 20ne KZ Wizard Click the Finish button to exit the Setup Wizard Y Launch Covera Zone 2 1 V View README file You will be invited to activate your license when lauching Covera Zone for the first time as described in the next section License Activation Before using Covera Zone you must first activate your license You will have to go through the activation procedure only the first time you launch Covera Zone To complete this quick procedure you will need e a valid activation key You should have received this key along with the Covera Zone installer via e mail or other means It is a string of text similar to this one A4JIJGY PQYC4 CIJC54 N27P5 MIDPS e an Internet connection so that the registration wizard can submit your activation data to Celtrio s server e to launch Covera Zone with administrator privileges To activate the license for the machine running Covera Zone follow this procedure 1 Launch Covera Zone From the Windows Start menu Start gt All Programs gt Celtrio Covera Zone 2 1 Note On Windows Vista right click on the
52. ct Windows Open a new window and create an empty project Ctrl N File gt Open Ctrl O Open the file selection dialog to select an existing project file File gt Recent Projects Show the list of recently opened projects File gt Close project Close the current project without closing the window File gt Save Ctrl S Save the project to a file on the disk File gt Save As Save the project to a file on the disk under the filename you ve specified File gt Export Data Export raw data to various formats XML file CSV file Google Earth KML file Save a bitmap image of the map This bitmap can be larger than the File gt Save Map as Image ES map area visible on the screen File gt Page Setup Open the Page setup dialog to specify parameters before printing File gt Print Map Ctrl P Print the map using the parameters specified in Page Setup File gt Exit Alt F4 Close Covera Zone and exit Edit Menu Edit gt Cut Ctrl X Copy the selected elements to the application clip board and delete them from the current campaign Edit gt Copy Ctrl C Copy the selected elements to the application clip board Edit Paste Ctrl P Paste the elements in the application clip board points to the cur rent campaign Create a new campaign with the elements in the application clip Edit gt Paste as new campaign board map and points Edit gt Delete Del Delete the selected elements Edit gt Select All Ctrl
53. d How to make Iperf measurements 106 You can make both TCP or UDP Iperf measurements with Covera Zone Select the appriopriate tab in the IP Layer performance tool 58 User Interface Reference 1 Install Iperf on the test host You can donwload Windows and Linux version from the Iperf home page 2 Enter the address of the Iperf test host in the Address field 3 Press the Run button The result of the Iperf test is printed in the console window By default Covera Zone is set for a TCP test IP Layer Performance Iperf TCP Address 192 168 17 2 iperE c 192 166 17 2 p 5001 Client connecting to 192 168 17 2 TCP port 5001 TCP window size 8 00 EByte default 2024 local 192 168 17 102 port 49261 connected with 192 168 17 2 port 5001 2024 0 0 10 0 sec 14 8 MBytes 12 4 Mbits sec E Enable Iperf TCP Address IP address or fully qualified host name of the Iperf test server Enable Iperf If checked the Iperf test will run for new survey points and the result will be recorded on the new point Clear Clear the console window Run Run the Iperf test and output the result in the console winow The result is not recorded in any survey point Depending on the protocol used for an Iperf test the following data is recorded in survey points e For TCP tests TCP throughput is recorded e For UDP tests UDP throughput and jitter are recorded Iperf Options You can set several options of the Iperf cl
54. de Tools Device Help Boo SOM raem e C i MB 9 Ps Signal Graph CELTRIO 00 14 BF 3C A5 84 Papa ke tal i ee CELTRIO i a Fs 8 Visible APs ZyDAS 7D1211 802 11 b g SSID RSSI MAC Address lop MANAGEME 62dB 00 0E 66 14 53 BD Livebox FE38 86dB 00 16 CF A4 BE 34 t freephonie 85dB 82 DA 5C 52 AF 2F 6 CELTRIO 62dB 00 14 BF 3C A5 84 lt Hidden gt 83dB 00 16 38 F5 19 D9 W lt Hidden gt 85dB S8A DA 5C 52 AF 2c lp lt Hidden gt 85dB S8A DA 5C 52 AF 2D ae 7 a op lt Hidden gt GA DA 56 52 AF 2E Mac Address 00 14 8F 3C A5 84 Encryption WFA Personnal Signal RSSI pees 63 dBm 734 667 px 51 User Interface Reference Signal graph This tool shows the RSSI signal strength history of the station identified in the title bar The green graph represents the instant RSSI the yellow line represents the moving average of the instant value You can modify the averaging windows in the options By default the station you are currently connected to is plotted You can change this by dragging a station from the Visible APs tool and droping it into the Signal Graph tool The pace of the horizontal scrolling is defined by the scanning frequency which can also be set in the options Campaign manager This tool shows all the campaigns contained in the project a Outdoor survey 00 40 F5 AC 61 9E myWireless 00 40 F8 45 FP myWireless 5 00 A0 FS A6 00 31 myWireless 0 00 40 F
55. dialog accessible from the Help menu On line support You can obtain additional information and the latest version of this documentation from http www celtrio com support If you need further help about Covera Zone e send an e mail to support celtrio com e Registered customers will get priority support by submiting help request through their private account http www celtrio com support myaccount php Chapter 2 WLAN basics Table of Contents INCOWOCK ATC HCOE ld estela outs 9 Transmitter anid TE CENTENO 10 Radrated PONCE ni ls 10 Pati JOSS rrin A lena Madd mannahlaentes O OE 10 Elccr OL ODStAC IES lt ld ld an ee ana ae iis 1 RECEIVER SENSICIVINY gas seen Natateed twee ne e ead hare Meche nae N 13 Factors impactos SSL ia 14 WIV COET LONE ui ais 14 TAPS TOR SES sois 15 Network Architecture A Wireless Local Area Network WLAN is composed of one or several access point s and wireless clients such as Wi Fi enabled laptop computers tablet PCs PDAs or Wi Fi phones Access Points are usually connected to a wired Local Area Network LAN to allow communications between the wireless clients and the rest of the wired network We will refer to access point and wireless clients as 802 11 or Wi Fi devices Wi Fi devices use microwaves to communicate at the following frequencies e 2 4GHz for 802 11 b g n compatible equipments e 5GHz for 802 11 a and some 802 11n compatible equipments 802 11 a b g n technologies used low p
56. dios dl dl lo reac 86 Geneial ODUGNS aaa E A A A ida 87 Ustrimertace soplos a 88 GPS TECEIV El OPLIONS lr id ci 88 SUE OPUS arte cements ok nana ame et res 89 Sound OPLORS VE EE wake olan Meera ow 90 PHONO scr Serica A east easeaatameetanas 91 How to visualize the coverage Of an ACCESS point oooooocococcnconcnnonconcnnononnoncononnononnonnnnonos 91 How to locate stations on the map an ai diri 98 How to merge survey points from two different projects oooococcccocccconcnnoncnnoncnnonnononnos 100 How to setina GPS Tecc VEE geer a a a E E 100 How to measure HTTP throughput id 103 How to make Iperf measurements rios 106 How 10 SeOrererenCe a Tap ad A A a N 109 O Fregucnly Asked QuestiOns aia 114 GOSS in NS A ico 117 dee ld e ee A 118 Chapter 1 Introduction Table of Contents What is COVES ZONG at sida l Whats MEW Ia C Overa Zone 20 aee tl E OT l Compatine Coveta and COVera ZoNe arsar iie SAA NS a l SVETE CS A a a 2 Installime Cover Zone aia ii oras 3 License ACA sas 6 On HRE SUPPORT ERRE TAE AA 8 What is Covera Zone Covera Zone 1s a wireless LAN site survey application and coverage visualization software for Windows XP and Windows Vista The main features of Covera Zone are e Survey Collect signal data and many other measurements during site survey campaigns Optional GPS support for outdoor survey e Visualize Calculate views based on the survey data heat maps or contour lines e Communi
57. door cvr Campaign 1 Pn fon Ex File Edit Mode Tools Device Help 5 x F LY x t v X DA Rem e HC A HLG D survey Mode gP view mode lt 4 Report Mode Signal Graph CELTRIO 00 14 B El Wireless connection The interface E3 Chase AP EJ Ssid CELTRIO Chased Access Point tek Speed seat 00 0F 66 1A 53 BD MANAGEMEN y Alias Mac Address 00 14 8F 3C A5 84 Infos Encryption WEA Pose Chased Access Point MANAGEMENT Signal RSSI s 60 dim Rssi 62 dBm Mac Address 00 0F 66 1A 53 BD Vendor Cisco inksys Estimated distance 20 Meters x y amp Dock area at the right of the map area Dockable Tools Dock area above the map area Signal Graph CELTRIO 00 14 BF 3C A5 84 11 Visible APs ZyDAS ZD1211 802 11 b g Wi SSID RSSI MAC Address 19 Webreflexe 83dB 00 14 BF 26 75 34 w TORTUELAN 86dB OE E6 36 46 85 2C 66 NEUF_D1F4 86 dB 17 33 53 D1 F5 op NEUF_76DC 85 dB 17 27 76 DD Neuf WiFi 85 dB 17 53 D1 FC op Neuf WiFi 85 dB 17 27 76 E4 6 CELTRIO 60 dB 14 BF 3C A5 84 p Wireless connection The interface is connect x Ssid CELTRIO Link Speed 54Mbit s Alias Mac Address 00 14 BF 3C A5 84 Encryption WPA Personnal Signal RSSI ues choosing Tools gt Reset Workspace from the menu bar 40 You can reset the workspace at any time and get all the dockable tools back to their default positions by To dock undock a tool just grab i
58. ds on the zoom factor the higher the zoom factor the smaller the frame Additionnally when you move the black frame over the miniature notice that your position is modified accordingly in the main map area The size of the navigation miniature can be defined in the the section called User interface op tions 88 For more information see also the section called Map tool bar 45 Survey Points Survey points are a key concept in Covera Zone Think of a survey point or point as the association of the following elements e a position e measurements typically RSSI acquired while the client is standing at this position e meta information time name Survey Points are taken manually by clicking on a position on the map or automatically with a GPS receiv er that will provide the positionning data See the section called How to set up a GPS receiver 100 for more information Covera Zone uses survey point data to calculate coverage views 24 Getting started Adding a survey point Once you have created a campaign and calibrated a map you can start adding survey points to the current campaign 1 Select the Add Survey Points tool in the toolbar DAS 2 If you move the cursor over the map area it turns into a target symbol 3 Click on the map to add a survey point For each click Covera Zone records network measurements and associates the results to the position pinpointed on the map Every po
59. e button after selecting a bitmap file you will jump directly to the calibration You can click on Create without setting an image for the map In this case Covera Zone will choose a default scale You can modifiy this default scale in the second step of the wizard shown below E New Campaign Background Map Calibration No background map specified You are about to create a new campaign with no background map In this case you must directly set the scale by defining the equivalence between pixels and actual distances Scale El pixels for every Meter W Show Grid After setting a path to an image you can manually define the number of pixel per meters instead of relying on the calibration tools Check Directly set the scale and press Create The image will be precalibrated with this scale 46 User Interface Reference a New Campaign Background Map Calibration Select the map calibration method a Use the calibration tools after clicking on Create 0 Directly set the Scale 2 pixels for every Meter Only advanced users should directly set the scale Show Grid lt n con View Wizard When you add a new view to a project the following wizard will show up to help you define the parameters for your view You can press on the Create button anytime in the wizard to create your view Default values for the not yet personalized parameters will be used 1 In this first step you define two important view pro
60. e considered an outliar A lower factor will flatten the result when a higher factor will give an output with more details due to the important weight attribute to outliars Fitting factor This factor is used by the regression algorithm to deter mine how close the survey point value it should fit If you set it to high then the algorithm will not try to fit close the measured values and the result will be a flat surface Envelope around the This parameter can be used with both regression algorithms It defines heat map the size of the envelope in pixels around the border of the heat map 68 User Interface Reference Heat Map Color Scale The Heat Map Color Scale tool is used to define a color scale for the heat map representation Each heat map view has its own color scale This tool is not visible by default to show it 1 Make sure you are in view mode by clicking on View in the mode tab 2 Select Tools gt Heat Map Color Scale from the menu Heat Map Color Scale View 1 RSSI Color Scale 90 00 dBm 40 00 dBm she Fj Adjust boundaries after cal cule When you move the cursor over the color band the corresponding value is shown in the box below the color band If the Adjust boundaries after calculations box is checked the values of the boundaries of the color scale are automatically modified to fit the boundaries of the regression surface This will ensure that the color scale is always adapted to
61. e of the map is determined by providing the actual distance between two reference points This method typically used on floor plans Georeferencing The map is fully georeferenced by providing the absolute position latitude longi tude of two reference points This method is typically used for aerial photographs and is compulsory if you want to use a GPS receiver Each of these two methods is represented with an icon in the calibration tool bar This tool bar is visible only when the map is not yet calibrated or is being re calibrated AO Done Undo For the purpose of this tutorial we are going to use the simplest calibration method scaling You will need to know the distance between two reference points on your map for instance the length of a corridor If you don t have any reference distance you can use an approximate value since the map can be re calibrated later 1 Select the Scaling Map icon from the calibration tool bar This is the default calibration tool so it may be selected already 20 Getting started 2 On the map click on the position of the first reference point with the left mouse button A cross symbol will be displayed on this first reference position 3 Move the pointer to the second reference point while pressing the left mouse button This will draw a line between the two reference points 4 The Scaling Map dialog box will show up after you released the mouse over the second refrence point
62. e the size of the project file but will save the calculation time When a project file is opened Covera Zone automatically start cal culations to restore the views The whole uncompressed image of the background map must fit into memory This may cause your system to swap when very large images are imported Covera Zone will show a warning message 1f the required memory execeeds this limit If you have enough mem ory on your system you can safely ignore this message or increase this value which is set to 64 Mbytes by default Define whether the Metric system or English units should be used as default units for a new campagin If checked Covera Zone will contact the update server on the In ternet every time 1t launches You will be notified 1f a new version is available 87 User Interface Reference User interface options Main Window Title Maximum projects to remember Clear History Size of the Navigation Miniature Signal Graph Show RSSI Show RSSI moving average Moving average on the last Show horizontal lines Show vertical lines Visiable APs This allows you to customize what is shown in the main Window title bar You can use special keywords between curly brackets that will expand to the appropriate value appname name of the application Covera Zone file absolute path to the project file campaign Name of the campaign can represent any character s that will be printed only if there is
63. e wireless interface to Covera Zone Logarithmic unit for radio signal strength reported by your Wireless NIC Computer hardware designed to allow computers to communicate over a network stands for the National Marine Electronics Association NMEA 1083 Standard defines GPS data exchange over a serial line GPS stands for Global Positioning System A radio localization system formed from a constellation of 24 satellites Can optionally be used by Covera Zone for outdoor surveys Windows API for Network Interface Cards including wireless devices NDIS5 1 is supported in Covera Zone 2 1 A unique identifier for all the Wi Fi access points or NICs A code attached to all packets on a wireless network to identify each packet as part of that network Amount of power that would have to be emitted by an isotropic antenna that evenly distributes power in all directions to produce the peak power density ob served in the direction of maximum antenna gain Attenuation undergone by a RF wave in transit from a transmitter to a receiver Path loss may be due to many effects such as free space loss refraction diffrac tion reflection In communication networks throughput is the amount of digital data per time unit that is delivered to a certain terminal in a network from a network node or from one node to another for example via a communication link The throughput is usually measured in bit per second bit s or bps Iperf is a tool
64. easurements for the same position If the default behavior is not satisfactory you can manually tune the Fitting factor parameter in the view properties tool What are the different methods to calibrate a map Covera Zone offers two different calibration methods e Scaling with only a known distance as described in the section called Calibrating a map 20 This is typically used for scaling indoor floor plans e Georeferencing with two kwown points as described in the section called How to georeference a map 109 This method is typically used calibrate maps for outdoor GPS assisted campagins 116 Glossary Composition View Survey Point or point Station Source Access Point or source Old Access Points Received Signal Strength Indi cator RSSI dBm decibel NIC Network Interface Card or Network Interface Controller NMEA GPS Network Driver Interface Spec ification NDIS MAC address Service Set Identifier or SSID Equivalent Isotropically Radi ated Power or EIRP Path Loss Throughput Iperf Superimposition of two or more views that may be added to report A regression graph plotted over the background map Association of a position and network measurements acquired from this position To be defined Access point recorded from at least one survey point Access point once detected during airwaves scans but not seen again for a long time Radio signal strength reported by th
65. ed in the Chase AP tool access point is being chased and plotted represents an adhoc station A lot of data is available for each station but by default only a few is exposed Right click on the column header to display the list of all available data and choose what to display as new columns SSID Mac Address Alias Channel Type Max rate RSSI RSSI average Service Set Identifier of the address network name broadcasted by the access point MAC address of the station user defined MAC address alias radio channel number as per the 802 11 specification e to 14 for 2 4Ghz depending on countries e 34 to 161 for 5Ghz depending on countries type of network based on 802 11 specifications a b g or n maximum supported rate advertized by the station Instant value of the RSSI on beacons Moving average of the instant RSSI 53 User Interface Reference RSSI connected Instant RSSI on the network link on network traffic Link Quality only avaiable under Windows Vista Mode topology mode of the station Adhoc or Infrastructure Vendor manufacturer of the station based on the first bytes of the MAC address declared with the IEEE Security Security mechanism based on Wi Fi Alliance terminology WEP WPA Per sonal WPA2 personal WPA Enterprise WPA2 enterprise Cipher Encryption cipher None CCMP TKIP Authentication Authentication and Key Management None Pre shared key 802 1X Supported rates list of
66. eoreferenced views as Google Earth layers You can download Google Earth from http earth google com To generate a report from one of the sample files provided follow this procedure l Open outdoor cvr a Click on Open icon in the tool bar b Inthe dialog box pick up a project file from the installation folder for instance C Program Files Celtrio Covera Zone 2 1 outdoor cvr and press Open c When the file opens Covera Zone will automatically start calculating the views Wait till it is completed 2 After the calculation is completed switch to report mode by clicking on the Report mode tab In the Report Manager tool you can see that this project already contains a report named Report 1 Survey Points Sources All APs heat map Apl contour lines Report 1 Campaign 1 Survey Points Campaign 1 Sources Campaign 1 All APs heat map 4 Composition 1 Campaign 1 All APs heat map Campaign 1 Apl contour lines 33 Getting started Select Report 1 and click on the Generate button The Export dialog box will show up Documents Covera Reports 4 1 Views fe New Folder O Wa cu rl m 4 TTT TTT Date modified Mame Favorite Links de trunk This folder is empty ME Desktop Recent Places Ea jE Computer Documents m More Folders A YT Ti File name Save as type Dynam ML Repor HTML Report html Dynamic HTML Report
67. eters Easy regression RSSI Automatic Paramet v Resolution 11 20 iv When a project contains several views you can decide which view to display with the tab bar just above the map area In the dock area you will see a tool called View Properties With this tool you can edit all the properties of the current view View properties are sorted into four sections In the Source APs section you define a filter to which acess point s is are selected to make up this view In this example only the access points broadcasting a SSID set to myWireless are considered A regression is calculated for each of these access points then the maximum value out of these individual regressions 1s kept as the final result for every pixel on the map A view can also represent a single acess point when a simple condition on a Mac Address is defined in the Source APs filter In this case a single regression is calculated Adding a view A project contain campaigns each campaign can contain one or more views To add a new view to the current campaign follow this procedure l Make sure your are operating in view mode by clicking on the View mode selection tab above the map area 2 Inthe View Manager click on the Add View incon You can also launch the wizard from the menu bar Mode gt Add View 31 Getting started 3 The first step of the wizard shows up In this dialog you can set a name for the view For instance
68. etween two GPS position fixes that will trigger a survey point acquisition The unit can be specified in the drop down menu 56 User Interface Reference Acquire a survey point with the current actually last known GPS aaa Point now oe position If the map is georeferenced two circles centered on the position reported by the GPS receiver are displayed on the map e IDO S RN a You can get more information on geocalibration in the the section called How to georeference a map 109 IP layer performance HTTP Beyond layer 2 RSSI measurements Covera Zone can also make IP layer performance measurements when you add a new survey point on the map Four different measurement methods are available e HTTP throughput e Latency of ICMP pings e TCP throughput with perf e UDP throughput with Iperf To acquire these measurements you will need a test network with a HTTP server and or perf server For more information to set up a test network have a look at the section called How to measure HTTP throughput 103 Covera Zone embeds a HTTP client to measure HTTP throughput It will request a test file from a test HTTP server The amount of data transfered divided by the time to complete the transfer provides an estimation of the HTTP throughput 1 Enter the complete URL of the test file on the test server in the Address field 2 Press the Run button The result of the HTTP request is printed in the console
69. ext button only after the two mandatory fields marked in bold are filled 4 Licensee address In this third and last step provide the postal address of the licensee The wizard will try to automat ically detect your country from your operating system Ey License Activation Es Licensee Address step 3 3 1 Provide postal address 2 then hit Submit Internet connection required Zip Code City Country UNITED STATES v State Introduction When you are ready to continue press Submit The activation wizard will send the activation data to Celtrio s server O Note The machine being activated must be able to send outgoing data on port 80 and receive the associated response e If you have a personal firewall running on your machine make sure 1t will allow this traffic e If you are accessing the Internet through a corporate network make sure that any firewall or proxy on the way will allow this traffic 5 Activation status This last screen shows the response from the activation server In case of an activation failure have a look at the activation FAQ 114 Y License Activation The license was successfully activated lt Back Submit Close If a direct connection to Celtrio s license server cannot be established alternative activation methods via web browser or e mail are proposed Once the activation has been completed you can review the license data from the About
70. ffracted or scattered by obstacles Eventually the transmission reaches the receiver attenuated by the combination of all these effects When the transmitted signal is striking a surface it will either be absorbed reflected or be a combination of both depending on the obstacles and signal properties Obstacles properties are the surfaces geome try texture and material composition Signal properties are the arriving incident angle orientation and wavelength Incoming Signal Partial Thru Signal Reflected Signal A diffracted wave front is formed when the transmitted signal is obstructed by sharp edges in the prop agation path Secondary waves are formed behind the obstructing body even though there is no line of sight Indoor environments contain many such edges and openings 11 WLAN basics DIFFRACTED SIGNAL INCOMING SIGNAL If there are many objects in the signal path and the objects are small relative to the signal wavelength then the propagated wavefront will break apart into many directions The resultant signal will scatter in all directions adding to the constructive and destructive interference of the signal SCATTERED WAVEFRONTS INCIDENT WAVEFRONT In indoor environments the wave front radiated from the transmitter antenna will experience many different transformations and different reflection paths as shown in the picture below At the receiver antenna the resulting signal will be the sum of propagatio
71. free dBm Mbps space range space range meter feet Given the above client sensitivity specification we make the following assumptions to calculate the the oretical range of an access point e the access point transmits at EIRP 100 mW 20 dBm e free space loss propagation i e no obstacles at all along the way e 10 dB margin in the link budget As the client moves away from the access point the signal decreases an the wireless client access point will automatically switch to a lower but more robust link speed The calculated ranges may seem very optimistic when compared it to real world ranges The reason is that in real world deployments obstacles do exist and even a few of them will severely impact the range 13 WLAN basics Factors impacting RSSI As we have seen in the previous sections different propagation effects and equipment characteristics will impact the performance of a wireless LAN hence the size and shape of the coverage area We can group these parameters in three categories Access Point e transmitted power e receive sensitivity for client to access point transmissions e antenna used plus cable connector losses if external antennas are used Environment e Physical obstacles to the radio wave propagation e Distance between the transmitter and the receiver e Interferences from other access points clients on your own network or from neigh boring networks e Radio interferences from non 802 11 sour
72. he Easy Regression algorithm instead of the slower Legacy regression If you really wan to use Legacy Regression decrease the regularization factor With both regression algorithms you can also improve the calculation time by decreasing the Resolution Decreasing the resolution will reduce the quality of the countour lines but should be OK for heat maps What is the maximum number of survey points in a project The number of survey points Covera Zone can handle will depend on the configuration of your machine For a typical configuration you can handle thousands of points However opening and saving a project will take more time in this case If a given source AP is recorded in all these points the view calculation for this source will be important Q Why are the RSSI values shown in the bottom left different from the measurements 115 Frequently Asked Questions The value that you see in the bottom left of the screen is the calculated value obtained as a result of the regression The value that you see as a label below a survey point is what you ve recorded for this point These two values are different because the regression algorithm does not naively fit to survey point values to account for noise and possible outliers in the measurements The interpolated value for any given position is calculated from all the measurements around This produces a smoothing effect and explains why the interpolated value is usually lower than the m
73. hical presentation purposes Four different output formats are sup ported Simple HTML static HTML output views and compositions are exported as PNG images Interactive HTML dynamic HTML views and compositions are exported as PNG images KML for use in Google Earth only for geocalibrated campaigns Rich Text Format RTF for use in text processing software such as Microsoft Word If you just want to export raw data in XML or CSV format without the graphical views select File gt Export Data from the menu bar Report Manager The Report Manager tool is used to select the elements to include in a report The available report ele ments are e views defined in the project e composition of views e the list of survey points and their measurements recorded in a campagin 79 User Interface Reference e the list of access points recorded in a campaign This Report Manager tool is divided in two parts e the top part shows all the campaigns and views of the project e the bottom part shows the list of reports and their contents exported elements tas Campaign 1 Campaign 1 Survey Points Survey Points Sources Sources All APs heat map All APs heat map Apl contour lines C Apl contour lines Report 1 Campaign 1 Survey Points Campaign 1 Sources Campaign 1 All APs heat map Export add an element selected in the top part to the active report in bold in the bottom part Add report An empty report is auto
74. hine you ve reached the allowed maximum of different machines for this key If you want to transfer the license from machine A to machine B Uninstall Covera Zone from machine A or unregister the license on machine A before activating again on machine B If your failure case is not listed here please contact the support I bought Covera Zone and activated the license for my laptop What is the procedure to transfer it to anew machine Uninstall Covera Zone During this process the wizard will contact our license server and unregister your machine After that operation you can install and activate Covera Zone with the same activation key on a new machine 2 Network and wireless measurements Q My Internet access is slow when I m running Covera Zone Why 114 Frequently Asked Questions A If your machine is connected to the Internet via the wireless interface you will notice that the Internet throughput is lower when Covera Zone is running This is because Covera Zone frequently scans the airwaves leaving less time for actual traffic to go through the wireless link If you shutdown Covera Zone or if you decrease the scanning frequency the situation will improve What does RSSI mean RSSI means Received Signal Strength Indicator It is a measurement of the signal strength acquired by the 802 11 device in the machine running Covera Zone See also the section called Path loss 10 After I ve set the scanning interval
75. icrosoft Windows Vista x86 and x64 e Microsoft Windows Vista SP1 x86 and x64 Minimum configuration e Ghz processor e 256 MByte of available RAM e 65536 color video card 1024x768 e 80 MByte of free disk space Recommended configuration e 2 Ghz processor e 512 MByte of available RAM e True Color Video Card 24 or 32 bits 16 8 M colors 1280x1024 e 150 MByte of disk space For GPS assisted site surveys you can use a NMEA 0183 compatible GPS receiver with a serial port For USB and Bluetooth GPS receivers without a physical serial port you may use virtual serial port software drivers supplied by the GPS reciver manufacturer O Note Some Wi Fi interface drivers may be detected as Bad Drivers on your system In this case you will be invited to upgrade to the latest drivers when launching Covera Zone 2 1 This will ensure that Covera Zone works as expected and offers the best performance Introduction Installing Covera Zone Once you have obtained the installer file follow this procedure to install the software on your system 1 Double click on the installer file Setup_Covera_Zone_2 1 exe Setup_Covera_Zone 2 1 Note If you are installing Covera Zone on a Windows XP machine make sure you are using an account with Administrator privileges 2 Under Windows Vista and depending on the machine s security settings you may see the following additional dialogs Do you want to run this file La Mame C Use
76. ient in both TCP and UDP mode To modify these press the Options button 59 Ping User Interface Reference ay Iperf TCP Options Port 5001 Interval Time To Transmit Buffer Length Window Size Maximum Segment Size ox caa Port Interval Time to transmit Buffer length Maximum segment size Window size UDP bandwidth lt 9 Iperf UDP Options Port 5002 Interval Time To Transmit Buffer Length UDP bandwidth o J cms Port number Default is 5001 Number of seconds between periodic bandwidth reports Time in seconds to transmit for default 10 secs Length of buffer default 8 KByte Set TCP maximum segment size MTU 40 bytes TCP window size socket buffer size bandwidth to send at in bits sec e g 54M for 54 Mbit s Recom mended value above the expected throughput Covera Zone can make network latency estimation by measuring ICMP ping packet round trip time from Covera Zone to a test host ideally just behind the wireless network 1 Enter the address of the test host in the Address field 2 Press the Run button The result of the ping request is printed in the console window 60 User Interface Reference Address www google com Ping www google com Pinging www l gqoogle com 209 85 135 103 with 32 bytes of data Reply from 209 85 135 103 bytes 32 time 46ms TIL 244 Packets Sent 1 Received 1 Lost O 0 loss Minimum 46ma Maximum 46ms Average 46ms
77. ile played when an access point is being chased See the section called Chase AP 55 90 Chapter 5 How to Table of Contents How to visualize the coverage Of an ACCESS point 20 ccc ce eee cece cence ee ee ee ences ee ene eaeeseeeaeneeas 91 How to docate stations on the Map bsccesssdcicewesdoecetieicineatsctunetencakanredeeiesunls Eia 98 How to merge survey points from two different projects ocoooccccccconcnnoncnnoncnnonnoncnnoncnncnnnnonos 100 How toset up a GPS TeCCIVel sonra E 100 How to measure HTTP throughput 2 0 0 0 cece cece ee cence ence eee ee eee ee eee ee eee eases ea eneeaeeeeneeas 103 How to make Iperf MeCasurenicmtS sis 106 How to georelerence a Map rr dde 109 How to visualize the coverage of an access point You can easily create a view to determine the coverage area at 70 dBm of an existing access point We suppose that you already have a campaign with several survey points If it is not the case you can use one of the sample projet files stored in Samples subfolder in the Covera Zone installation folder 1 First switch to View Mode and create a RSSI view using the View Manager Add View a Click on the Add oA button The Add View dialog will show up 91 How to View name and type Please assign a name and select a type for this view Name E Short description identifying the view e g myAP Contour 1ype Quantity you want to plot Please note that selecting an IP
78. ing antennas The ratio between the power at the receiving end Pr to the power at the transmitting ends Pt is 10 WLAN basics l G al a D i A In this formula power are expressed with Watts However radio engineers prefer to use a different unit called decibel to manipulate power levels and antenna gain Decibels noted dBm are defined with the following formula m ro P P dB 10 log aBn of ImW On this logarithmic scale 1mW is equivalent to 0dBm When the power in mW is divided by a factor of 10 then the decibel equivalent decreases by one unit Using this logarithmic scale the path loss formula shows that the signal strength in dBm decreases with the logarithm of the distance between both ends of the communication P dB P dB G dB m G dB 20 log A Effect of obstacles We have seen that microwaves used by Wireless LANs propagate along straight lines from the transmitter to the receiver This is the ideal case in real environments air and distance are not the only obstacles encountered by WLAN transmissions Typical obstacles such as windows doors walls desks and even people will significantly attenuate WLAN transmission signal but it can still be strong enough to maintain a link over tenths of meters with only a near line of sight or even without line of sight at all depending on the environment This is due to the properties of radio waves that can be reflected di
79. ins Suver POMS pais 29 VO CD 29 Calculatins a VIEW A id 30 Addo MEW rot ri dd ati 31 Genera TEDORS aaa incl 33 A User rc AAA ieee A I enbtrten ena iacieenents 37 OVEN TOWS A E AI AA A A 38 MOdES acota ia A A TE 39 DOC Artea aos 39 Dockable Tools traida dis aE tatarlaes ty caanteeeniaweed islas 40 MIP ATCA A A ARA AAA 41 A rete a eaa tein iat coteet hree teats tase E cers ta teie Masiaiertenents 42 A 42 PGi MCI tl tits laa esla 42 Mode Meat das 43 TOO MEU arta ta a ica att Aa 44 DEVICE En io 44 A O AN 44 Keyboard SHORICUIS as a A ES aa 44 Map toor Dar serra ties tit a a da aiii alas ida 45 UOVO L Dal das a o ese l acid 45 Camparet Wizard a tacos e E E A E AESA 46 1V Covera Zone 2 1 View WZA a A A AA id elas ene 4 PdO A wae E aces e neon une Louie Raa sean lee Manan eeuNume EE O 50 SUELE Y MOJE LOGINS A cee ok Gata 51 Siena Ora pi sirios 52 Campa Mana En ai AE 52 SO APE a E E E ET 53 Wareless CONNCCHON iS AN A 54 E e PO E o ihc heal aan ene ice cadena tient 55 GPS di aia 56 FP Jay er perno mane E tcs 57 VIEW MOJE TOOLS AAN EAN wees ede EN 62 NEW NNAS C acia 62 VIEW PIOPCUUICS salud io 63 Heat Map Color SCale aia obio 69 COMU LANE S A A is 74 REPO Mode LOOIS nit ca 79 Report Mander oina e ee R N E 79 COMPOS O ts o bi lisas 81 COMMON ODISEA ATA AS 83 Survey FONE Data varia dine A 84 Access Pont Data siyeni Sadie readied av eadibierinichcdemessbnd aie endssierishiaeweses 85 OPTIONS ad ci dd e eee
80. int is automatically labeled with a unique number Content of a Survey Point To view the data recorded for a survey point just double click on the point The Survey Point Data tool appears on the screen You can resize it so that all the columns and lines fit the window Survey Point Data 28 SSID 5 MAC Address Type myWireless 00 A0 FE8 A6 00 31 myWireless 00 A0 F8 AC 63 0E myWireless 00 A0 FE AC 61 9B myWireless 00 A0 FE8 A5 FF CA myWireless 00 A0 FA A5 FF D6 Mame 28 49 5330 10 N 2 1415 89 E Last Update 22 02 2005 17 08 32 Name Covera Zone automatically assigns a number to each new point The name is displayed on the map as a label below every points You can modifiy this field and set your own name 29 Getting started Last Update Time of the last update for this survey point If the point was never updated then it is the creation time y Pixel coordinates of the point on the map You can manually edit these values and see the point moving accordinly on the map When the map is geocalibrated the latitude and longitude of the point are also shown Many measurements are acquired for each survey point but by default only a few columns are displayed For more details see the section called Survey Point Data 84 MAC address unique identifier of the Access Point or the ad hoc station SSID name of the wireless network RSSI received radio signal strength as reported by the wireless NIC driver
81. ion in the View Properties tool 49 User Interface Reference 6 At this sixth step you have the option to define the Space Parameter used by the regression algo rithm In most cases there is no need to change the default value which is to automatically determine the space parameter from the survey point geometry See the section called Parameters 66 for more information cas New View Space parameter Specify the value of the space parameter to calculate regression Most users should keep the Automatic predefined value If you want to manually set the space parameter please read the online help for more details Predefined values Easy regression RSSI Automatic Parameters Easy regression RS5I Office Space i Easy regression RSSI Indoor Space Easy regression RSSI Urban Outdoor Space Easy regression RSSI Large Outdoor Space Manual value Office Space Large Outdoor You can change these values later in the Parameters section of the View Properties tool lt Back Create Cancel If you want to set the space parameters manually you should choose a value that represents the typical free space between obstacles in your propagation environment The optimal space parameter value depends on the propagation environment and the survey point geometry Find dialog Covera Zone can represent stations with icons on the map The Find dialog will help you locate either stations or su
82. itself apart from the two mentioned below e matches any single character e matches zero or more of any characters When a filter selects mulitple sources for instance with a condition like SSID MyWireless and when the type of the view is set to RSSI then a regression per source will run The final result for every pixel is the strongest regressed signal of all the sources Since there is a regression calculation per source the total calculation time is more important for views with multiple sources The rationale is to simulate a wireless NIC that will always associates to the strongest access point Overlay In the Overlay section you can control what is displayed in the map overlay layer while in view mode and how it is displayed When the section is closed the type of plot heat map or filled contour is given between brackets View Properties AP1 contour lines Type RSSI Source APs SSID myWireless Overlay Heat Map 9 Filled Contours p Transparency Opacity Y Show Contour Lines E Show Survey Points with value ld Select Filtered Points 4 Show Access Points with Alias r Select Filtered APs Show Color Scale legend Parameters Easy regression RSSI Automatic Calculate 65 User Interface Reference Heat Map Filled Contours Transparency Opacity Show Contour Lines Show Survey Points Show Access Points Select Filtered Points Select Filtered AP
83. ller Space Parameter whereas a regular environment like out door space requires a larger one Several predefined values are proposed for typical environments Resolution The higher the resolution the more pixels to calculate and the longer the calculations Low resolution the regression is calculated only for one pixel out of twenty High resolution the regression surface is calculated for every pixel Advanced open the Advanced Parameters dialog where you can change the regression algorithm Advanced Parameters In this dialog you can choose which regression algorithm to use to calculate the view Advanced Parameters View 1 Select the regression algorithm Easy Regression Legacy regression Envelope around the heat map y Thinner Regularization factor Easy regression This a new regression algorithm introduced with Covera Zone 2 1 based on machine learning theory It is easy to use since the Space pa 67 Legacy regression User Interface Reference rameter is the only required parameter and is faster and more robust on most data set This is the regression algorithm introduced with Covera Zone 2 0 It is not recommended to use it for new projects and is only provided for backward compatibility The following two parameters must be defined Regularization factor This factor is used by the regression algorithm to penalize outliars The higher the factor the more difficult it will be for a survey point to b
84. low appears Pe MAC Address my Wireless 00 AMFE A6 00 31 mylWireless 00 A0 F8 AC 61 9B my Wireless 00 A0 F8 AS FF CA my Wireless O0 A0 FE AS DO A4 my Wireless 00 A0 F amp AS FF D6 my Wireless 00 A0 FB AC 63 0E i x 154 y 92 48 53 30 90 Nae 14 13 22 E Last Update 22 02 2005 17 02 09 3 Inthe Name field you can enter your own text For instance type my name 4 Press Enter to validate the netry The new name is now used to label the point on the map i 2l Getting started Updating a Survey Point The measurements attached to a survey point are automatically acquired when it is first created However you can update an existing point to refresh the measurements In this case the original measurements are replaced with new ones acquired while the point is being updated 1 Right click on the point you want to update to display the contextual menu go Update NS Delete Iqnore Show Data Zoom In pp Zoom Out Overlay Copy Map Area save Map rea as Print Map Area 2 Select Update in this contextual menu Wireless network measurements are acquired 3 The Last Update time shows that the point has been updated SSID RSSI MAC Address Type myWireless 00 A0 F8 A6 00 31 my Wireless 00 40 F amp AC 61 9B myWireless 00 A0 F8 A5 FF CA my Wireless 00 A0 FE A9 DO A4 myWireless 00 A0 F amp AS FF D6 my Wireless 0
85. matically created for a new project You can add additional report with this button Add composition Add a new composition to the active report Delete Delete the selected report s and element s in the bootom part of the Report Manager Move up amp The order of the elements in a report is the same as the order Move Down of the elements in the tree shown in the bottom part You can use these two arrows to modify this order 80 User Interface Reference To generate the active report 1 If several reports are defined select the report you want to generate The active report is the one displayed in bold in the bottom part of the window 2 Click on the Generate button 3 Choose a file name and the report format in the following dialog Documents Covera Reports v be Views PB New Folder Favorite Links Date modified Type ES p er This folder is empty BE Desktop l Recent Places Computer E Documents More Folders Aal I t File name Save as type Dynamic HTML Repo HTML Report htmil Dynamic HTML Report Atml Rich Text Format Ad Report rtf h gt deros ch Tat Forme US Repon Ch 4 Press the Save as button O Note Generating a report may take some time depending on the amount of data in the report and the format RTF reports require more processing During this time the user interface may be unresponsive Composition
86. n along multiple paths Signals along different paths have traveled different distances and hence reach the receiver with different phases This will create constructive and destructive interferences 12 WLAN basics Receiver Sensitivity When the transmitted signal eventually reaches the receiver it may be so attenuated that the receiver cannot handle it depending on the sensitivity threshold of the receiving device 1 e the minimum power required to handle arriving frames at a given link speed Receive Sensitivity is a distinctive characteristic of a 802 11 device and will vary across different products Signal strength is measured on a logarithmic scale expressed in decibels The higher the signal the better the performance of the wireless network At the client side Covera Zone does not directly record the signal but an indicator provided by the wireless interface driver called the Received Signal Strength Indicator or RSSI On a typical WLAN RSSI will range from 20 dBm very close to the AP to 95 dBm away from the AP The following table shows the sensitivity threshold for a typical 802 11 b g network device Assuming a 10 dBm margin to account for the inevitable RSSI fluctuations in the link budget the current generation of 802 11b g devices can maintain a wireless connection for a signal stronger than 84 dBm However a good connection will require at least 75dBm Signal Strengh Link Speed Theoretical free Theoretical
87. n be specified in the options 55 GPS User Interface Reference The GPS tool enables automatic survey point acquisition based on the position fix provided by a GPS receiver Please note that the GPS will only work for outdoor surveys This tool is not visible by default to show it 1 Make sure you are in survey mode by clicking on Survey in the mode tab 2 Select Tools gt GPS from the menu By default the GPS is not setup and a GPS not running state will be reported GPS Not available GPS receiver State Gps Not Running Positon atellites HDOP Take a survey point every E Add Point Now To use the GPS receiver you must set the appropriate serial port parameters and Enable GPS in the options When correctly set the GPS receiver will be detected when the application is launched and reported in the NMEA Detected state However the GPS receiver may need some time to provide the first position fix When it is ready and starts sending positions the GPS tool will look like this GPS GPS receiver State MMEA Detected Position 46 54 58 56 N 2917 37 56 E Satellites 4 HDOP 4 1 Current Time 02 04 2007 20 56 35 GPS Survey Points Take a survey point every 20 Add Point Now i Start The following GPS survey points actions are available only for georeferenced campaign Start Click on this button to start automatic survey point acquisition Take a survey point every Minimum distance b
88. ne Fill Minimum 0 0 Mbit s Maximum 3 5 Mbit s Temporary dotted lines appears on the map overlay These lines have been spaced according to the default settings You can now modify these settings and decide how many lines you want to add along a specified interval The interval depends on the type of quantity RSSI throughput set for the view Number Number of lines to generate Determines the spacing between lines between generated lines will have a value greater than this Minimum and generated lines will have a value lower than this Maximum Press Add generated lines to confirm your choice If you close the section before confirmation the temporary lines will disappear If you confirm your new lines will be listed and also appear on the map overlay with a plain line style 78 User Interface Reference Contour Lines Generate Lines Number 7 between 0 01 and Je Add generated lines Mame Value Index Line Fill Minimum 0 0 Mbit s 52 0 0 8 Mbit s Hide 1 1 6 Mbit s Hide o E 2 2 4 Mbit s Hide OO 3 3 3 Mbit s Hide OO 3 5 Mbit s E 4 1 Mbit s Hide 4 9 Mbit s Hide 5 7 Mbit s Hide a E ll 8 5 The Fill colors have been automatically determined from the Heat Map Color Scale Report mode tools The report mode is used to create reports based on campaign data for archival purposes and regression views calculated on this data for grap
89. nterface utilisateur H E P riph riques systeme a Ports COM et LPT m Ed Prolific USB to Serial Comm Port COMA m i Processeurs c Souris et autres peripheriques de pointage 6 Identify the serial port used by the GPS and note down the port number x COMx In this example a virtual port is created on COM4 for a USB GPS 101 How to Now we can configure Covera Zone 1 Launch Covera Zone 2 Select Tools gt Options from the menu 3 Select the GPS receiver branch Options General Options Gps receiver 4 User Interface Fl Enable GPS Signal Graph Serial Port Settings Visible APs Port AUTO DETECT Saud 4900 Survey Options sE View i i ac Parity No Default Settings 4 Check the Enable GPS checkbox 5 Enter the port number in the Port field You can usually keep the default values for the other settings 6 Click on the OK button 102 How to We can now check that the GPS receiver has been succefully detected 1 Switch to Survey Mode by clicking in the tab bar 2 From the menu select Tools GPS 3 After some time required for the GPS receiver to start up up to a few minutes you should see something like this GPS receiver State MMEA Detected Position 48 5458 56 W 2217 37 56 E Satellites 4 HDOP 4 1 Current Time 02 04 2007 20 56 35 PS Survey Points Take a survey point every Add Point Now Ms Start How to measure HTTP throughput
90. ny number of campaigns A project is saved in a file with a cvr extension Note On Windows XP you must run Covera Zone from an account with administrator privileges By default Covera Zone will open on an empty project when you launch it In this case the map area is grey and contains only two shortcut buttons to open an existing project file or to add a new campaign to this empty project Covera Zone Untitled Project N aon ex File Edit Mode Tools Device Help avn 5 4 2 9 Y Survey Mode 7 View Mode GS Report Mode ej epor Signal Graph CELTRIO 00 14 BF 3C A5 84 E 16 Visible APs ZyDAS ZD1211 802 11 b g E SSID RSSI MAC Address WESEA N NE 72 48 00 a0 Fe ne F6 F Webreflexe 85dB 00 14 BF 26 75 3 7 TORTUELAN 86dB OE E6 36 46 85 2 NEUF_D1F4 85dB 00 17 33 53 D1 F NEUF_76DC 83dB 00 17 33 27 76 D Neuf WiFi 84 dB 00 17 33 27 76 E Neuf WiFi 85 dB 00 17 33 53 D1 F A freephonie 87dB A6 01 12 D0 58 3 3 Add Campaign he Open Project CV CELTRIO 60dB 00 14 BF 3C AS5 8 _ Sree oe ee Wireless connection The interface is conne Ex Empty Project A project is made of one or more campaigns Ssid CELTRIO A campaign is a map of the area to be surveyed on Link Speed 54 Mbit s which you will record measurements of your wireless Alias network signal by taking survey points from different locations Mac Address 00 14 BF 3C A5 84 Encryption Me Paam
91. ode Signal Graph CELTRIO 00 14 BF 3C A5 84 E SS PA ast 3 i i E if y 13 Visible APs ZyDAS ZD1211 802 11 b g Wireles E q SSID RSSI LinkQuality CAdd ig WESEA_NONE 72 dB 56 00 Aral Webreflexe 83 dB 34 00 0 NEUF_D1F4 84 dB 32 00 ohn 0 Neuf WiFi 84 dB 32 00 ae MP Livebox FE38 86 dB 28 00 Lidl 4 Livebox E730 86 dB 28 00 d freephonie 87 dB 26 R i 0 CELTRIO 60 dB 80 00 yp lt Hidden gt 83 dB 34 00 i eme iai baar o m Ssid CELTRIO Link Speed 54Mbit s Alias Mac Address 00 14 BF 3C A5 84 Encryption WPA Personnal Signal RSSI Qu 60 dBm LIL Workspace e The Map Area is where the background map views stations and survey points are displayed not represented here Graphical overlays can be dispayed over the map area like a scale legend at the bottom right corner 38 Modes Covera Zone can operate in three different modes depending which phase of a wireless survey project you are into e In Survey mode you typically walk around the area under test and take measurements from different User Interface Reference positions All this data is stored in a campaign e In View mode you calculate views based on the campaign data to analyse and visualyse the coverage of a wireless network e In Report mode you can create reports from campaign data and views A rep
92. or increased by amplifiers and high gain antennas A high gain antenna do not actually increase the power but concentrate it to a certain direction of space The more directional the antenna the higher the gain and the EIRP in this direction Typical WLAN devices use omnidirectional antennas that radiate the signal in all directions hence providing only a modest gain in a given direction The actual EIRP varies with product manufacturer and antenna used Access points and clients on the same network may transmit at different power levels Usually Access Points transmit at a higher EIRP than clients because they have no need to save on power as they are permanently connected to a source of electrical power In most countries the EIRP is subject to regulatory limits Path loss When energy is radiated from the transmitter s antenna EIRP a wavefront propagates through the air and around obstacles encountered along the way The signal loss on the path between the transmitter and the receiver is called path loss In an ideal free space environment radio waves would propagate from the access point to the wireless client without hitting any obstacles In this case the free space path loss would be due only to power lost as energy disperses into the air This why the free space loss formula given below only depends on the distance d between the transmitter and the receiver as well as the wave length and the gain Gr Gt of the receiving and transmitt
93. ort is snapshot of the state of your wireless network published as a HTML RTF or KML document In a given mode only the relevant dockable tools are accessible To see a complete list of all the dockable tools available for the current mode open the Tools menu When you switch to a different mode the content of this menu will change Note O Certain operations are not possible when the application is not in the appropriate mode For in stance when using Covera Zone in survey mode you can only access the tools useful for a wireless site survey like the radio signal strength indicator or the information about the current wireless connection You can switch between modes with the Modes menu the mode toolbar shown above or using keyboard shortcuts For more information on this last option see the section called Keyboard shortcuts 44 Dock Area You can undock a tool by grabbing its title bar and move it out of the dock area while pressing the mouse as shown below Y survey L 1 GF ven B Report Signal Graph CELTRIO 00 14 BF 3C A5 84 EA Ssid CELTRIO Link Speed 54 Mbit s Alias Mac Address 00 14 BF 3C A5 84 Encryption WPA Personnal Signal RSST aes Wireless connection The interface is conn Fa lt gt Covera Zone F cygwin home hassan trunk samples indoor cvr Campaign 1 File Edit Mode Tools Device Help a DA Na ez 9 Survey
94. ower levels lt 100mW As a consequence the coverage area of a given access point is limited to tenth of meters in a typical office space or hundreds of meters in an outdoor set up To cover larger areas it is necessary to add several access points to the network For instance the wireless network on the following diagram is made of two access points Wired Workstations Server _ Wired LAN Access Point wm Access Point AP 1 i i AP 2 w N 3 a 4 t i WLAN basics Transmitter and receiver When data is sent from an access point to a wireless client the access point is a transmitter and the client is a receiver On the contrary when data is sent from the wireless client to the access point the wireless clients is the transmitter and the access point is the receiver An access point or a wireless client can both transmit or receive but not at the same time A Y A qm Y Transmitters and receivers use antennas to change radio signals in the air into electricity or vice versa Antennas send radio signals receive signals or both Some equipment may use several antennas to improve the overall performance of the radio system Radiated power Wi Fi devices transmit data by radiating radio signal energy at a given power referred to as Equivalent Isotropically Radiated Power or EIRP gt mz A l l C l This output power can be attenuated by cables and connectors
95. pe myWireless 73 dm 00 A0 F8 46 00 31 myWireless 83 dBm 00 A0 F8 AC 63 0E my Wireless 84 dBm O0 A0 F amp AC 61 9B my Wireless 18 dm O0 A0 F amp A5 FF CA myWireless 79 d m 00 A0 FE A5 FF D Mame 26 49 5330 10 N 2 1415 89 E Last Update 22 02 2005 17 08 32 Name Name of the survey point A number is assigned as the default name of a new survey point X Y Pixel coordinates of the survey point If you modify these fields the point will move accordingly in the map area When the map is geocalibrated the latitude and longitude of the point are also displayed You can sort the list of access point by clicking on the headers If you click on the column header with the right mouse button you will be able to set which additional columns to show and which columns to hide The list all available properties is given below O Note Certain properties are available only for the connected access point when the survey point was acquired Moreover optional IP layer measurements In this case the content column will be empty of these access points SSID Service Set Identifier of the address network name broadcasted by the access point Mac Address MAC address of the station Alias user defined MAC address alias 84 User Interface Reference Channel radio channel number as per the 802 11 specification e to 14 for 2 4Ghz depending on countries e 34 to 161 for 5Ghz depending on countries Type type of network based on 802
96. perties its name and type The type is the quantity that will be used to make regression calculations from the data recorded in the survey points All the available types are provided in the drop down list The name must be unique as it is used as an identifier Es New View View name and type Please assign a name and select a type for this view Name ETE Short description identifying the view e g myAP Contour Type RSSI Received Signal Strength Indicator instant value Quantity you want to plot lt Back next gt Create Cancel 47 User Interface Reference In this second step you set the source access point Your have probably recorded many different access point in your survey data Here you can specify which one s should be taken into account for this new view by defining a filter See the section called Source APs 64 for more information cep New View Source APs The coverage graph is calculated for the selected source access point s MAC Address DO AD FB AC 61 9B Select a source access point with its MAC Address myWireless Select multiple source acess points sharing the same a SSID Display an icon on the map for each selected source s At this third step you define how to represent the result of the regression calculation Es New View Graph Define how to plot the coverage graph Representation Heat Map Filled Contours Opacity Full transparency You c
97. places This data is later processed to create visual coverage maps Covera Zone will calculate a signal strength for locations you haven t visited during the site survey This operation is called regression 14 WLAN basics Tips for surveys Temporary modifications to the propagation environment like people walking in an office corridor do impact RSSI measurements When you walk around the network under test your own body can create a screen between the access point and the wireless client running Covera Zone if you don t pay attention To conduct repeatable site surveys we recommend that you follow these rules e Conduct campaigns with a measurement terminal whose wireless device is similar to the devices used on the network When different NICs are used on the network make the measurements with the lowest specification device e The more measurements you take the better the regression and the accuracy of the generated coverage map e FOR DRIVE TESTS You should use an external antenna connected to the client Ideally this antenna will be mounted on the roof of the car It is recommended to set a step of at least 50 meters between automatic GPS survey points If the GPS step is too small a new wireless scan cannot be completed between each step and you will record the same wireless network data on multiple GPS positions e FOR WALK TESTS You should always face the closest access point when making a survey point This will ensure tha
98. ransparency aoe 4 Show Survey Points with Name o Ei Show APs with Alias r The slider sets the individual level of transparency of a view in the composition With the two up down arrows you can modify the stacking order of the views in the composition You can also completly hide a view by unchecking the associated check box You can configure if and how the survey points are displayed in the composition 82 User Interface Reference Outdoor survey All APs heat map Outdoor survey AP contour lines Transparency Show Survey Points with E Name No label You can also configure if and the acess point icons should be displayed in the composition Outdoor survey All APs heat map Qutdoor survey APL contour lines Transparency Show Survey Points with Show APs with no label Common tools The two following tools available in all of the three modes Survey View and Report mode 83 User Interface Reference e Survey Point Data e Access Point Data Survey Point Data The Survey Point Data tool displays all the data recorded for the selected survey point as a list of access points This data is recorded when the point is created or updated To show this tool select Tools gt Survey Point Data from the menu bar Alternatively you can also double click on a survey point in the map area or use the contextual menu of a survey point to open this tool Survey Point Data 28 SSID RSSI MAC Address Ty
99. ression algorithm on the values recorded in the survey points To add a view to a project you can launch the View Wizard from different places e from the View Manager from the menu Mode gt Add View e or from the contextual menu of the view tab bar There are two different graphical representations of the regression result each one with 1ts own dedicated configuration tool e Heat Map Color Scale for heat maps e Contour Lines for filled contours By default all the survey points are taken into account during the regression However you have the option to ignore certain points that you consider as outliars Just mark them as ignored in the survey point contextual menu View Manager The View Manager tool shows all the views declared in the current project If you want to change the name of a view you can edit it in place by double clicking on the name Each view must have a unique name When the project contains several campaigns the View Manager shows the hierarchy of all the campaigns and views All APs heat map Campaign 1 AP1 contour lines All APs heat map Viewl AP1 contour lines View 1 Campaign 2 Viewl When you select a View in the View Manager the display of the map area changes accordingly You can also use the view tab bar for the purpose x Delete Remove the selected view s from the project after confirmation B Add View Launch the new view wizard All the properties of an existing view
100. rs test Desktop Setup_Covera_Zone_2 1 exe Publisher CELTRIO Type Application From Users test Desktop Setup_Covera_Zone_2 1 exe Always ask before opening this file potentially harm your computer Only run software from publishers you trust What s the risk oe While files from the Intemet can be useful this file type can A ls Click on Run If you started this program continue A Covera Zone 2 1 Installer CELTRIO User Account Control helps stop unauthorized changes to your computer Click on Continue Introduction 3 This will launch the Covera Zone installer wizard p cove ra Welcome to the Covera Zone 2 1 Setup 20ne D Wizard The Setup Wizard will install Covera Zone 2 1 on your computer Click Next to continue or Cancel to exit the Setup Wizard Click on Next to start the installation procedure If you want to exit the procedure just press Cancel 4 Read the License Agreement and check the I accept the terms in the License Agreement box then press Next End User License Agreement Please read the following license agreement carefully This License Agreement is a legal agreement between you either an individual or a single entity and CELTRIO SARL CELTRIO BY DOWNLOADING AND INSTALLING COPYING OR OTHERWISE USING THE SOFIWARE YOU AGREE TO BE BOUND BY THE TERMS OF THIS LICENSE AGREEMENT IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT YOU MAY NOT DOWNLOAD INSTALL COPY OR U
101. rsonal WPA2 personal WPA enterprise WPA2 enterprise Bar graph representation of the Received Signal Strength Indicator The Chase AP dockable tool provides an estimation of the distance to a chased access point with a sound feedback This is useful to locate rogue access points This tool is not visible by default to show it 1 Make sure you are in survey mode by clicking on Survey in the mode tab 2 Chase AP Select Tools gt Chase AP from the menu Chased Access Point Infos 00 14 BF 3C A5 84 CELTRIO Chased Access Point CELTRIO Rssi 39 dBm Mac Address 00 14 BF 3C A5 84 Vendor Cisco Estimated distance 0 Meters A A Chased Access Point Rssi Mac Address Vendor Estimated distance This is the alias of the chase AP Since a default alias based on the SSID is automatically assigned when taking a new survey point you may see the SSID here Instant value of the Received Signal Strength Indicator in dBm Mac Address of the chased access point Manufacturer of the access point based on the first bytes of the MAC address declared at the IEEE This is an estimation of the distance based on the RSSI assuming a logarimthmic pathloss law You can change the unit in the menu The bar graph gives a visula representation of this estimation Click on this icon to toggle the sound feedback The closer the Chase AP the higher the frequency of the sound A different sound ca
102. rvey points on the map area To show this dialog select Edit gt Find from the menu gt Find Locate source Access Point Reset Location Find Survey Points l dose if Center Map Area on Position Close Locate source Access Point Check this to find an access point The drop down menu will be populated with the list of all kown stations Find Survey Points Check this to find a survey point The drop down menu is populated with the list of all survey points sorted by name Find Look for a matching item based on the input given in the drop down menu Survey points are matched by name and access points by Mac address If a matching item 1s found 1t 1s then selected 50 User Interface Reference Center Map Area on Result If checked the map area is automatically centered on the selected item when a matching item is found Reset Location By default an access point is located on the survey point with the strongest signal However you can move the station s icon after wards Pressing this button will move the station back to its default position Close Close the dialog See also the section called How to locate stations on the map 98 Survey mode tools In this mode survey points are added to a campaign either manually by giving a position on the map or automatically with a GPS receiver i 5 Covera Zone F cygwin home hassan trunk samples outdoor cvr Outdoor survey File Edit Mo
103. s 7 0 7 1 7 2 7 3 Maximum 0 9 Mbit s 1 6 Mbit s 2 5 Mbit s 3 0 Mbit s 3 7 Mbit s 7 0 Mbit s You can a line outside of the minimum maximum interval It will be listed here but will not be visible in the map overlay 76 User Interface Reference Deleting contour lines 1 Select the contour line you want to delete You can select multiple lines by simultaneously pressing the Shift or Crtl keys during the selection Contour Lines Generate Lines Number 7 between 0 01 and Jb Add generated lines Marne Value Line Fill Minimum 0 0 Mbit s 0 8 Mbit s 1 6 Mbit s 24 Mbit s 3 3 Mbit s 3 9 Mbit s 2 Click on Delete x The confirm dialog will show up E Confirm Contour Lines Delete Delete these 1 Contour Lines e You can also press on the Delete key on the keyboard 3 Inthe Confirm Contour Line Delete dialog click on the OK button to confirm Generate Lines The Generate lines feature is handy to automatically generate several contour lines in a single operation Generated lines will be evenly spaced in terms of index value l From the menu select Tools Contour Lines to display the corresponding dockable tool if not already on the screen 2 Click on the chevron icon to open the Generate Lines section the Contour Lines 17 User Interface Reference Contour Lines Generate Lines Number 7 between 0 01 and Jb Add generated Name Value Li
104. s Parameters Values calculated by the regression algorithm are plotted as a heat map defined in the Heat Map Color Scale dockable tool Plot filled contours The filled regions are delimited by contour lines defined in the Contour Lines dockable tool This slider controls the level of transparency of the regression plot If checked contour lines will be added to the overlay The values and other properties of contour lines can be modified in the Con tour Lines dockable widget You can open this tool from the Tools menu or by clicking on the underline hyperlink If checked survey points are added to the overlay You can also choose the label to show below survey points If checked access points with a position are represented with an icon over the map area You can also choose the label to show below the icon in the drop down menu To assign a position to or locate an access point drag drop live APs from the Visible APs tool or recorded APs from the Survey Point Data to the map area You can also use the dialog to locate APs on the map Select all the survey points that satisfy the filter so that you visualize them over the map area Select the icons of all the access point that satisfy the filter so that you visualize them over the map area In the Parameters section you can define the parameters of the regression algorithm used for the view When the section is closed the name of the selected profile is given between
105. s Run 5 At the server side you will see something like this Server listening on UDP port 5001 Receiving 1470 byte datagrams UDP buffer size 107 KByte default local 192 168 17 2 port 5001 connected with 192 168 17 105 port 1136 3 0 0 10 0 sec 14 1 MBytes 11 9 Mbits sec 2 569 ms 0 10072 0 3 0 0 10 0 sec 1 datagrams received out of order O and in Covera Zone on the client machine Address 192 168 17 2 Client connecting to 152 168 17 2 UDP port 5002 Sending 1470 byte datagrama UDP buffer size 8 00 KByte default 2004 192 168 17 2 port 500 2004 0 0 10 0 sec 14 1 MBytes 11 8 Mbits sec 2004 Sent 10064 datagrams 2004 Server Report 2004 local 192 168 17 102 port 49245 connected with 0 0 10 0 sec 14 1 MBytes 11 8 Mbits sec 2 342 ma 07 10064 0 Enable Iperf UDP How to georeference a map Georeferencing a map will allow Covera Zone to locate your current position on the map from the infor mation provided by a GPS receiver This is useful for outdoor surveys In this section we will assume that you are using Google Earth to obtain high resolution aerial images 1 If Google Earth is not installed on your machine you can download it from http earth google com a Launch Google Earth and navigate to the place you want to survey b Set the Zoom factor so that the area of interest is taken the whole screen C The save an image File gt Save Save Image 109 How to
106. software Type Type of network A 802 1la B 802 11b G 802 11g deter mined from Max Rate Layer 2 RSSI MAC data is instantly available for all the visible stations in the air and is recorded for every survey point Covera Zone can also make layer 3 IP level measurements Since these are longer to complete they are not enabled by default See the section called IP layer performance 57 for more information Moving a survey point l Click on the Selection icon in the tool bar RQ o elC Move the cursor over a survey point Notice that the point turns red Click on the point while it is red A white frame appears around the survey point to show that it is selected Click on the selected point and keep pressing while you move it When you release the mouse the survey point will keep its new position All the measurements attached to the point when it was created remain unchanged This feature is useful to adjust a position 26 Getting started Renaming a survey point Covera Zone automatically assigns a number to every new survey point and uses this number as a name for the point You can assign a more meaningfull name 1 Right click on a survey point to display the contextual menu ge Update Delete Ignore 5how Data Zoom In Zoom Out Overlay Copy Map Area save Map Area as Print Map Area 2 In this contextual menu select Show Data A window similar to this one be
107. stom Colors gt gt Alpha channel 255 2 In the Select Color dialog pick up a different color 3 Click on the OK button The control point value is now associated with your new color 71 User Interface Reference To delete a control point 1 Select the control point Heat Map Color Scale View 1 Pa RSSI Color Scale 30 00 dBm Adjust boundaries after calculations 2 Press the Delete key on the keyboard Be careful the control point will be deleted without asking confirmation RSSI Color Scale User Defined Adjust boundaries after calculations The scale is automatically updated to reflect your change e You can also delete a control point by selecting Delete this control point from the contextual menu that appears with a right mouse click over the control point 72 User Interface Reference To add a new control point for a given value 1 Make sure no control point is selected click anywhere but on a triangle to unselect a control point 2 When you move around the band notice the variations of the values in the box below the band 3 Double click in the band where you want to add a new control point The color selection dialog will show up 5 Select color Basic colors Sat 255 Green 255 Val 255 Blue o E Alpha channel 255 e Youcan also add a control point by selecting Add control point here from the contextual menu tha
108. t appears with a right mouse click over the desired position 4 Select a color and press OK 73 User Interface Reference You can modify the boundaries of the color scale For instance to decrease the minimum L 2 Grab the color scale by pressing on a left end of the band and keep pressing W Adjust boundaries after calculations While pressing move the cursor to the right Notice how the minimum value is modified and how the overall scale is shifted as you move When the minimum value has reached the value you expect release the mouse e You can also type directly the minimum and maximum values in the appropriate fields at both ends of the scale and validate with Enter Contour Lines The Contour Lines tool is used to set contour lines and their related properties A contour line is defined by a value called the index of the line in dBm or MBit s depending on the view type The contour line will separate the area where the interpolated value is higher than the index from the area where the interpolated value is lower than the index This tool is not visible by default to show it 1 2 Make sure you are in view mode by clicking on View in the mode tab Select Tools Heat Map Color Scale 74 Contour Lines Generate Lines Mare Minimum 0 1 2 7 3 y 4 7 5 7 6 Maximum Name Value Index Line Fill Minimum Maximum O Note 68 dBm 64 dBm 60 dBm 56 dBm 53 dBm
109. t does ESOS LAME A auedencneiie eas Sennen ena da 115 Q After I ve set the scanning interval to Is I get weird RSSI measurement Why 115 Q I have a Wi Fi interface mon my machine but I get the message Cannot find a wireless device at launch Whats the problem A chads 115 Q A flat signal is reported all over the survey area Why ccccecec cece ence eeeeeenenees 115 Q Covera Zone does not record anything when my laptop goes into sleep mode 115 Y E AA A retin te eee ea ome eee aan date kee 115 Q My firewall software raises an alert when I open the user guide Why 0000 115 Q How can I speed up the calculation Of a view 2 0 ccc ccc cc eee ce nce eeec eee ee ene eaenseeeeaeneeas 115 Q What is the maximum number of survey points in a project 2 cece ese ee ene ee ee eee ones 115 Q Why are the RSSI values shown in the bottom left different from the measurements 115 Q What are the different methods to calibrate a Map c cece cee e cence ee ec ene eeenseeenenees 116 1 License Q A I get an activation failure when I use my activation key Why There are several cases e Connection Error make sure there is no firewall either on your machine or on your corporate network that may block traffic to our license server port 80 e This activation key is not valid you ve probably mispelled the activation key e Activation is not allowed on this mac
110. t the measurements for the closest AP will not be biased by the body screen effect Ve NO YES e Try to make site survey campaigns while the area is quiet this is to avoid temporary obstacles like people walking in the corridors e For each survey point make sure the measurement terminal always have the same vertical orientation As most Access Points have vertical antennas this will ensure that the same relative orientation to the access point is maintained for all survey points 15 Chapter 3 Getting started Table of Contents CTCAUMO a PLOJECL susi paco Adding a campaign tO A PTOJEC merino e di Cabano TMA sisas Controlli o he map display secado iaa Suey POIS tesis E psico blaco ia Addin A A e o No Content ol a SUIVCY FODD suo Movino a SUPVEY POUL acasncerrradnccacecangcadidcuentedomecnvedentoatadinedanntentad tetembietuhhetenaneinedaeedant Renamins d survey POINT cosissccceansacciccareicinesecetunetehecuneaesasieenshdcwnaeesohunatehigunoseaieeneneaecs Updating a Survey Point sta Delete Survey DOTES ec weet ER A e O IA EA Calculali o a VIEW suicidado iras PROMI A NIG E O OU PE RO A CMGI AUIS Tenor eros E Creating a project A Covera Zone project is made of all the data recorded during a wireless site survey as well as all the parameters required to generate and display views and reports based on this data A project is organized in campaigns It should contain at least one campaign to be useful but can hold a
111. tep you have to specify which source access point s are to be considered for this view For instance select a MAC address from the drop down list This list is based on the recorded data It will be empty if the campagin countains no survey points SY New View a Source APs 2 6 The coverage graph is calculated for the selected source access point s O MAC Address 00 A0 F8 AC 61 9B y Select a source access point with its MAC Address SSID myWireless y Select multiple source acess points sharing the same a SSID V Display an icon on the map for each selected source s lt Back Next gt _ Create Cancel 32 Getting started 6 Press OK to create the view There are additional steps in the view wizard but default values will be used for the other parameters For more information see the section called View Wizard 47 To launch the calculations and render this view press the Calculate button Generating reports Covera Zone allows you to generate reports based on site survey data and views The follolwing output formats are supported e HTML for display in Web browsers simple static HTML and interactive dynamic HTML e Rich Text Format RTF for use in Microsoft Word or Open Office Writer e KML for display in Google Earth O Note Google Earth is a virtual globe program It maps the earth by the superimposition of satellite images and aerial photographs over a 3D globe Covera Zone can export g
112. traffic like Web or Mail traffic 3 Download Iperf from http dast nlanr net Projects Iperf and install it on your test server Windows or Linux On the server machine type the following command to start the iperf server bash iperf server port 5001 interval 1 Server listening on TCP port 5001 TCP windows size 85 3 KByte default If you want to use a different port replace 5001 with the desired port number The Iperf server is now waiting for a connection from a test client Make sure the firewall on the test server will allow TCP traffic on port 5001 On the test machine running Covera Zone pd From the menu select Tools IP Layer Performance Press the Iperf tab Set the address of the server in the Address field In our case 192 168 17 2 Press the Run button At the server side observe the client connection Server listening on TCP port 5001 TCP window size 85 3 KByte default 4 local 192 168 17 2 port 5001 connected with 192 163 1 7 105 port 4488 4 0 0 1 0 sec 888 KBytes 7 27 Mbits sec 4 1 0 2 0 sec 888 KBytes 7 27 Mbits sec 4 2 0 3 0 sec 1 00 MBytes 8 42 Mbits sec 4 3 0 4 0 sec 1 43 MBytes 12 0 Mbits sec 4 4 0 5 0 sec 1 77 MBytes 14 8 Mbits sec 4 5 0 6 0 sec 1 46 MBytes 12 2 Mbits sec 4 6 0 7 0 sec 1 65 MBytes 13 8 Mbits sec 4 7 0 8 0 sec 1 28 MBytes 10 7 Mbits sec 4 8 0 9 0 sec 1 17 MBytes 9 84 Mbits sec 4 9 0 10 0 sec 1 01 MBytes 8 47 Mbits sec 4 0 0 10 0 sec
113. ts title bar and moved it in out the dock area while pressing the mouse You can also move a tool over the workspace and avoid docking by grabbing its title bar and clicking the right mouse button Alternatively you can use the left mouse and the Ctrl key at the same time Map User Interface Reference All the dockable tools share the same action icons in the title bar Fa expand or collapse the dockable tool Close the tool You can always re open a closed dockable tools by selecting it directly from the Tools menu area The background map and the regression views are displayed inside the map area Scroll bars around the map can be used to navigate in large maps The navigation icon located on the lower right corner of the map e is used to show a miniature of the background map This is useful to simplify the navigation over large maps as shown below When you move the mouse over the map notice that the corresponding coordinates are displayed in the status bar 364 000 1116 000 px If you click on the coordinates in the status bar you will have the option to select the coordinates unit You can choose to display latitude and longitude coordinates when the campaign is georeferenced For more information see the section called How to georeference a map 109 Y Pixel D Meter Kilometer Foot Yard Mile Lat Long S 41 User Interface Reference Menu File menu File gt New Proje
114. unt to plot the view Only the source access point matching all the conditions of a filter are selected A filter is made of one ore more conditions linked together by a logical operator my Wireless myWireless Overlay Filled Contours Parameters Easy regression RSSI Automatic Calculate The following actions can be applied to a condition dh Add a new condition to the filter mi Remove the selected condition from the filter Fla Move the selected condition up or down Source APs ES E like not like Overlay Filed Contours Parameters Easy regression RSSI Automatic Cean 64 User Interface Reference In the example above we have defined a filter to select all the sources sharing the SSID myWireless When adding a new condition to the filter you must define the following elements What to match Select a quantity from the drop down list menu MAC addresses SSID Comparison operator llikelnot like Value to match String for or operator Wildcard expression for like or not like In the case of a MAC address or SSID condition a drop down list of the data extracted from the survey points data 1s presented Link Operator and or Only required 1f you want to link several conditions together O Note A wildcard expression is a string of characters that may be substituted for any of a defined subset of all possible characters Any character represents
115. w Mode Mode gt Add View Add a view Mode Delete view Mode gt Calculate View Mode Clear View report mode actions Mode Report Mode Delete the selected view Launch the calculations for the current view Clear the current view Switch to Report Mode disabled if the application is already in Report Mode 43 User Interface Reference Mode gt Add Report Add a report to the current project Mode gt Delete Report Delete the current report Mode gt Add Composition Add a composition to the current report Mode gt Generate Report Generate the current report and save the result to a file Tools menu The Tools menu contains the list of all available dockable windows This list will change depending on the current mode of the application Survey View or Report mode Tools gt Survey Point Data Tools Access Point Data Tools gt Reset Workspace Tools gt Options Device menu Open close Survey Point Data window Open close Access Point Data window Reset the workspace 1 e reset dockable windows reset dockable areas toolbars Open the Options dialog This menu contains the list of wireless NIC detected on your machine Device Properties Help menu Help Use Guide Help gt About Covera Zone Help gt Check for updates Help gt Send feedback Keyboard shortcuts Fl ALT F5 ALT S ALT V ALT R Open the device properties dialog Open Covera
116. window Please note that this throughput depends on network and RF conditions during the test 57 User Interface Reference HITP 192 168_17 2 hij test data 20 297 Mbit s 2477 67 Ebytess 692638 bytes transferred in 273 ms A Enable HTT Address URL of the test file Enable HTTP If checked the HTTP throughput test will run for new survey points and the result will be recorded on the new point Clear Clear the console window Run Run the HTTP test and output the result in the console winow The result is not recorded in any survey point O Test file size A large test file will provide more repeatable measurements but will take more time to download Choosing the appropriate size for the test file is a matter of balancing these two factors In any case a test file larger that 1 Mbyte is recommended However Covera Zone will accept any file larger than 64Kbytes Iperf What is IPerf perf is a commonly used client server network testing tool that can create TCP and UDP data streams and measure the throughput of a network that is carrying them For more informatio see http dast nlanr net projects Iperf Using Perf Covera Zone 2 1 embeds an Iperf client to communicate with an Iperf server running on a test host and acquire TCP and UDP network performance measurements in the process Ideally the test host should be logically located just behind the wireless network For more information see the section calle
117. you can also double click on an access point icon in the map area 85 Mac Address SSID Encryption Supported Rates Channel Mode Vendor Type Alias X Y Locate Options User Interface Reference MAC Address SSID Encryption Supported Rates Channel Mode Vendor Type Alias Kr 00 0F 66 14A 53 B0 MANAGEMENT None 175 569 11 12 18 74 35 418 54 6 Infrastructure Cisco Linksys G MANAGEMENT ch6 360 Reset Position MAC address of the station Network name broadcasted by the station authentication and encryption type Possible values are None WEP WPA Personal WPAZ2 personal WPA Enterprise WPA2 enterprise Bit rates supported In proposed example access point support 1 OMbit sec 2 0Mbit sec 5 5Mbit sec Channel used by the access it specify the frequency during wireless communication Wireless network mode infrastructure or ad hoc The hardware vendor extracted from the Mac address Wireless network type 802 1 1a b g n Alias for this Mac Address You can modify it by editing the content of this field Pixel coordinates of the stations If you modify these values the access point icon will move accordingly on the map area Pressing this button will reset the position of the access point and locate it where it was seen with the strongest RSSI To open the option panel use the menu bar Tools gt Options 86 User Interface Reference Options
118. zone ce User Manual version 2 1 Covera Zone 2 1 User Manual 2 1 0r1797 Published Feb 2008 Copyright O 2008 Celtrio Sarl All rights reserved Covera is a registred trademark of Celtrio Other trademarks are the property of their respective owners Table of Contents e POCUCCIOM ta ld al l What is ENE AOE a del dee ness tae tedewten cunts l What snew im Covera LOS Zoo ti ri A A AEN l ComparmeCovera and Coveri LODO ds l SV S CMETCCUITCINICNIG astro Ria odia 2 Instale C Overa Zone sikaan an r o oi 3 Liceo ACHA ON a da E O AE AE E AA NNA 6 Onine SUPPO ai A DA ES 8 ZA WLAN DASOS tada adria rutas 9 INGEWOPK ATCOINCCLUNG a doo ios 9 Transmitter and TECE IVETE liada a 10 Radiated power E ae pude tosiannca E E EA 10 Paticioss aer a rios 10 IDECO OF OUSEACICS ec a0S 11 Receiver SCMSIUVALY alt io ir tia t teeters aS 13 Factors iiipacine RSS AS AA A AAA 14 WIC OVITE E tata ad atest canst reen Meat ceae tet ewteeicataten tere teetletaries 14 TADS TOU SUEVCY S out 15 SAGE LIMO Sae achincn tense se o E O O O igtdan 16 Creatina apro EC ANA 16 Adding a campa n toa PIOlCCl gt artis tdi 17 Calnbraunsa Mla e SAE a AE E ss eae uaseareeoeadiats 20 Controllime the Map display a a oe dae cinds 22 SSY LOS S 24 Addme Survey POL arta a ada 25 Connora Sure PONE uds 25 MOVIN Ca SURVEY POMI das dia a AA 26 Renaming a Survey DOTA a AD A AN 27 Updating sa Survey POME i200 tieviceroue lla dio Hatters N S aN Ne 28 Deleu

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