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1. see 73 Figure 14 1 Class Diagram of Admin and Client System seen 75 Figure 15 1 web based WRAP Client Start page eese eene 77 Figure 15 2 Client Login Process sss sees 78 Figure 15 3 Client Registration esses eene nnne enne eene rne enne 79 Figure 15 4 Signup Clients dete 80 Fipure 15 5 Client Panel 42e deed 80 Figure 15 6 Change Password sese sees eee eee 81 Figure 15 7 Client Profile eese eene nennen nennen nene nenne nenne enne nene 81 Figure 15 8 Write log Records Notes esse eee 82 Figure 1529 View Client Log Record i eei ttt tritt erit ehe nesters eoe ERE pE Ets 83 Figure 15 1 O Saved PEOICISqV oett teet erret eheu k ae eria CEEP EEEL epe OERS CEE FER EPOR e Y Cone ea epe pa TRE 83 Figure 15 11 Display Help 1LOpies iste t titre that rh err eat rei eati tpa ea th vT 84 Figure 15 12 Interface of Web based WRAP calculator eee 85 Figure 15 13 Interface to open WRAP projects sese eee 86 Figure 15 14 Map view ATT 86 Figure 15 15 Map settings oi s de cin e in e in ir erra eerie exe rien ere ere eae edu 87 Fipure 15 10 Map Scalesz ae c ai tate RRRA 87 Figure 15 17 Marker tool to set marker on Map sese 88 Figure 15 18 Create Template Station from Wizard eee ee 88 Figure 15 19 Draw selection Area eeesssseessseeeeeee eee eene eene eene ene nennen nennen 89 Figure 15 20 Coverage Planning calculation Wizard
2. eene 90 Figure 15 21 Coverage Results ecce ed ee eee E ree EE Ee ee NER EE EE Y Ne E TENE n 91 Figure 15 22 Printing Map and calculation data sss sss 91 Figure 15 23 Administrative login eese essei eeen nennen annees nnn nnne tenens a 92 Figure 15 24 Admin Panel sss essen 93 Figure 15 25 Add Help Topics essen 94 Web Based System for Radio Planning in WRAP 71 11 Appendix C List of Tables Table 2 1 Coverage calculation models and parameters 24 eene 22 Table 2 2 Resolutions used in WRAP 24 eese eene eene nnne nensi nn nane nnns 23 Table 6 1 Performance comparison between Desktop and web based WRAP eese 60 Web Based System for Radio Planning in WRAP 12 Appendix D List of code segments Listing 3 1 Example XML strings request message API messages 36 Listing 3 2 Example of XML string result message sss sese eee eee 37 Listing 4 1 Silverlight class code access for calling from JavaScript ee 49 Listing 4 2 JavaScript code examples for converting visual commands to XML string 49 Listing 4 3 Openlayers Implementation for base64 map display sss 50 LEisting d 4 CSS TOF Printing aerorose f mr EP EE n 51 72 Web Based System for Radio Planning in WRAP 73 13 Appendix E Relational Database Relational Database Diagrams used in web based WRAP user register user id company
3. High 40 000 area calculation points or 200 line calculation points Very High 160 000 area calculation points or 400 line calculation points User Defined The resolution given in meters can be entered by users same resolution is used in both direction Table 2 2 Resolutions used in WRAP 24 2 3 3 WRAP API Server WRAP API is part of the WRAP software system The basic system contains project exe and some DLL files which contain basic functionality within spectrum management Special tools of greater dignity can be added to WRAP as DLL files e g RadarCoverage dll The use of a DLL structure allows several different software engineers to work continuously with different DLL files Connection with WRAP API is done via sockets with definite port number The port in WRAP API server is configured using APIConfigFile txt file Similarly timeout for the socket can also be configured in similar file Users can change the port number and timeout as per their requirements However changing the port while WRAP server is running is not allowed API server uses XSD files to verify incoming XML strings the valid XML are parsed which will gives the input to the WRAP server If the XML string is invalid it will generate error message The WRAP server will process the data submitted parsed XML as input command values The WRAP calculation will generate result in XML string format Web Based System for Radio Planning in WRAP 24 2 4
4. Asynchronous Request R Asynchronous Response Figure 2 17 Classic vs AJAX Web Model 16 AJAX Adobe Flash Flex Flex is an open source platform for creating rich internet applications Application built with Flex can be deployed using Flash plug in It provides standards based languages and programming model that supports common design pattern It uses MXML a declarative XML based language used for development of UI and uses ActionScript to create client logic Adobe Flash is multimedia platform distributed by Adobe system It was introduced in 1996 Flash provides websites with interactivity animation and to develop RIA It can manipulate both vector and raster graphics and supports bidirectional streaming of audio and video For scripting flash uses ActionScript The feature that adds flash with more powerful is socket programming Microsoft Silverlight Silverlight is a runtime browser plug in which need to be installed in browser in order to start web applications with Silverlight Silverlight combines multiple technologies in to single platform and allow us to select comfortable tool to develop system Like in flex Silverlight also use XAML as a declarative XML based language for building UI and uses various languages like C VB JavaScript etc for client logic 2 6 1 2 Comparison between RIA technologies There are many technologies that can be used to build RIA out of this we had discussed some in section 2 6 1 1 There ar
5. Andres Link ping Sweden 01348 janders thomasson wrap se 1 of wrap is Delete jordered wrap Users v xj 1231 Projects 13 abc corp peas gokul p sweden 009090909 nabin shakya wrap se 1 no le kumar jnathan Fv8K pelete remarking Applications LN aoe link ping swed 090909558 newa hotmail com 1 ok pN2x Delete Contents lil Messages Control New Boardcaste message Edit View messages 2 Help Topics View modify Help topics Add New Help Topics About Wrap WRAP International AB 2009 Tanneforsgatan 8 SE 582 24 Link ping Sweden Phone 46 13 473 45 00 infogwrap se Figure 15 24 Admin Panel e To view the details of system users or clients on the menu click Configurations gt us ers This will show the users details page Click on details on the users list to view the details of the selected user The admin can change user s details and can also see the list of projects that the particular users had created e The administrator can create edit and delete Broadcast messages Go to menu and click Message Control New Broadcast message for creating a new message Si milarly to edit or delete message Click Message Control Edit View message e To create help topics on menu click Help Topics gt New Help Topics Similarly to edit or delete help topics click Help Topics View Modify Help Topics Web Based System for Radio Planning in WRAP admin Logout amp My WR
6. WRAP API server is a machine which is responsible for providing WRAP services to re sponse API message see section 2 3 3 WRAP API servers are able to handle the entire task that WRAP software can handle It can connect through socket from remote places For is suing command to the WRAP API server a remote client will send the XML strings known as API messages as shown in Listing 3 1 via sockets lt xml version 1 0 encoding utf 8 gt lt WRAP xmlns WRAP API 1 0 wrapXMLVer 0 1 reference Kalle Anka visible true gt lt Project reference Musse Pigg gt lt New gt lt Project gt lt WRAP gt Listing 3 1 Example XML strings request message API messages Web Based System for Radio Planning in WRAP 37 The message received from client to server are validated with XSD and then parse XML in WRAP API server to generate sensible commands for WRAP process in WRAP API server see Figure 3 7 for detail working process a cae Fe MI eng ae ag Eie i os a Sk E cece WRAP API server Listing 3 2 Response Message Listing 3 1 Request Message Figure 3 7 Working of WRAP API server WRAP API server gives the results in XML sting format see Listing 3 2 which will be transferred to the client system through same active socket The interaction of this process is analyzed in section 3 2 2 1 The example of API message XML strings is as shown in Listing 3 1 lt xml version 1 0 encoding ut
7. part of coverage calculation is analyzed and designed However to make system full func tional we need to implement various tools such as map browsing tools scale tool and other conversion tool etc Map Interaction Scenario User can use map for many purposes he she can get coordinate positions on the map add markers add new stations can view map in different scales and change map set tings When user changes map settings which means user might want to see different kinds of map such as relief map landcover map map with various vectors or image data etc After setting all required input parameters for the coverage calculation user can send command for calculation to the system And it must interpreted them into respective XML strings and send to WRAP API server as command which will return back result parameters after server completed processing Get Position Add marker T A Details ofthis section are defined d in use case diagram API servers to web server AL extends x S v 7 Add new station extend EN 7 lt a bom JN 7 Ye cextefitta Map settings eae vA ES Client Web System Present Result Figure 3 4 Map Interaction Web Based System for Radio Planning in WRAP 35 Coverage Calculation T Client Display Result Coverage Presentation N includes Coverage Info Show Hide Coverage in Map Figure 3 5 Calculation of
8. SOA is one of the key elements that provide various set of web services that can be consumed by the target browser 2 6 3 Web 3 0 Web 3 0 is defined as the creation of high quality content and services produced by gifted individuals using Web 2 0 technology as an enabling platform calacanis com According to Tim Berners Lee inventor of the World Wide Web has said Web 3 0 technol ogies will become capable of analyzing all the data on the Web the content links and transactions between people and computers A Semantic Web which should make this possible has yet to emerge but when it does the day to day mechanisms of trade bureau cracy and our daily lives will be handled by machines talking to machines 2 2 6 4 Web servers Every web pages or systems either web applications are made with web 2 0 standards or web 3 0 standards they needs some place to store it which then can make it available for rest of the world Such a storage which serves these pages is known as web servers Every web server has an IP address and most probably domain name as well For a computer to work as a web server it should have server software installed and confi gured on it There are many web server software such as Apache IIS etc SOAP is a simple XML based protocol to let applications exchange information over HTTP http www w3schools com soap default asp t s remote procedure calling using HTTP as the transport and X
9. name contact person order type address Y order type id country order name telephone price email order type remarks regcode n 1 user login userProject user id V ID username username pswd projectname savedate user_Notes message id email message date msgtitle Figure 13 1 Relation database diagram for Client user management Web Based System for Radio Planning in WRAP 74 14 Appendix F Class diagrams IData Interface Methods Authenticate 1 CheckLoginUser CheckPinValidity Insert Save SignUp Update UserRegister Class gw Properties amp Address m CompanyName 5P ContactPerson m Country 5P Email 5P OrderType S Regcode 5P Remarks ey Telephone 5P Userld i Methods 79 UserRegister dbconn Class Fields connectionString Methods 7 dbconn a connectionString wd s data E Methods 7 Authenticate CheckLoginUser CheckPinValidity Insert Save SignUp Update UserRegisterDa AdminMessage IS Class 0 4 E Properties m MessageBody m MessageDate 5P MessageTitle i Methods AdminMessage Web Based System for Radio Planning in WRAP 75 UserloginDataS Class i Fields a conn at connectionString wd a data Methods Authenticate CheckLoginUser CheckPinValidity Insert Save SignUp Update UserLoginData AdminMessage Class i Fields E AdminCommand a conn a connectionString a d 9 dat
10. 16 17 18 19 20 21 22 25 24 Web Based System for Radio Planning in WRAP 66 Microsoft AJAX Application Architecture http msdn microsoft com en us magazine cc163363 aspx Last accessed 17 Dec 2009 OpenLayers http openlayers org Last accessed 17 Dec 2009 Paulson L D Building rich web applications with Ajax IEEE JNL Computer Vo lume 38 Issue 10 Oct 2005 Page s 14 17 Digital Object Identifier 10 1109 MC 2005 330 PhysicalGeography net GLOSSARY OF TERMS http www physicalgeography net glossary html Last accessed 17 Dec 2009 Rolf Jakoby Georg Bauer Vehicular Technology Conference 2008 VTC 2008 Fall IEEE 68th A simple Prediction Model for Line of Sight Coverage in urban scenario Ruzicka Z Hanus S IEEE Radio Network Dimensioning in UMTS Network Planning Process Applied Electromagnetics and Communications 2005 ICECom 2005 18th International Conference on 12 14 Oct 2005 Page s 1 4 Digital Object Identifier 0 1109 ICECOM 2005 204957 Security focus http www securityfocus com infocus 1765 Last accessed 17 Dec 2009 Shah Shreeraj Web 2 0 Security Defending Ajax RIA and SOA Course Technology Released 2007 ISBN 9781584505501 9781584506065 WRAP International AB WRAP User s manual Web Based System for Radio Planning in WRAP 67 9 Appendix A List of Abbreviation 2D 3D AGL AJAX API ASL ASP CSS DB DLL DN
11. Coverage extends 3 generate XML String Coverage Calculation Web System include Scenario The use case shown in Figure 3 5 shows the necessary design parameters for the web based WRAP coverage calculation and its result The command issues from the users in order to calculate coverage are converted to respective XML strings which will be treated as input for WRAP API server see 3 2 2 The client can also view different result generated by coverage calculations such as coverage presentation information related to coverage and layout of coverage on the map 3 2 1 4 Admin to System interaction Administrator of the system is super user who has the right to administrate another users as well as system tools The administrator has some special permission control users and sys tem Web Based System for Radio Planning in WRAP 36 Admin Panel of User details SEA Web System S user project include Administrator modify user data Application view edit Help topics Boardcaste message Figure 3 6 Administrator to System interaction However the administrator cannot perform any calculation The valid administrator can get access to the admin panel Administrator can view edit user details and he she may also change the data of the users In similar way she he can create edit help topics broadcast message etc 3 2 2 WRAP API
12. Coverage Planning and Site selection Quality Related e Coverage Prediction e Coverage Optimization e Capacity Planning Optimization QoS enhancement Network improvement Figure 2 1 Radio network planning process 2 1 1 Requirements In requirement stage operator s requirements on coverage capacity and quality of service are gathered Web Based System for Radio Planning in WRAP 6 2 1 2 Dimensioning Dimensioning phase must cover overall requirements provided by operator The process includes link budget calculation coverage analysis and finally estimation on the amount of base stations hardware and sites equipments and core network elements 5 2 1 3 Planning Planning of coverage and capacity should include site selection base station configuration analysis of capacity coverage and quality Link budgets are effective in showing the funda mental trends and principals before going in to detailed planning Link budgets are asso ciated with service coverage and capacity analysis See section 2 2 for details on Link budg et Coverage planning process as shown in Figure 2 2 is divided into three main steps It uses dimensioning results that gives cost effective and high quality service radio network Configuration planning Coverage planning Link Budget Calculation Measurements Propagation Coverage Prediction Figure 2 2 The coverage planning process 9 Both configuration and coverage planning util
13. Software Framework A software framework provides powerful tools to develop flexible and less error prone soft ware applications in a more efficient way It often helps speed up the development process by providing necessary functionality That includes user role management data access cach ing and others Framework help on focusing on more important details of design and project management by justifying the need to reuse for common development needs For web there are both serv er side and client side framework There are several popular frameworks for server side languages like CakePHP for PHP spring for JAVA NET for C etc For client side the framework like jQuery Prototype ASP NET AjaxToolkit for JavaScript blueprint for CSS and OpenLayers Openlayers is JavaScript library for displaying map in web browsers It is built for rich web based geographic applications OpenLayers is free and developed by Open Source Software community 17 2 5 Internet and sockets Internet is global system of interconnection between computer networks using standard in ternet protocol suit TCP IP It serves billions of users worldwide Sockets are interface between application process and transport layer Application process can send receive message from another application process and vice versa through sockets There are many types of socket such as Internet Sockets Unix Sockets X 25 sockets etc Internet Sockets are characterized by IP a
14. Workspaces or projects are basic working block for any types of calculations in WRAP The projects files in WRAP are in wpr format The user can open project file with valid version of WRAP e Presentation Tools Viewers Viewers are used to present and analysis results and problems Normally there are map viewers profile viewers etc Map Viewers Map in WRAP can be displayed in 2D as well as in 3D Map with geographical data used in WRAP Many geographical settings for map are available in WRAP Figure 2 13 below shows different map that WRAP can display with projection of se lected geoclass that are global settings for all opened project National grid is a system of geographic grid references commonly used in nations such as Sweden etc different from using latitude and longitude Orthographic Projection is map projection that presents the Earth s surface in two dimensions as if it were being observed from a great distance in space Distortion of areas and angles becomes greater as you move from the center of the projection to its edges 19 Great circle True centre distance azimuthal An imaginary circle drawn on the Earth s surface that has its center synchronizes to the center of the planet The equator is a great circle 19 Mercator projection is map projection system that presents true compass direction Distortion is manifested in terms of area Area distortion makes continents in the middle and high la
15. complexity of radio planning by proving online access to the users from any location and environment one can access his her calculation tools to present and analyze radio planning process Currently the system works for the coverage calculations WRAP software contributes many years on developing user friendly radio and spectrum planning tool though it is expensive for small organizations on this end web based WRAP has planned to benefit them The web based solution is developed by keeping these things in mind and to make market of the WRAP web for those that only requires calculating in lower scale and won t need to use all the complex functionality of the full version of WRAP and even for the armatures and small companies This thesis proposes development of web based radio planning tool in WRAP To convert given requirements to desired output software engineering process such as analysis design and implementation are followed in each step and the development is getting closer to solu tion Finally at implementation process implemented the idea that is discovered during anal ysis and design to get working solution The evaluation process validates the system s per formance as well as its usage as compared to the given requirements At conclusion for very simple radio planning web based WRAP provides all necessary function and yet with good performance 7 2 Future work In future the current web based WRAP application we can add more c
16. discrete portion of the radio communications spectrum generally below the 3 GHz range The radio communica tion spectrum is a resource that is made up of radio communication waves that operate below 3000 GHz though most of communication uses spectrum below 400 GHz 12 In coming years the number of users around the world will grow extensively leading to huge expansion in demand for services using the radio frequency spectrum 1 1 2 The WRAP software WRAP software is a spectrum management and radio planning network software developed by WRAP International AB Link ping Sweden WRAP software includes various technical calculations that are implemented to achieve design and analysis tasks with the purpose of achieving the desired quality of service within radio communication networks navigation 1 Web Based System for Radio Planning in WRAP 2 and radar systems Important tasks of the program are to calculate performance of micro wave links and coverage areas for radio networks operators and radio planners both in Swe den and internationally 1 3 Problem statement From the current growth of radio frequency users the demand in frequency spectrum gets higher To achieve efficient coverage and capacity with minimum cost and safety huge in vestment has to be made on building radio infrastructure Automated radio planning tools help user to plan optimized solution for building radio infrastructure Today many operating platforms
17. e Antenna pat e Antenna tern height e Polarization e Azimuth e Antenna tilt Neighbor cells e Position e Max antenna e Occupied e Sensitivity interference e Frequency gain bandwidth e Required S I limited e Tx EIRP e Antenna pat eFrequency s IF bandwidth e Antenna tern characteristics e Frequency cha height e Polarization not needed if racteristics not e Azimuth only co needed if only e Antenna tilt channels to be co channels to considered be considered Adjacent cell e Position e Max antenna e Occupied e Sensitivity Coverage S I e Frequency gain bandwidth e Required S I e Tx EIRP e Antenna pat e Frequency e F bandwidth e Antenna tern characteristics e Frequency cha height e Polarization racteristics not e Azimuth needed if only e Antenna tilt co channels to be considered Table 2 1 Coverage calculation models and parameters 24 Web Based System for Radio Planning in WRAP 23 There are different calculation resolutions used in WRAP which is defined in table below Label Description Very Low 625 area calculation points or 25 line calculation points For very rough estimates or calculations involving an extremely large number of transmitters in a smaller area Low 2 500 area calculation points or 50 line calculation points For rough estimates Average 10 000 area calculation points or 100 line calculation points Default setting which is adequate for most purposes
18. find it later see Figure 15 8 o Help topics The user can view help topics added by the administrator see Figure 15 11 o Log off This is used to log off from the system The details on this section are discussed at user manual see section 15 1 Web Based System for Radio Planning in WRAP 55 5 2 Calculation The Figure 5 3 below shows the working process used for calculation in web based WRAP The logged user has access to the calculation interface The user can make visual tools to send command parameters which will be converted in to XML strings described in section 4 3 5 After WRAP API server process the command it will send back result in XML format than that will present in to browser as output Figure 3 8 gives the view of result generated for coverage calculation Web server Server Connect to server Transfer command in 1 form of XML strings esponse message 1n XML string Disconnect from server Figure 5 3 Working of WRAP web calculator system Web Based System for Radio Planning in WRAP 56 Figure 5 4 visually presented result of Coverage calculation in Web based WRAP 5 2 1 Coverage planning calculation As per algorithm discussed in design section 3 2 1 3 in web based WRAP Figure 5 5 shows the implemented output of placing markers on the map Markers and Coordinates Map Coordinates Letonia 15E384204 Longitude 58N360072 Marker Name
19. login in order to get access on the system However there are respective control panels for different kinds of users A control panel is control page with tools and configurations that can be used to configure settings and access tools that are re quired 4 2 1 Client system in Web based WRAP Web based WRAP system has two types of users as discussed in section 4 2 Client of the system is a user that has access to web based WRAP The design of client is shown in Fig ure 4 3 All users can access public page If a user wants to get access to the WRAP system he she has to register to gain the permission to access the panel Valid users can always get access to client panel from that he she can change his personal settings like changing pass word editing personal details checking logs etc The logged user can access personal calculation Besides this functionality users must be able to view his personal help topics and create or edit logs Web Based System for Radio Planning in WRAP Registration Public page i Login Personal Settings Client panel Change Password View Profile Log Saved Projects View Help Topics Create Edit Logs Figure 4 3 Design of Clients system of Web based WRAP 43 Web Based System for Radio Planning in WRAP 44 4 2 2 Administrator section The admin panel can be accessed with valid administrative login credentials Admin can view users list From user list he she has access to cha
20. management sss 1 1 2 The WRAP software ccccccceeccceeeeeessncaeeeeeeeeeeesaaaaaeeeeeeeeeeesaaaaeeeeeteeeea 1 1 3 Problemistatement o x settee tie eae tien AER 2 1 4 Thesis Organization anre tette tete tete eee Tete HERE RE 4 2 Background cer DD 5 2 1 Radio planning process ee eee ehe ree riesen irae us 5 2 1 1 Regullermiente mene n en e nu eB BEES 5 2 1 2 DIMENSIONE oee ae e E e ER nnn nn nnne nnns nnns annes 6 2 1 3 ED oss E E E E sade a E E a 6 2 1 4 Optimization i E EEE EE OERE EEEE G 7 2 2 Link budget sss sees 7 2 2 1 Geographical Environment cesses eene nnns 9 2 2 2 Clearance eee eerte erret reperire iners 12 2 3 WRAP e R T enne nnnm nennen nnne nnne nnn 13 2 3 1 OVERVIEW Sys asusosespseeneeeneeeneeeneeRne Eee 13 2 3 2 Coverage Calculations in WRAP sseeeeeeeseeeeeeen nnne 18 2 3 3 WRAP APF SETVE i eese eie iei einn cao case once n eee EVOKE eh eheu ehe 23 2 4 Software Framework cesses enne 24 2 5 Internet and sockets sese eee sees esen 24 2 6 Web based systelm saei eet ta eventos RO ERA es 24 2 6 1 Rich Internet Application RIA 24 2 6 2 Web2 0 E AN esee ee 27 2 6 3 Web 3 O fa aena REDI DIRE 28 2 6 4 Web Servet Sininen a e AR A a R E aE Eas 28 3 Requirement and Analysis eeeeeseesssssseeee nnne nnns 31 3 1 3 1 1 3 1 3 3 2 3 2 1 Web Based System for Radio Planning in WRAP Requirements terere
21. new marker Qaae Marker L AUT b AE j KR Enew marker 15E3842 04 58N3600 72 OTxORx P WS LS CS station p x Delete Marker Erie 7s I Marker tools Lat Tx Rx 9 Ae 1 bia i c Marker on the map EK Figure 5 5 Markers for Calculation The markers are vector diagram which will be located on the map as per command issued by the user To generate marker user must click on map first that will give the coordinates of the clicked point that will be used to set marker on click of add marker button shown as on Figure 5 5 Transmitter Tx or Receiver Rx can be placed on the selected marker Web Based System for Radio Planning in WRAP 57 Station lists are populated by sending get station API message to the WRAP server which in response sends the list of stations as per the conditions set by the client The client can choose to list all available stations or list all stations on selected coverage area that he has selected in map Similarly he can create his own station by modifying template stations data see Figure 15 21 Coverage Results Coverage calculation is done with wizard one example of wizard cycle is as shown in Fig ure 15 20 Result for the calculations is shown in Figure 15 21 The coverage wizards are implemented using jQuery The details on this section are discussed at user manual see section 5 2 5 3 System for Administrator Admin users are those users who have special permissi
22. of solutions lot easier than the past Many NET functionalities are facilitated via XML web services Web services are small reusable applications or codes written in XML that allows data communication with two components of the programs ASP NET is a unified Web development model that includes the services necessary for building enterprise class web applications with a minimum of coding During this thesis several components and tools were developed to make web based WRAP perform better out of them some were very small design elements where as other are very more complete systems The Implementation consists of following parts 10 ASP NET www asp net 46 Web Based System for Radio Planning in WRAP 47 4 3 1 Setting up environment for Implementation e Installing and configuring IIS 7 0 e Installing Visual studio 2008 professional e Installing MS SQL server 2008 create required database e Create new solution in Visual Studio 2008 configure database connection e Download Openlayers jQuery Ajaxtoolkit and other libraries and configure them inside added project e Download and install Silverlight e Download and install GIMP 4 3 2 Implementation of User Interfaces UI User interface is normally front impression to the client There are four different interfaces for this application such as public interface client interface administrator interface and cal culation interface Various web development components s
23. on top menu of application click on File gt new Project for new project File gt Open Project to open project and File gt Save project to save the project 85 Web Based System for Radio Planning in WRAP 86 Wrap Web Client 2009 Mozilla Firefox File Edit View History Bookmarks Tools Help o QU X A http 192168 101 117 map cpanel NyMap aspx B Most Visited ff Getting Started Latest Headlines http localhost81 we x H Figure 15 13 Interface to open WRAP projects o Map view You can switch map view among 2D map Profile view and 3D map Wrap Web Client 2009 Mozilla Firefox Eile Edit View History Bookmarks Tools Help ay e x A LL http 192 168 101 117 map cpanel NyMap aspx Most Visited fj Getting Started A Latest Headlines http localhosti wes L Wrap Web Client 2009 28 Mozilla Firefox startsida Wo n UPS Tools Stations List kl amp create New Station Rae ETT e zl Profile Figure 15 14 Map view type p Map settings Apart from view there are many map databases that we can choose For map setting in menu click View Map Settings A dialog will appear as shown in Figure 15 15 We can choose the background type to show in map viewer Apart from that we can select vector overlays as well as we can see image layers for that particular map Web Based System for Radio Planning in WRAP 87 Map Setti
24. system can add and alter user permissions System parameters as well as other managerial issues o Web based WRAP at the initial phase does not require covering all functionality How ever it should be open for extensions Web Based System for Radio Planning in WRAP 32 o For security of system it must have distinct public and private access areas All private areas must be protected and can be accessible for authorized users only o Passwords and other sensitive data must not be stored on configuration file 3 1 3 Technology o The user must be able to use his her computer with popular browsers like Internet Ex plorer IE and Firefox FF to access Web based WRAP o Web system must be able to communicate with WRAP API server through sockets o API messages are only way to communicate with the API server via sockets AII the commands need to be issued in form of XML strings to the API servers 3 2 Analysis In this section we will analyze the requirements in order to develop detailed concept of the system Web Client API server Client User Web Admin Figure 3 1 Web Based system users Figure 3 1 shows possible types of user for the web based WRAP and access are on the web Client has access to web client which needs to communicate with API server in order to make web application able to calculate Similarly Admin user needs to access admin part of web only Web Based System for Radio Planning in
25. the file name will be in format userID projectname wpr this format applies for both database and WRAP API server but in web server only file name will be saved Web services are used to save file in database by verifying correct user and for WRAP server API message to save file with given name is sent In similar way when we retrieve project or open project the user will be able to see the list of project that he has access He can open the file of his choice from the list which will send command to API server to open file of select name in list Web Based System for Radio Planning in WRAP 52 API Command to save wpr in WRAP Server Retrive projects and its contents Save Retrive Project list gt Web services web server WRAP API server Figure 4 8 Architecture to retrieve project and its current contents for logged users 4 3 9 Security in web based WRAP Authentication and Authorization is one of the major parts of securities that are imple mented in web based WRAP Authentication will filter unwanted users by identifying valid use where as authorization will provide access right to valid clients In web based WRAP valid user posses login key to obtain login key user need to register him followed by signup To filter web bots a user who is aimed to get access to WRAP need to register which will give him a PIN code in his email which can be used for signup process Input validation help to protect system form inval
26. to be executed in WRAP API server Web interface must be able connect to the WRAP API server in order to send receive data API messages which are used to execute commands at remote API serv er as well as to gather result from remote server Web Based System for Radio Planning in WRAP 3 Web interface Send Receive data WRAP API server calculations Authorized Users Figure 1 1 Conceptual block diagram of web based WRAP The system is supposed to be used by many users at the same time using web interface The users will send their calculation parameters through web interface which will be fed into the WRAP API servers that are responsible for performing calculations that are sent through the authorized web clients The web application needs to be secure and able to serve multiple users with different level of access permissions The user shall be able to browse different tools according to permis sion he she has subscribed for The calculations will be in format of simple web forms Web Based System for Radio Planning in WRAP 1 4 Thesis Organization The thesis is organized as follows Chapter 2 Background this section provides an overview of the background materials related to the thesis Chapter 3 Requirement and Analysis this section focuses on software engineering process for web based WRAP This part defines requirements followed by its analysis Chapter 4 Design and Implementation this secti
27. 3 7 Working of WRAP API server sees eee mener nnne nennen nnne 37 Figure 3 6 API servers to web server interaction sss sese eee eee 38 Figure 3 9 Browser to WRAP API server communication esses eene 39 Figure 4 1 Architecture of Web based WRAP web client seen 41 Figure 4 2 Web Based WRAP Users eese nennen eene nme enne nennen ener 42 Figure 4 3 Design of Clients system of Web based WRAP sse eee 43 Figure 4 4 Design of Administrator in Web Based WRAP 44 Figure 4 5 System concept of web based WRAP for calculation eene 45 Figure 4 6 Security design for web based WRAP 46 Figure 4 7 UI of calculator in web based wrap sese enne 48 Figure 4 6 Architecture to retrieve project and its current contents for logged users 52 Figure 5 1 User registration and sign up HOW sese sese 53 Figure 5 2 User login at WRAP web sese eee sees 54 Figure 5 3 Working of WRAP web calculator system eese 55 Figure 5 4 visually presented result of Coverage calculation in Web based WRAP 56 Figure 5 5 Markers for Calculation eese eene nennen nnne eene nennen 56 Fipure 2 0 Administrative 1091H eere mee eri e rem e e re e nm ees 57 69 Web Based System for Radio Planning in WRAP 70 Figure 6 1 Performance analysis for different WRAP Versions sese 61 Figure 13 1 Relation database diagram for Client user management
28. 30 50 100 Desktop version Time in seconds 1 87 2 12 4 18 5 46 14 98 Web Version Time in seconds 2 3 2 26 4 7 54 24 6 Table 6 1 Performance comparison between Desktop and web based WRAP The graph from Table 6 1 is shown in Figure 6 1 We realized for smaller calculation areas both desktop version and web based version of WRAP takes almost similar time to calculate However when radius of coverage area is increased the gap between desktop version and web version of WRAP also increased Web Based System for Radio Planning in WRAP 61 Desktop version g 9 2 9 E Web Version 60 80 Radius in KM Figure 6 1 Performance analysis for different WRAP Versions The difference of execution time for calculation increases with the increase in coverage area Web based system need to connect remote WRAP API server to perform calculation whereas the desktop version of WRAP calculates locally this makes web based WRAP perform slower than desktop version The outcome on the web based WRAP will get slower when the volume of data generated at calculation process are large However this will not affect the result of the system Web Based System for Radio Planning in WRAP 62 Web Based System for Radio Planning in WRAP 7 Conclusion and future work 7 1 Conclusion Radio communication is growing rapidly along with additional features and complexities in design The web based WRAP aims to participate in reducing
29. 4 5 1 2 Client Login After registration and sign up user can access to the client panel In order to access the client panel the user should use valid login username and password the login interface is as shown in Figure 5 2 UserName Password Sign In Is not member Register Here Figure 5 2 User login at WRAP web 5 1 3 Client panel Client login is the gate way to access client panel see Figure 15 5 Client panel is main interface which act as hub of information and tools required to manage personal information as well as project The following tasks are possible from the client panel o Profile The profile is personal information of the logged users The user can also change his details from this page see Figure 15 7 o Log records The log records are the list of all recorded notes from the logged user This can help him to leave notes so that he can remember what he was doing last time The notes can be saved in HTML format as well see Figure 15 6 o Change password The logged user can change his password as per his requirement see Figure 15 6 o Tools The user can use various calculations from this panel For this thesis only part of coverage calculations between links is implemented We will evaluate this part further at section 5 2 Projects The user can view all his saved projects see Figure 15 10 Write notes the user can write notes and save them with suitable title so that he can sort and
30. AB Link ping Sweden E My Notes News Message Notes 9 24 2009 12 00 00 AM the title of the society 9 24 2009 12 00 00 AM Writing notes on Coverage Calculation in Pinkoping 9 24 2009 12 00 00 AM the computation in WRAP age 9 24 2009 12 00 00 AM Write it D Message from Administrator 11 3 2009 9 51 50 AM Testing of wrap 10 30 2009 2 11 47 PM Documentation of WRAP web will be avilable soon 10 30 2009 2 05 25 PM Web version of WRAP is ready to roll on road Figure 15 5 Client Panel Web Based System for Radio Planning in WRAP 81 g To change password click My WRAP Change password on the menu choose new password and click on submit Welcome nabinrs gmail com Logout DAD zwi INTERHATIONAL you can Change your Password here User nabinrs gmail com Password Help Topics New Password Repeat Password 1 Cancel Figure 15 6 Change Password h To view profile click on profile on the menu at the left side My WRAP gt Profile You can also edit your profile Click on edit at the bottom of the pro file description and follow the instruction Welcome nabinrs gmail com Logout WRAP auf INTERNATIONAL Your Profile company_name wrap Link ping contact_person Nabin shakya address Prasbolatsgatan 19A country Nepal 123 telephone 482208017 email nabinrs gmail com order_type 1 remarks this is edited remarks Edit Figure 15 7 Client Profile Web Bas
31. AP 5 Configurations Help Topics Log off WRAP Fi INTERNATIONAL You are logged in as admin Title Description Bie EX S D 1 SiT aw Save help topic WRAP International AB 2009 Tanneforsgatan 8 SE 582 24 Link ping Sweden Phone 46 13 473 45 00 info wrap se Figure 15 25 Add Help Topics Click on Log off to log out from the system 94
32. Engineering services The development of the product WRAP started in 1991 and is a constantly ongoing process WRAP Version 4 2 6 The company WRAP International AB was founded in 2007 to expand the business opportunities for WRAP through All you need for Radio increasing focus and concentration on product development marketing and sales activities Planning The core personnel through the years of development of WRAP since 1991 are still employed by WRAP International We provide advanced cost efficient software expert consulting and training services to Radio Network Operators including FM TV Broadcasting operators Public Authorities and Armed Forces Register for fo a Ez eb client 2008 WRAP International AB Tanneforsgatan 8 SE 582 24 Link ping Sweden Phone 46 13 473 45 00 sates Figure 15 1 web based WRAP Client Start page be hidden by click the same link 77 Web Based System for Radio Planning in WRAP 78 UserName Enter your Email Address Password Is not member Register Here mag INTERNATIONAL Figure 15 2 Client Login Process Input valid username and password to the access client panel If you don t have valid username and password you can get one by registering To register click on Register here at the bottom of the login box Fill the data on the page shown in Figure 15 3 and click on submit register You must give valid data and email The sign up
33. However path cannot continue in straight line due to refractivity of atmosphere Such diffracted path lengths create Fresnel zones Fresnel zone in radio communication is one of the theoretically infinite concentric ellipso ids of revolution which define volumes in the radiation pattern of a usually circular aper ture 6 The cross sectional view of first Fresnel zone is circular and following Fresnel zones are ring shaped in cross section and concentric with the first As shown in Figure 2 10 below the Fresnel zone form elliptically shaped solid of revolution around transmitter receiver propagation path Where distances d and d are in kilometers n is ellipsoid r is radius of ellipsoid n1 Web Based System for Radio Planning in WRAP A Receiver Transmitter NEL Propagation path can be curve Figure 2 10 Fresnel zone around the propagation At least 60 percent of the first Fresnel zone needs to be clear of obstructions 2 3 WRAP Software WRAP is software for spectrum management and radio planning developed by WRAP Inter national AB Link ping Sweden 2 3 1 Overview WRAP software has capacity to operate in standalone environment as well as in Client Server network environment This makes it accessible as multi user application from geographically separated locations The basic organization of WRAP software with centra lized database is shown in Figure 2 11 Clients located in different locations are co
34. Institutionen f r datavetenskap Department of Computer and Information Science Final thesis Web Based System for Radio Planning in WRAP by Nabin Raj Shakya LIU IDA LITH EX A 09 066 SE 2009 12 07 Linkopings universitet Department of Computer and Information Science Link pings universitet Link pings universitet 581 83 Link ping Sweden SE 581 83 Link ping Sweden Final Thesis Web Based System for Radio Planning in WRAP by Nabin Raj Shakya LIU IDA LITH EX A 09 066 SE 2009 12 07 Supervisor Patrick Lambrix IDA Link pings Universitet Anders Thomasson UIf Rydberg WRAP International AB Link ping Examiner Patrick Lambrix IDA Link pings Universitet Presentation Date 2009 12 17 Publishing Date Electronic version 2009 12 22 tion Science Department and Division Department of Computer and Informa te g n Nes yn Link pings universitet Language X English ____ Other specify below Type of Publication Licentiate thesis X Degree thesis ISBN Licentiate thesis ISRN LIU IDA LITH EX A 09 066 SE Thesis C level Thesis D level Title of series Licentiate thesis Series number ISSN Licentiate thesis Number of Pages Report 94 Other specify below URL Electronic Version http urn kb se resolve urn nbn se liu diva 52443 Publication Title Web based system for radio planning in WRAP Author s S
35. ML as the encoding http www xmlrpc com 7 It describe an architecture style of networked systems http www xfront com REST Web Services html Web Based System for Radio Planning in WRAP 29 Apache web server software is open source HTTP server this plays vital role for making World Wide Web WWW popular It supports various features and implemented many modules to increase the functionality It supports server side programming languages like PHP Python Tcl and Perl IIS Internet Information Services is also web server software created by Microsoft for use with Microsoft windows It supports server side programming language like ASP ASP NET and PHP etc Security in IIS for older versions of IIS there are many issues related to vulnerability For example the vulnerability problem such as defined on CA 2001 13 gives buffer overflow in indexing service DLL which gives attacker control of the web server As a result of vul nerabilities in IIS Microsoft has completely redesigned IIS in order to make it secure 22 5 http www cert org advisories CA 2001 13 html Buffer overflow occurs when a process tries to store data on buffer more than its actual capacity Buffer over flow is one of the important issues in software security Web Based System for Radio Planning in WRAP 30 Web Based System for Radio Planning in WRAP 31 3 Requirement and Analysis In this chapter we will discuss requirement
36. S EIRP EM FF GIS GHz HF HTML HTTP ID IE IEEE IIS IT JS JSON MHz Two Dimensioned Three Dimensioned Above Ground Level Asynchronous JavaScript and XML Application programming interface Above Sea Level Active Server Pages Cascaded Style Sheet Database Dynamic Linked Library Domain Name Server Effective Isotropically Radiated Power ElectroMagnetic Fire Fox Geographical Information System Giga Hertz High Frequency Hyper Text Markup Language HyperText Transfer Protocol Identification Internet Explorer Institute of Electrical and Electronics Engineers Internet Information Services Information Technology JavaScript JavaScript Object Notation Mega Hertz MS PIN QoS REST RF RIA Rx S I SOA SQL Tx UI XAML XHTML XML Web Based System for Radio Planning in WRAP 68 Microsoft Personal Identification Number Quality of Service Representational State Transfer Radio Frequency Rich Internet Applications Receivers Signal Interference Service Oriented Architecture Structured Query Language Transmitter Antenna User Interface Extensible Application Markup Language Extensible HyperText Markup Language eXtensible Markup Language Web Based System for Radio Planning in WRAP 10 Appendix B List of Figures Figure 1 1 Conceptual block diagram of web based WRAP sese 3 Figure 2 1 Radio network planning process enne nnne enne nennen seen nnn 5 Figure 2 2 The coverage planning
37. WRAP 33 3 2 1 Use case scenario 3 2 1 1 Client registration process The main purpose of this project is establishing effective interaction between users and Web system The users clients of the system are valid users of the system which can access the system Registration Send Confirmation Client di z 2 include web system users Figure 3 2 Client registration process Scenario If user is new or if user does not have valid login parameters they must register On completion of registration the user will get confirmation in his her email inbox That gives access to sign up process On signing up user can create desired password to access the system 3 2 1 2 Logged client interaction with web system SDN include i ge E Client panel web system Client Controls C resus gt wv include Coverage n z z A s Calculation This section will be described in seperate use case Calculation Figure 3 3 logged Client interaction with web system Web Based System for Radio Planning in WRAP 34 Scenario A logged user can access client panel and that gives user access to change pass word write view notes or logs view help topics and perform allowed calculations The user may logout anytime 3 2 1 3 Calculation Calculation module is major part of the thesis A user of the system needs good and clear user interface for calculation Out of many calculation tools in WRAP for web based system
38. a zi Methods AdminMessage N Authenticate 7 amp CheckLoginUser 7 CheckPinValidity 79 Insert 79 Save SignUp Update Figure 14 1 Class Diagram of Admin and Client System Web Based System for Radio Planning in WRAP 76 Web Based System for Radio Planning in WRAP 15 Appendix G User Manual 15 1 Web client a b Click on Login at the top left of this page to view the login box The login box can Open a browser enter the link of wrap online portal the following screen will appear L lt TTS WRAP INTERNATIONAL Welcome to WRAP International WRAP International is an expert in advanced models of computation and software tools for the planning optimisation and operation of radio networks Our origins lie within the Saab group where we have derived an experience and knowledge base that enables us to offer products that satisfy the needs and requirements of the market s most demanding customers Saab serves the global market with a broad range of world leading products from military defence to civil security As an independent enterprise WRAP International continues that tradition of quality and provision of specialist competence to a wider market where we meet new demands with refined and newly developed products WRAP International offers the following for planning analysis and optimization of radio communication e A wide range of products for different applications e Consultancy Services e Radio
39. alculations functions such as capacity calculation frequency assignment WiMAX calculation etc to make appli cation more useful for all types of users The application can get mature with the implemen tation of new technologies which help WRAP to perform better and make secure We can also add more power to WRAP by making JavaScript API which will help to create customized WRAP calculation interfaces with simple JavaScript functions and removes complex task such as converting visual command to XML strings Secondly we can also develop web services which can be used by client to integrate WRAP calculation in their web system This will help client to develop their own radio planning application using WRAP API server and Web Services 63 Web Based System for Radio Planning in WRAP 64 Web Based System for Radio Planning in WRAP 65 8 References 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Bohlin Erik Preissel Brigette How Free is the Radio Spectrum Emerald Group Publishing Limited 2006 ISBN 9781845449506 9781845449513 CISION What Web 3 0 will mean to you July 2009 Dictionary com http dictionary reference com browse base 64 Last accessed 17 Dec 2009 Harry R Anderson Fixed Broadband Wireless System Design John Wiley amp Sons Ltd ISBN 0 470 84438 8 Holma Harri Antti WCDMA for UMTS Radio Access for Third Generation Mo bile C
40. alter user settings as well as stuffs like managing help topics alert messages etc 6 3 Evaluation of Tools The web based WRAP system runs well in popular browsers like Firefox and Internet Ex plorer However it requires the user to install Silverlight plug in on the browser The com munication between browser and WRAP API server are required to get desired input and output interaction These input and output strings are in XML string format but the users do not need to see them directly The system will convert API messages into respective visual commands and presentations Web Based System for Radio Planning in WRAP 60 6 4 Performance Testing We will take a case of the simple coverage calculation for studying performance between web based WRAP and desktop version of WRAP The following set of values is used as example Example 1 i Station parameters Station GSM base station Position Longitude 15 37 57 21 E Latitude 58 25 44 02 N i Frequency 935 00 MHz Antenna WRAP ND 2 vert EIRP 12 dBW Height AGL 24 m j Azimuth 0 deg Tilt 0 deg S Calculation Required Antenna Height Clearance 0 Resolution Average While calculating coverage for the above example 1 we can see the result of execution tim ing for different radius of circle that defines calculation area The differences in time of ex ecutions are as shown in Table 6 1 Radius km 1 06 10
41. and developments in the field of new technology are going on To adapt to the rapidly changing technological environment the tools for radio planning and spectrum management also need to go mobile by adopting today s most promising inter net technology The task comprises the research and development of system on internet and services for im plementation of calculations in WRAP Thus enabling it to be handled by ordinary users and being able to run it through browsers It is important that the user interface for the web applications is user friendly and simple to use Moreover it should be appealing to users and customers that do not have experience and technical proficiency in radio planning Emphasis shall be placed on the logical and intuitive properties for the user interface seen from a user s perspective and the provision of an attractive user oriented result and report output WRAP system which has evolved through many years realized the need for the system to be accessible to thousands of users in economical price and in various operating platforms For achieving the goal of WRAP the system is should be built as a web based application using latest mind set of RIA Rich Internet Applications Conceptual block diagram of the functionality is shown in Figure 1 1 Through web inter face authorized users could be able to perform calculations WRAP has an API interface which communicates in form of XML strings that defines instructions
42. btained by network measurement device of current network are necessary to optimize performance Performance can be increased with better site and equipment configurations hence tuning up site and equipment configuration helps for better performance Performance analysis can be done with the data provided at the performance measurement These analyses are used to tune network The process is repeated until the satisfactory result is obtained 2 2 Link budget Link budget are one of the essential part in radio network design process The designing process consists of identifying the end points of the link where the transmitter Tx and re Propagation measurement is the process of analyzing areas to tune the radio propagation prediction model Web Based System for Radio Planning in WRAP 9 ceiver Rx are located and examining the details of geographical environment Details on section 2 2 1 On the basis of this information parameters are assumed for a link configura tions and finally calculating the performance of this proposed design to determine if it meets the required service and reliability objects The basic calculation of link performance is known as Link budget 4 The link budget is balance sheet of all gains and losses for the link that is added to arrive at the mean signal level at the receiver This can be used to eva luate availability of the link under a range of fading mechanisms Link power budget not only deals with the pe
43. d and Implemented according to design to fulfill requirement of the system 4 1 System Architecture The architecture of the Web based WRAP is as shown in Figure 4 1 Web clients are normal internet users who uses browser and have access to Web based WRAP system Figure 4 1 Architecture of Web based WRAP web client All valid users must have their own login key which gives them access to the system The users can explore his personal section with access to permitted calculations performed in WRAP API server When user tries to access calculation the web interfaces of WRAP are connected to the WRAP API server via sockets using DNS The system will provide user access to calcula tion without understanding the complex techniques behind connection between web server and WRAP API server That means for valid users a virtual link between wrap API server and user s browser has been established 4 2 Software Design Web Based System for Radio Planning in WRAP 42 In design part we will analyze how different part of system will work in order to get perfec tions in system as per the requirements If Client Client Panel If Administrator Administrator Panel Personal settings User Administration Calculations Settings amp reports Figure 4 2 Web Based WRAP Users There are basically two types of users in web based WRAP such as administrative users and WRAP clients All users need to
44. d determining network elements subjected to various de sign requirements With increasing radio frequencies shortage radio planning jobs are get ting tougher as well as deploying process of large radio networks is very expensive Hence for achieving high resource utilization cautious planning is necessary Moreover maintain ing high degree of accuracy and better optimization in manual designing and planning of network is getting hard This fact triggers the need of a computerized planning tool for future and current networks WRAP software is one example of such software that helps in plan ning networks In this thesis a web based system is developed which makes users able to plan a complex radio network through his personal computer using an internet browser and connecting to WRAP API server through internet 1 1 Radio Communication and Spectrum management Radio waves are radiated through free space by transmitting antenna and can be caught by receiving antenna that is designed for the propagated frequency from the transmitting anten na The process of emitting or receiving radio waves between two or more points is known as radio communication Increasing scope on it attracts many companies and researchers to invest on developing automated tools to get accuracy and optimized solution Radio spectrum means range of frequencies of electromagnetic radiation within which radio communication occurs For example mobile telephones operate in a
45. ddress 4 bytes port number 2 bytes 2 6 Web based system Today millions of people around world using internet in order to share information make new relations and communicate From individuals to professionals to developers all are benefited from to power of internet Rather than using the internet in limited areas such as communication and file sharing it is used for developing complex applications featuring responsive user interfaces and highly interactive capabilities These types of application are called as web applications A technology such as RIA makes web systems more powerful 2 6 1 Rich Internet Application RIA Rich Internet Application RIA encourages developing browser based application Rich Internet Application RIA combines elements of rich user interactivity and client side logic once solely the domain of desktop and client server applications with the distributed compu Open source software is computer software for which source permission to use change and improve the software and to redistribute it in modified or unmodified forms is provided to all users Web Based System for Radio Planning in WRAP 25 ting power of the Internet 23 Various web tools such as Adobe Flash Flex Microsoft Sil verlight and AJAX etc can be used to build RIA We will be discussing about few technolo gies below 2 6 1 1 Technologies for RIA Many platforms can be used to develop RIA However certain platforms have gain pop
46. de nna s 53 Creating new sets eco tens estes este 53 eig n 54 Client parielzz RA RARUS 54 Calculation cette to tte te e e tee e e e eet 55 Coverage planning calculation eee eee eee eee 56 System for Administrator sss sese eee 57 Evaluations RTT o e ree 59 Evaluation of User Interface sss eee 59 Evaluation of Functions nnne 59 Evaluation Ot Reel nennen nnne nnne 59 Performance Testing eee eee eee eee 60 Conclusion and future work sse sese eee 63 Conclusion dE R RRR enne nennen enne nnnm nsns 63 E t re WO ice rt er etre ee e eri een 63 References m ERE ERIS ENSEM INA 65 Appendix A List of Abbreviations sese 67 Appendix B List of Figures eeeee nnns 69 Appendix C List of Tables 71 Appendix D List of code segments eeee 72 Appendix E Relational Database eee 73 Appendix F Class diagrams eeeeee nn 74 Appendix G User Manual eeeeee nnns 77 OIS sR eT ie nenne 77 OI 15T 10T 85 AdministtatoEs o o TR PR Pep 92 vii Web Based System for Radio Planning in WRAP 1 Introduction Radio or Wireless communication is one of the emerging technologies that are advancing as well as getting more challenging Effectiveness and optimized solution for radio communica tion can be achieved with proper planning before deployment Radio network planning is designing of network structure an
47. e component also Web based WRAP use digital map to interact with user visually as shown in Figure 5 4 The web client obtains snapshot of map which are currently active for the wpr project on WRAP server linked with browser through socket The WRAP server returned requested map in form of Base64 encoded im age This part of image is handled by ASP NET web services and presented the image inside map viewer The calculation in the web based system gives number of required inputs that are necessary to perform calculations The necessary parameters mean parameters described in Section 2 3 2 To implement calculation the input are converted into respective XML string commands and invoke that command on the server to get valid result 4 3 6 1 Implementation of OpenLayers for Map or Results veiwing Listing 4 3 shows Openlayers implementation to display base64 image Where Line 231 generates required image data which is valid for displaying image in web browser var imagedat data image jpeg base64 ImgDat var newimg imagedat var options numZoomLevels 2 Jj graphic new OpenLayers Layer Image WRAP API map newimg new OpenLayers Bounds 500 400 500 400 new OpenLayers Size 1000 800 options Ns map removeLayer graphicBase graphic map addLayers graphic graphicBase vectors Listing 4 3 Openlayers Implementation for base64 map display S Base64 A file format using 64 ASCII characters
48. e many advantages and disadvantages involved while im plementing those tools in this section we will try to discuss some of them Web Based System for Radio Planning in WRAP 27 RIA technology like Ajax does not have high interactivity compared to Flash and Silverlight For example in Ajax RIA it is difficult to integrate interactive media and video streaming than Flash and Silverlight The Flash and Silverlight both are rich in multimedia and interaction Silverlight has capaci ty to use rich sets of language for coding where as flash only uses ActionScript In addition Silverlight is supported by ranges of services provided by Microsoft On the other hand flash can perform well equally in windows Linux and Mac systems where as Silverlight need separate plug in called moonlight to run on Linux There are many technologies involved in web based application that makes it user friendly interfaces for web application is possible Web2 0 is one of the examples of richness of web based system 2 6 2 Web 2 0 Web 2 0 is a combination of various technologies These technologies have given new mo mentum to next generation applications The technologies that are part of web 2 0 can cate gorized as in Figure 2 18 Clients Internet Application Environment Browsers PDA or Mobile po TT7 22 2 I Http HTTPS JSON JS objects XML amp custom structures XML RPC REST SOAP Protocols Ot
49. earance Maximum Re e Antenna R quired antenna height height e Frequency Minimum re quired antenna height Composite e Position e Max antenna e Occupied e Sensitivity Coverage S I e Frequency gain bandwidth e Required S I e Tx EIRP e Antenna pat e Frequency eIF bandwidth e Antenna tern characteris e Frequency cha height e Polarization tics not racteristics not e Azimuth needed if on needed if only e Antenna tilt ly co co channels to channels to be considered be consi dered Numberofin e Position e Max antenna e Occupied e Sensitivity terferers e Frequency gain bandwidth e Required S I e Tx EIRP e Antenna pat eFrequency e IF bandwidth e Antenna tern characteristics e Frequency cha height e Polarization not needed if racteristics not e Azimuth only co needed if only 21 Web Based System for Radio Planning in WRAP 22 e Antenna tilt channels to be co channels to considered be considered Worst interferer e Position e Max antenna e Occupied e Sensitivity e Frequency gain bandwidth e Required S I e Tx EIRP e Antenna pat e Frequency eIF bandwidth e Antenna tern characteristics eFrequency cha height e Polarization not needed if racteristics not e Azimuth only co needed if only e Antenna tilt channels to be co channels to considered be considered Neighbor cell e Position e Max antenna e Sensitivity noise limited e Frequency gain e Tx EIRP
50. ed System for Radio Planning in WRAP 82 i You can create logs or notes that will help you to manage your project To write notes or logs click on My Projects Write Notes amp Events You can see the screen shown in Figure 15 6 Enter the title and write notes You can attach any pictures that describe your notes here as well Welcome nabinrs gmail com Logout INTERNATIONAL vou and add your presonal notes and reminder text for next time you login over here My Tools acl Title Becksye T 7 i Elev Figure 15 8 Write log Records Notes j To view logs click on menu My Wrap gt Log Records Web Based System for Radio Planning in WRAP 83 My WRAP Home Profile 9 24 2009 1 notes on Coverage Calculation AM ng Log Records 9 24 2009 12 00 00 AM the computation in WRAP age Details Change Password 9 24 2009 12 00 00 AM Write it Details l User nabinrs gmail com Idea of Coverage F CO_URBANIZED AREAS IS F CO USROUTES Y r co cinis T CO BLOCK POPULATION F COLGNIS_BUILDINGS F CO_RARROADS Notes Logs gecewep PELD STRENGTH IDBU_FIELO Bu Tak Ow A0 dBi e Bldg F CO COUNTIES 395418412 105154100 date 9 24 2009 12 00 00 AM WRAP International AB 2009 Figure 15 9 View Client Log Record k You can view your saved project by click in My Projects gt saved Projects Welcome nabinrs gmail com L
51. essing of individual coverage result to combine them into composite cover age best server or number of server results O 0 0 O o Can store coverage results that are uniquely connected to single station in wrapdb and can be retrieved automatically when making add to project operation in the sta tion in database Coverage tool has several calculation models Table 2 1 shows the parameters needed for coverage tools Type of calcu Station data Antenna data Transmitter Receiver data lation data Transmission e Position Polarization loss e Frequency e Antenna height Field strength e Position e Tx Max an S Power flux den e Frequency tenna gain sity e Tx EIRP e Antenna pat e Antenna tern height e Polarization e Azimuth e Antenna tilt Signal strength Received power e Position e Frequency e Tx EIRP e Antenna height e Max antenna gain e Antenna pat tern e Polarization e If signal strength calcu lated imped ance Web Based System for Radio Planning in WRAP e Azimuth e Antenna tilt e Mobile Max antenna gain e Mobile Pola rization Clearance e Antenna height e Frequency S I e Position e Max antenna e Occupied e Sensitivity Re e Frequency gain bandwidth quired S I e Tx EIRP e Antenna pat frequency IF bandwidth e Antenna tern characteristics frequency cha height e Polarization racteristics e Azimuth e Antenna til
52. f 8 gt lt WRAP xmlns WRAP API 1 0 reference Kalle Anka wrapXMLVer 0 1 gt lt ProjectResult reference Musse Pigg gt lt WRAP gt Listing 3 2 Example of XML string result message 3 2 2 1 Interaction of WRAP API server with web system Web Based System for Radio Planning in WRAP 38 Visual component to XML string parse Validate API message pr pe c include send XML string Generated Result Message Parse Result V include messages x include Web System WRAP API server x x Generate Visual Elements for Result Figure 3 8 API servers to web server interaction Scenario Web based WRAP connects to the remote WRAP API server The web system is UI for WRAP system on internet While client uses web system tools the command needs to be converting in to respective XML stings or API message that will be sent to the WRAP API server via sockets On arrival of XML string from web client it will be processed by API server see section 2 3 3 The API server with generate resulting XML string for the given request The results are parsed and data are converted to the visual elements in web browser 3 2 3 Web techniques It is always challenging to develop system that is operating on one environment to another environment especially from desktop to web because of many differences in architectures and working styles between these two envir
53. gainst these applications have also grown To secure web applications focus either on detec tion and blocking attacks using firewalls or using vulnerability analysis techniques to identi fy security problems is required There are numbers of factors on web that makes analysis of security complex such as use of scripting languages interaction with back end database The security for web based WRAP system can be divided in parts to assure we are checking each possible option to make sys tem secure right from the design process However making system free from all vulnerabili ties is very hard to achieve For security in web based WRAP user needs to be classified as per their access permissions such as public and private users Public users can visit all public parts of system where as private user will have identity for entering the system Passwords which are needed to verify the access will be validate at the web server All the necessary security related validation will be carried out on the server rather than client side Sessions will also help to maintain you identification while browsing the web system Ses sions can help to increase security in web based application by identifying activity of valid users at different parts of the web application 39 Web Based System for Radio Planning in WRAP 40 Web Based System for Radio Planning in WRAP 41 4 Design and Implementation In this section we will discuss how system is designe
54. ght hand side of application New Station New Station Vehicle 2 1 Station Name 101109 GSM Base static Vehicle 2 2 ition E ker Position 15E3842 04 58N3600 72 Vehicle 1 2 Frequency MHz 935 00 Portable 1 S GSM Base station NMT 900 DCS 1800 Wrap Base station analog API Test Template Station API Test Template Station M API Test Template Station Y New Station Previous Ground Level a s imt 109 00 Antenna height a g I m 24 00 Antenna Direction 0 00 EIRP 12 00 9 Antenna WSTD 120 Deg Previous 000 GSM n3 PBase station 101109 GSM Indre station 15E3842 04 58N3600 72 E X Delete E Print Figure 15 18 Create Template Station from Wizard S t Web Based System for Radio Planning in WRAP Select coverage area e Draw desired Polygon on the map using tool 1 as shown in Figure 15 19 e Select the polygon drawn at step i using tool 2 e Follow instructions and you will see the data of polygon that has just drawn on right hand side select that to use that area Markers and Coordinates Map Coordinates Marker Name new marker Latitude 15E584397 Longitude 58N461344 V new marker 15E5841 49 58N4239 94 OTx ORx Figure 15 19 Draw selection Area Coverage Planning e From menu click on Tools gt Coverage calculations For coverage calculation we have to select at least one s
55. h station coordination Traffic Capacity Broadcast Obstruction Manager Satellite Network Coordination HF planning Allotment generation Point to Multipoint Calculator functions Cost and Coverage Optimizer O O O O O O O O O O O O O O OOOO Web Based System for Radio Planning in WRAP 18 Out of much functionality in WRAP for this thesis we will focus on part of coverage calcula tions and necessary facilities to perform Coverage calculation and reporting e Administrative Tools These tools are used for administration of different function such as network management spectrum allocation manager etc in WRAP e Map Data Manager it is stand alone application that is used to create or update Geo graphical database used by WRAP 2 3 2 Coverage Calculations in WRAP Coverage calculation is one of the commonly used tools in WRAP which will be imple mented and analyzed for this thesis purpose In WRAP to calculate coverage user have to define one or more stations and need to define how actual calculation shall be performed All other necessary technical parameters are retrieved from the WRAP database Coverage areas are formed based on transmission loss calculations for each transmitter of interest The received wanted signal level is calculated by accounting of transmitter power transmitter antenna azimuth diagram receiver antenna gain receiver antenna azimuth dia gram filter loss and cable losses For interfering signals the calc
56. hakya Nabin Raj Abstract Radio planning is designing of network structure and elements under various design requirements With the increasing shortage of frequencies radio planning has become more and more complex Hence to maintain accuracy and optimiza tion computerized planning tools are needed This thesis focuses on developing a simplified and economical solution on web for radio planning tool using WRAP the software for spectrum management and radio planning developed by WRAP International AB Link ping Sweden In order to make WRAP calculations available for remote users it had developed APIs The web based WRAP needs to communicate with WRAP API server for exchanging API messages in order to perform calculation To make the sys tem user friendly and interactive latest web technologies are implemented In this thesis we started development process right from requirements gathering to find out required components that need to be analyzed to find suitable web based conversion Further we designed and implemented a software solution The final part is evaluation to discover if requirements are fully implemented or not as well as to gather the performance result of the new system It is found the performance of web based WRAP is equally fast as desktop version for smaller coverage areas whereas for larger coverage areas web based WRAP is slower than desktop version Keywords Web based system Radio planning WRAP RIA Radio Network
57. her Domain Apps Third Party environment Figure 2 18 web 2 0 higher level architecture 23 Client side technologies in web 2 0 have facilitated clients in many ways Web 2 0 has giv en developers components such as Ajax which make application possible to invoke these Web Based System for Radio Planning in WRAP 28 components using JavaScript This makes client application very attractive Similarly flash based application builds RIA that provides a real desktop type feeling in the browser itself Web 2 0 application uses several protocols over HTTP or HTTPS XML information pack ages act as channels between clients and applications or between applications over the inter net Protocols such as SOAP XML RPC and REST are emerging technology for next genera tion applications Web 2 0 applications need to communicate with backend or third party web services and to do so it needs XML envelops running over traditional HTTP HTTPS Browsers are powered to access their domain applications using different calls GET POST HTTP methods are used for exchange simple querystrings between browser and server in Web 1 0 Introduction to Ajax with other technologies such as XML JSON JS array RSS are used in Web2 0 to exchange several information structures All of these structures can be consumed by using scripting languages in browser 23 Web 2 0 application environment has changed dramatically to incorporate this new architec ture
58. hold information in map Web Based System for Radio Planning in WRAP 10 Figure 2 5 Topographic map 21 Digital map can be presented either in raster or vector format Typically raster data are topo graphic and morphographic data as well as it can include other data layers such as building heights traffic density etc Data such as roads borders railways and texts are usually in vec tor format Terrain information is presented in raster format in some planning systems Each pixel has its own terrain height information as shown in Figure 2 6 The value is calculated based on the height model If resolution of map is not good there can be errors in terrain height model 54 52 51 56 50 51 55 50 53 52 54 51 53 52 53 50 Figure 2 6 Raster topographic data terrain height varies between 50 56 m Clutter The land cover and land use information that classify its character at the particular location on the earth can be found in Clutter database Classification such as urban areas forest wa Resolution is the smallest unit on the map that can be presented they are presented on pixel size Web Based System for Radio Planning in WRAP 11 ter and agriculture land are typically found Figure 2 7 is Land coverage map of Ostergot land Sweden generated in WRAP software Figure 2 7 Land coverage map of Ostergotland Sweden As shown in Figure 2 7 which is a raster
59. id data which may cause harm to the sys tem For validation we did range check if that is numeric input field otherwise length check and syntax checking Session management helps to keep record of user s activity Only users having valid session ID can access to different part of the private space of web system In WRAP we used ASP s session management scheme Web Based System for Radio Planning in WRAP 53 5 System Under the system we will analyze the currently built system 5 1 Client System In this section we will discuss about the client system Client for the web based WRAP is a valid user of WRAP 5 1 1 Creating new users As described in design Figure 3 1 the users may be client who may or may not have valid login to access the system Register for new user Email singup link amp PIN Invalid Send PIN code and Link Figure 5 1 User registration and sign up flow Figure 5 1 shows registration process as implemented in web based WRAP AII users or public can access the public pages User can get access to system through registration page see Figure 15 3 with valid data submission system will send him her a four digit alpha numeric verification code with in confirmation of registration in his her email inbox With valid PIN and username users can continue with sign up to set new password and get access to the client panel see Figure 15 4 Signup Client Web Based System for Radio Planning in WRAP 5
60. image where each pixel has only one value that defines property of the pixel In the morphographic layer different land usage classes are presented as different terrain type class see Figure 2 8 ea Urban IES Water IS Forest Figure 2 8 Raster morphographic data Atmospheric and meteorological conditions Web Based System for Radio Planning in WRAP 12 The effects of changing meteorological and atmospheric condition affect the communication performances in radio communication system Atmospheric conditions such as rain and snow all have significant effects on the link per formance Rain attenuation below 10 GHz frequencies are considered insignificant Howev er frequencies above that limit have significant effect Meteorological conditions such as the databases that define the conditions that occur in the land area where radio links is being deployed are necessary for accuracy in planning 2 2 2 Clearance To obtain maximum gain in Link budget transmission system must be planned perfectly Transmission system planning includes identifying the location and height of those Tx and Rx which are chosen in such a way that the obstacles such as buildings mountains etc be tween them must be clear from blocking signals See Figure 2 9 This is called link path clearance Buildings Tx Station Earth Surface Rx Station Figure 2 9 Radio communication Link The objective of network design is to obtain maximum path clearance
61. ing Spectrum planning Coverage planning Web Based System for Radio Planning in WRAP Abstract Radio planning is designing of network structure and elements under various design require ments With the increasing shortage of frequencies radio planning has become more and more complex Hence to maintain accuracy and optimization computerized planning tools are needed This thesis focuses on developing a simplified and economical solution on web for radio planning tool using WRAP the software for spectrum management and radio planning devel oped by WRAP International AB Link ping Sweden In order to make WRAP calculations available for remote users it had developed APIs The web based WRAP needs to communi cate with WRAP API server for exchanging API messages in order to perform calculation To make the system user friendly and interactive latest web technologies are implemented In this thesis we started development process right from requirements gathering to find out required components that need to be analyzed to find suitable web based conversion Further we designed and implemented a software solution The final part is evaluation to discover if requirements are fully implemented or not as well as to gather the performance result of the new system It is found the performance of web based WRAP is equally fast as desktop ver sion for smaller coverage areas whereas for larger coverage areas web based WRAP is slow er than des
62. ive online help on WRAP s web site A WRAP International AB 2009 Tanneforsgatan 8 SE 582 24 Link ping Sweden Phone 46 13 473 45 00 Figure 15 11 Display Help Topics 84 Web Based System for Radio Planning in WRAP 15 2 WRAP calculator m To access calculator from the client panel click My Tools gt coverage calculator That will forward to page shown in Figure 15 12 Eile Edit View History Bookmarks Tools Help QU X 4 http 192168101117 map cpanel NyMap aspx RL Google P 2 Most Visited fe Getting Started A Latest Headlines http localhost 81 we http localhost 4120 L Wrap Web Client 2009 E4 W SS dP G erntt EO 00 E 4 0000 00 E60000 00 E80000 00 100000 00 12 0000 00 14 0000 00 16 0000 00 18 0000 00 20 0000 00 2200000077 4 01 7D 0 0 Markers and Coordinates 62 0000 00 N guine m D Selected Map Area O OoOO User nabinrsgmailcom email nabii il com Project nabin_Untitle LoginTime 1122112839771 60 0000 00 N 600000 0 Logout 9 Help Topics 1 WRAP web help topics on each tools can be found at end 3 of each tools 58 0000 00 N 580000 0t 56 0000 00 N 56 0000 01 54 0000 00 N 54 0000 01 Done 60 Figure 15 12 Interface of Web based WRAP calculator n Projects Files in WRAP are arranged as projects You can open saved projects create new projects and save them as well To access project
63. ize dimensioning results and occurs in en closed area or region known as calculation area where effects of radio waves have to be calculated Configuration planning or network configurations are based on link budget analysis see section 2 2 to minimize the number of base stations sites This is done prior to the coverage planning because it helps to obtain high quality radio network Coverage planning has to be done over certain coverage area so that we can optimize the base station s location for the given configuration The propagation of radio wave can have obstacles on the environment such as buildings hills etc see section 2 2 1 Hence to achieve good coverage configuration of base station and location must be chose carefully so that obstacles may reduce Web Based System for Radio Planning in WRAP 7 After coverage area and radio propagation environment have been analyzed and propagation measurement is taken according to that prediction model is tuned These tuning gives accu racy for coverage prediction 2 1 4 Optimization Network optimization is process to improve overall network quality to ensure network re sources are used efficiently For good coverage simultaneous optimization capacity and max imizing quality is needed ey Performance Performance analysis measurement Network Tuning Figure 2 3 Network Optimization process Optimization process is shown in Figure 2 3 Performance measurement data o
64. ktop version Keywords Web based system Radio planning WRAP RIA Radio Networking Spectrum planning Coverage planning Web Based System for Radio Planning in WRAP ii Web Based System for Radio Planning in WRAP Acknowledgements The parent software WRAP used for development of concept of this thesis is the work of many people In particular a credit goes to WRAP International AB Link ping Sweden That has supported in developing new solution for web based WRAP First I would like to thank all the team members of WRAP International AB who gave me opportunity and support on research and development of web based solution for its existing WRAP software WRAP International AB team also provides all necessary equipments and funding during this project My special thanks to my supervisors at WRAP International AB Andres Thomasson and Ulf Rydberg and for great supervision and guidance I would also like to thank G ran Olsson and Olov Carlsson for their support and encouragement I am equally thankful to Professor Patrick Lambrix IDA Link ping University for his time patience and supervision during the duration of this thesis work Finally I would like to thank my wife for proofreading and supporting during this thesis work Web Based System for Radio Planning in WRAP iy Web Based System for Radio Planning in WRAP v Table of Contents 1 IritroductiOD ccce coectetuer tte eteteetm 1 1 1 Radio Communication and Spectrum
65. map browser are developed using JavaScript framework called Open Layers because they are opensource and in same time is very simple to use and jQuery col lapsible menu is used to tools at the right hand side To maintain security the client page has sessions which will prevent the system against misuse 4 3 3 Implementation of Client and Administrator pages Client and Administrator pages are ASP NET pages where controls are developed using C and which will communicate with MS SQL database Figure 13 1 for transactions The Figure 14 1 shows the class diagram that is used to build process of client and administrator Where it shows the interface class IData which contains only the representation of me thods and database connection class dbconn defines connection strings to connect to the database and method which help to connect database This client and admin page is different than calculator interface since it uses database on the web server Moreover the client and admin page need use to prove their authorizations to access them 4 3 4 Socket communication in web based WRAP Implementation of sockets in browser is one of the most important parts of this thesis Nor mally browser do not support sockets but as discussed in section 3 1 2 we can implement Flash or Silverlight to keep socket live throughout the project execution For this thesis we chose Silverlight 2 0 the socket in Silverlight is connected to WRAP API server until we
66. need to convert into the respective XML string in order to use it as command for WRAP API server these converted XML strings are then sent to the server using sockets described in Section 3 2 1 3 The received message or result from the server are also in form of XML string format which are parsed and presented visually JavaScript is used to convert visual elements to the XML strings and vice versa 106 107 function _getStationList listType 108 var Mb ml yersiom 1 0 encocding unt 65V TOWERS 109 xmlns WRAP API 1 0 wrapXMLVer 0 1 reference 4 110 WRABRS ig T ji lt QUEHY type stacione ietessmce lsers p listType all L lt Name gt lt Name gt Listing 4 2 JavaScript code examples for converting visual commands to XML string Web Based System for Radio Planning in WRAP 50 The Listing 4 2 defines an example of JavaScript code for extracting all Stations available on WRAP API server s database this function generates XML strings which works as com mand for the server In the Listing 4 2 line number 107 listT ype is passed as parameter which actually is visual command to define types of station that user want to list on output 4 3 6 Calculations in Web based WRAP For implementation calculator functions and interface JavaScript jQuery HTML and CSS are used For map viewer in browser OpenLayers framework is used Similarly jQuery is used to create various user interfac
67. ng in WRAP Coverage Information Station GSM Base station iq 24 0000 Rx m 2 0000 FreQuency 935 0000 MHz Min Value 0 0000 5 6 7513 90 186 7424 May Value 508 8929 10 15 2437 95 229 1171 Mean Value 78 2779 50 52 9042 Resolution 499 4044 Terrian Height m 50 0000 H69 S3 L192 R 190 G23 6174 Figure 15 21 Coverage Results u Printing To print the calculation data and map click on the printer icon at the toolbar dP Pees to Figure 15 22 Printing Map and calculation data 91 Web Based System for Radio Planning in WRAP 92 15 3 Administrators e Open Browser enter the URL for administrator This will show you login box for the admin Login with you valid user details and PIN Password PIN code Login Figure 15 23 Administrative login e The valid login will lead to the admin panel The front page at the admin panel will show the lists of users that have requested to use WRAP but didn t complete the sig nup process The administrator can delete them anytime Web Based System for Radio Planning in WRAP 93 admin Logout INTERNATIONAL My WRAP Z Welcome admin to Administrator Page Home Requested members Change Password Contact Order ID Company SEEN Address Country email ID Remarks Regcode T tt Configurations 15 test jtest test jtest j0001 001 0001 com t adf fycm Delete the demo
68. nge details of users and can view the projects details of particular user In addition he can change software packages settings and can create edit and delete help topics The help topics are list of questions with answers that aims to help users for using the system Moreover the administrator can post as well as edit important messages about systems such as important alerts news and offers Admin panel UserList Software Package Help Topics User details saved project Figure 4 4 Design of Administrator in Web Based WRAP Message Boardcaste Web Based System for Radio Planning in WRAP 45 4 2 3 Calculation system design The basic design principle of Web based WRAP software depends on fact that sockets communication is necessary to exchange message between browser and WRAP API server Client System WRAP API server Conversion between XML XML string messages message into visual com ponent and vice versa Socket connectors XML string messages Figure 4 5 System concept of web based WRAP for calculation The UI of calculation system will mask the process of communication between browser and WRAP API server The UI of calculator is implemented in such way that user will follow simple steps of wizard to perform calculation The commands send on UI will be converted into respective XML strings which will be sent to the WRAP API server for processing In similar way the response from API server will be con
69. ngs x These map assumes Sweden Geo Class for Image and vector Data Text built up area 2000 9999 Text built up area 200 1999 Text village Text airport etc Text road number Road Private road Railway Island Lake Sea Coastline River Built up area Province boundary County boundary Municipality boundary Power line Vector Overlay Airports Image Layer Turn off XT Figure 15 15 Map settings q Scale The custom scales can be set using scale dialog Map Scale can be changed by click in View Scale Scale Selector 01 200 04 500 1 1000 1 2000 1 5000 1 10000 1 20000 1 50000 1 100000 1 200000 1 250000 1 500000 1 1000000 1 2000000 1 5000000 1 100000000 1 200000000 Figure 15 16 Map Scale Web Based System for Radio Planning in WRAP 88 r Creating stations e Create markers that may be required to locate station s position on map F Markers and Coordinates Map Coordinates Latitude 15E5841 49 Longitude 58N4239 94 Marker Name new marker Add Marker Z new marker 15E5841 49 58N4239 94 OTxORy X Delete Marker prene Figure 15 17 Marker tool to set marker on Map e Click View gt Create New station to start the wizard and follow instructions to create new station On success of this command station templates are listed into the select station list box at the ri
70. nnecting and sharing single centralized database or alternatively replica of centralized database WRAP database server is the collection of all necessary information for the calculation The calculations are performed in the client system Web Based System for Radio Planning in WRAP 14 Fixed connection Client System Client System Fixed connection Alternative connection using db Replica Fixed connection IM WRAP database server Client System Figure 2 11 WRAP software organization The WRAP defines the system in following functions e Databases WRAP Database mainly stores equipments stations and users list 1 Save Open Stations Transmitters Installation Receivers independent Antennas WRAP db Filters Filters Figure 2 12 Basic working of WRAP with database Figure 2 12 shows the types of data in database The data in database can be installation dependent and independent data The installation dependent data means the data at the instal lation radio site The data for stations are installation dependent as for example coordinates Web Based System for Radio Planning in WRAP 15 can change in different installations However the data for transmitter receivers antennas cable filters are installation independent which can also be changed but it will affect all sta tions using that equipments e User workspaces Projects
71. ogout savedate 8 27 2009 9 18 08 AM 9 8 2009 2 15 40 PM 9 8 2009 4 02 55 PM 9 9 2009 8 11 00 AM 9 9 2009 9 10 54 AM 9 9 2009 12 00 55 PM 9 9 2009 1 08 54 PM 9 9 2009 1 22 30 PM 9 9 2009 1 39 23 PM 9 9 2009 3 36 23 PM projectname nabinrsgmailcom_newpro nabinrsgmailcom_nabnew nabinrsgmailcom coverage nabinrsgmailcom newtesti nabinrsgmailcom nabinrsgmailcom coverage2 nabinrsgmailcom newtesti nabinrsgmailcom stationtesti1 nabinrsgmailcom_mysavedpro nabinrsgmailcom_finalWorkcoverage WRAP INTERNATIONAL Figure 15 10 Saved Projects Web Based System for Radio Planning in WRAP l Help Topics can be viewed by click in Help topics gt help Topics Welcome nabinrs gmail com Logout mar WRAP INTERNATIONAL WRAP Help Topics Q What are the products of wrap A Wrap deals with radio planning and spectrum management tools development as well as consulting services Q What are the products of wrap A Wrap deals with radio planning and spectrum management tools and development as well as consulting services and more Q What is coverage 123 how can it be calculated A Coverage is area at which you can obtain radio frequency signals WRAP se linkoping se 9090 Q How can we calculate coverage in web WRAP Q station wizard from template how to create A Click on menu gt new stations choose station configure station dick finish PUNE Q l
72. ommunications 3rd Edition 2005 ISBN 9780470870969 9780470870976 chapter 8 Institute of Telecom Science ITS Colorado http www its bldrdoc gov fs 1037 dir 016 _2398 htm Last accessed 17 Dec 2009 J D Meier Alex Mackman Blaine Wastell Prashant Bansode Andy Wigley Ki shore Gopalan Security Checklist ASP NET 2 0 patterns amp practices Developer Center Microsoft Corporation August 2005 http msdn microsoft com en us library ms998249 loband aspx jQuery http www jquery com Jukka Lempi inen Matti Manninen Radio interface system planning for GSM GPRS UMTS Kluwer Academic publishers Springer ISBN 0 7923 7516 5 K E Oliver Introduction to Automatic Design of Wireless Networks Crossroads The ACM Student Magazine Xrds11 4 Laiho Janna Helsinki University of Technology Radio Network Planning and Op timisation for WCDMA Thesis for the degree of Doctor of Science in Technology Manner Jennifer Spectrum Wars The Policy and Technology Debate Norwood MA USA Artech House Incorporated 2003 P Copyright 2003 Artech House Incorporated All rights reserved Martin Fowler UML Distilled 3 Edition A brief guide to the standard Object modeling Language Addison Wesley object technology series Microsoft http www asp net ajax AjaxControlToolkit Samples Last accessed 17 Dec 2009 Microsoft ASP NET http msdn microsoft com en us library ms644563 aspx Last accessed 17 Dec 2009
73. on in system admin user also uses browser to access admin panel The main task of admin user is to maintain and manage the system As described in design section 3 2 1 4 valid admin have to prove them with user name password and PIN code Figure 5 6 shows the interface for the admin Login 11 Admin Login Le A Le 2 Username INTERNATIONAL Password Figure 5 6 Administrative login For successful users access to admin panel is granted the view of admin panel is as shown in Figure 15 24 The admin has exclusive access to edit and delete parameters of users In addition admin can create various help topics see Figure 15 25 that will be displayed in the client see Figure 15 11 as well as admin will be able to broadcast messages about the system alerts to the users The details on this section are discussed at user manual see section 5 3 Web Based System for Radio Planning in WRAP 58 Web Based System for Radio Planning in WRAP 59 6 Evaluation In this section we will evaluate web based WRAP The evaluation process includes analyz ing requirements and results as presented in user manual compare them to see whether the requirements are satisfied or not 6 1 Evaluation of User Interface Web based WRAP has focused on simplifying complex functionality of calculation in WRAP software into number of simple steps see 15 2 in User Manual so that a person having very little knowledge of radio planning can also operate it H
74. on put design according to requirement and analysis presented in chapter 3 Moreover Implementation of system will also be dis cussed Chapter 5 System This section shows how requirements analysis design and implemen tation were used all together to develop system Chapter 6 Evaluation This section shows how requirements were used to analyze the results This section also includes performance comparison between web based and desktop WRAP Chapter 7 Conclusion Conclusion of thesis and future possibilities References Appendix A List of abbreviations Appendix B List of figures Appendix C List of tables Appendix D List of code segments Appendix E Database Diagram Appendix F Class Diagram Appendix G User Manual 4 Web Based System for Radio Planning in WRAP 5 2 Background This chapter discusses all background materials required to better understand the thesis 2 1 Radio planning process Planning of radio network is very challenging task However an organization can minimize problems that may rise during deployment of network with properly planned radio network The process of Radio network planning is shown in Figure 2 1 The network planning process follows steps like requirement specification dimensioning planning and optimiza tion Input Process Network Dimensioning Site Estimation configurations Requirements e Coverage Related Network Plannin s Capacity Related e
75. onments One of the requirements of this project is to build web system that is able to connect from web browser to the WRAP API server through network using socket communication While analyzing available techniques for web a browser which supports HTML 4 x cannot really support socket communication In order to be able to participate in active socket communica tion for browser there are few ways such as using sockets from Adobe Flash Silverlight JAVA Applets The WRAP API sever is constructed in such way that it need a unique socket session for entire unique project see Figure 3 9 So browser application needs to be single page to solve the issue of unique socket for entire project Web Based System for Radio Planning in WRAP EN EM SLM pip NP Figure 3 9 Browser to WRAP API server communication There can be number of browsers Each browser can connect to server with its own unique sockets the accepted socket will open a project at server and entire calculations are made on that socket Various techniques can be used for that purpose such as using AJAX JavaScript frameworks like jQuery building over all system in FLASH or using Silverlight Other web platform like NET framework enable to use facilities of Microsoft libraries and in same time can take full advantage of Ajax and other JavaScript functions 3 2 4 Security Along with rising popularity of web based applications number and sophistication of attacks a
76. owever to perform cal culation in web based WRAP user needs basic knowledge of computer and internet brows ers WRAP calculator is single page web application which uses AJAX to make system highly interactive see 15 2 in user manual The users can perform various tasks without refreshing the page which gives them capacity to explore the calculation and also help them to feel comfortable with the system Section 15 2 of user manual mainly discussed about the calcu lation tool where user can browse maps place marker on map select stations with different parameters etc in single calculation page Moreover he can perform coverage calculation and observe its result also in same page 6 2 Evaluation of Functions Web based WRAP is divided into public and private pages the public pages intend to show contents with information of WRAP see Figure 15 1 and where as private pages are se cure and contain personal settings and information Moreover if the visitor likes to buy the system he she can choose for registration followed by sign up process to buy it online The private pages have separate access for users and administrators Each of them uses their personal authorization parameters to access their respective pages Client can manage his her tools and functionalities with his her personal panel Moreover he she has separate calcula tion panel from which he she can perform calculations Similarly administrator has exclu sive power to
77. p c Ladditional 2 5 Where Lspectrum is total loss where the full transmitter spectrum mask is filtered through external transmitter filer external receiver filter and the receiver selectivity 24 2 2 1 Geographical Environment To achieve a good link performance the link budget has to be achieved The link budget comprises the transmission loss which is affected by geography of propagation environment The main categories of geographical environment information that are used for calculating the transmission loss are e Terrains e Clutter e Atmospheric conditions Terrains Planning radio communication needs the knowledge of Terrain conditions Terrains are the vertical elevations of land surface such as hills mountains and other features that can block severely attenuate radio signals Terrains can also reflect and scatter transmitted signals creating multiple paths for them to arrive at the receiver Topographic maps are the funda mental source of information of terrains The map contains much information including ele vations Before invention of computer database that contain terrain information generating topo graphic map is very difficult error prone manual process which are used for many years However with invention of computer database traditional paper based topographical map are replaced with digital map Since then digital map is one of the basic components of the modern radio planning because of its capacity to
78. process needs you to check your email so that you can obtain PIN for that process Web Based System for Radio Planning in WRAP INTERNATIONAL Customer Registration Company Name Contact Person Address Country Telephone Email I would like to order WRAP demo WRAP basic wrap professional wrap complete package Remarks Submit Registration 2008 WRAP International AB Tanneforsgatan 8 SE 582 24 Link ping Sweden Phone 46 13 473 45 00 Figure 15 3 Client Registration Open your email inbox and follow the instruction given on the email Enter your Username same email that you used at the time of register desired password and the PIN that you got in your email This will give you the status of ac tive user 79 Web Based System for Radio Planning in WRAP 80 WRAP zwi INTERNATIONAL Username Email used for registeration Password Contacts Repeat Password T PIN code fT f Figure 15 4 Signup Client f Youcan login with the username and password you have created now See Figure 15 2 Client Login Process for login This will lead you toward the client panel You can logout any time by clicking logout which is on the top left corner or from the log off menu Welcome nabinrs gmail com Logout My WRAP e Welcome to Wrap Webb My Tools For Help please Contact Wrap International
79. process 9 eese eene enne enne een 6 Figure 2 3 Network Optimization process ee eee 7 Figure 2 4 Link budget parameters shown in diagram 24 seen 8 Figure 2 5 Topographic map 121 i fft ree e rere 10 Figure 2 6 Raster topographic data terrain height varies between 50 56 m sss 10 Figure 2 7 Land coverage map of Ostergotland Sweden sss 11 Figure 2 6 Raster morphographic data sss sss 11 Figure 2 9 Radio communication LH sss sese 12 Figure 2 10 Fresnel zone around the propagation eese eene 13 Figure 2 11 WRAP software organization senenn 14 Figure 2 12 Basic working of WRAP with database eese 14 Figure 2 13 2D map viewers in different projections 24 eee 16 Figure 2 14 3D map viewer 24 eene nennen nennen seen nnn nennt nennen 16 Figure 2 15 Profile viewer 24 sese 17 Figure 2 16 2D map with result of coverage calculation 24 eee 18 Figure 2 17 Classic vs AJAX Web Model IO sss 26 Figure 2 18 web 2 0 higher level architecture 23 eene 27 Figure 3 1 Web Based system users sss eee eee eee 32 Figure 3 2 Client registration process eene nnne n nnne nere eene 33 Figure 3 3 logged Client interaction with web system eee 33 Figure ES SHIT ATHEN 34 Figure 3 5 Calculation 01 d ite re ee ean reel ee ee en re o teas 35 Figure 3 6 Administrator to System interaction sese eee 36 Figure
80. rformance of radio hardware but also includes some features of environment The Figure 2 4 depicts the scenario of radio service which is used to calculate link budget The elements of design component of each radio communication system are the single wire less link that connects the transmitter Tx with the receiver Rx Tx Antenna Gain Rx Antenna Gain COMI U Tn N l Ray Path Transmission Loss Fiters Cable Fitters Feeder Rain Attenuation Loss Rx etc Selectivity Transmitter Receiver Figure 2 4 Link budget parameters shown in diagram 24 Even though Tx and Rx are placed into sufficient height to achieve maximum path clearance there are several occurrence of losses which we will discuss on Transmission loss section 2 2 1 Simple Link budget equation is Pa EIRP Qpyrx Lp Grx Prxrx uu Litter m Leable m Lxpp ee Ladditional 2 4 Where EI RP o une is the radiated power in direction toward the receiver Lj is the trans mission loss Gg pp r is receiver main antenna gain in the direction toward the transmit ter Lfiter is the loss at the transmitted frequency in the receiver filters Labis is loss of an Web Based System for Radio Planning in WRAP 9 tenna cable Lypp is the loss due to Polarization L 44 54 is any extra loss in the receiver side defined by user For unwanted signals the link budget used is Px EIRP Qpxrx T Lp Ggx rxtx E Lspectrum T Leable S Lyp
81. s for the project and analyze the feasibility of important parts of WRAP that we are going to implement 3 1 Requirements In this section we will discuss about the required features that have to be available in web version of WRAP The requirements are given by WRAP International AB are listed in de tails below 3 1 1 User interface UI o User interface must be simple and user friendly so that users with very basic internet browsing knowledge can operate the solution o All the calculation tools and interface for calculator must be available in single page so that e User can provide all required inputs at different stages of calculation e User can observe instant results on queries which he can compare with his input e User can have better interaction with respective services at WRAP API server o UL of calculator must have map browsing and could be able to display map from WRAP API server o Output or results of calculation must also be visible in similar page 3 1 2 Functionality o A new user can register to the system can buy access to web based WRAP system using online payment o Web based WRAP must contain separate management pages for users administrators and calculations The access to calculation panel must be given for valid users only o User must be able to open and save their respective project files And must be able to open them anytime from remote locations using web based WRAP o An administrator of
82. t Required An e Antenna S tenna Height height e Frequency Terrain Clear e Position ance Angle e Frequency e Tx EIRP e Antenna height e Azimuth e Antenna tilt Best server e Position e Max antenna Sensitivity noise limited e Frequency gain e Tx EIRP e Antenna pat e Antenna tern height e Polarization e Azimuth e Antenna tilt Best server in e Position e Max antenna e Occupied Sensitivity terference li e Frequency gain bandwidth Required S I mited e Tx EIRP e Antenna pat e Frequency IF bandwidth e Antenna tern characteris Frequency cha height e Polarization tics not racteristics not e Azimuth needed if on needed if only e Antenna tilt ly co co channels to channels to be considered be consi dered 20 Web Based System for Radio Planning in WRAP Number of e Position e Max antenna Sensitivity servers e Frequency gain Noise limited e Tx EIRP e Antenna pat e Antenna tern height e Polarization e Azimuth e Antenna tilt Number of e Position e Max antenna e Occupied e Sensitivity Servers e Frequency gain bandwidth e Required S I Interference e Tx EIRP e Antenna pat e Frequency e F bandwidth limited e Antenna tern characteristics eFrequency cha height e Polarization not needed if racteristics not e Azimuth only co needed if only e Antenna tilt channels to be co channels to considered be considered Maximum e Antenna x Clearance height Minimum e Frequency Cl
83. tation 89 Web Based System for Radio Planning in WRAP Coverage Wizard Coverage Wizard Description new coveragex Description new coveragex 9 Required antenna Height calculates the required antenna height for visibility Coverage Area Received Power calculation The map area Transmission loss r x ee Circle with around station with radius Clearence 0 i Radius 25 Next gt gt Cancel Lat 15E3842 04 Lon 58N3600 72 lt lt Previous Next gt gt Cancel Description new coveragex Quality Name info Presentation Map Remove Very Low newcoveragex Q9 F x Low newcoveragex Q9 FF x Blaverage High Very high lt lt Previous Finish Cancel Figure 15 20 Coverage Planning calculation Wizard e As shown in Figure 15 20 Dialog 1 we can define the coverage calculation s descrip tion as well as we can calculate coverage for required antenna height received power calculation or transmission loss e Dialog 2 we can choose map area defined at g or circle around station e Dialog 3 select resolution of map for display e The coverage result will show at panel on the right hand side It will show the result of the coverage select on Map column to show map with coverage plot info will show related information and presentation will show the presentation data for coverage see Figure 15 21 90 Web Based System for Radio Planni
84. titudes seem larger than they should be designed for nautical navigation 19 7 Geo Class Geographical database sets Web Based System for Radio Planning in WRAP 16 Orthographic True centre distance azimuthal great circle Mercator World Figure 2 13 2D map viewers in different projections 24 3D map in WRAP uses exaggerated height scale which improves the presentation for the instance results based on propagation models using diffraction m peel m Figure 2 14 3D map viewer 24 Web Based System for Radio Planning in WRAP 17 Profile Viewer A profile viewer is representational diagram for the elevation amp clutter profile between two fixed positions It can be used to evaluate the reliability of antenna height require ment The red line in Figure 2 15 represents the link between two points blue line en closes the oval diagram that is Fresnel zone see Figure 2 10 Dark green and yellow color belongs to land heights y j 14 0 Link Station 21 km Link Station 41 Figure 2 15 Profile viewer 24 e Calculation Tools Those are tools that are capable for performing a large number of different tasks supporting different radio services and customer demand Current fol lowing functions are provided Coverage Interference Radio Link performance Spectrum Viewer Collocation Interface Frequency Assignment Radar Coverage Coverage Comparison Eart
85. to encode the six bit binary data values 0 63 3 Web Based System for Radio Planning in WRAP 51 Line 237 shows the left top coordinates and right down coordinates Line 238 sets the size of display for image Similarly Line 241 and 242 will remove any existing layers of image and replace it with recent image 4 3 7 Printing of results and Maps Printing in web based WRAP uses CSS media see Listing 4 4 in separate CSS file Printing of output produced may need additional data than that is seen on screen Hence various hid den tables and text fields are implemented to resolve this issue That means all the required data will be there in the page but are not visible on the monitor 001 media print 002 Ore 180 Listing 4 4 CSS for printing 4 3 8 File handling in web based WRAP using WRAP API server We already discussed WRAP application will save file in binary with extension wpr that are also same in WRAP API server The file handling in context of web means making web application enable to open and save wpr files in WRAP API servers There is not any API message for listing the name of saved projects in server Hence we implemented parallel database see Figure 13 1 of saving project as per users ID and in same time we will save send command to API server to save file in same name The architecture that is implemented to solve this problem is as shown in Figure 4 8 When user saves the project
86. tre teatro teatro tee ith ro d de doo do de Ee TAE 31 User nterface Ul e aaa E Tc rs 31 Silas lea T 31 TECHNO le T 32 Analysis rtt et ete eet 32 Use case scenario hioc ERES 33 17 X 36 Webtechniques nenne nnn 38 KT Te gin REED Imm 39 Design and Implementation sn aiia ia ia 41 SystemrArchitecture eee eee beset eve tachcnetet es 41 Software Design eee eee 41 Client system in Web based WRAP 42 Administrator section sse ee eee eee eee 44 Calculation system design esses nnne 45 Designing security system of WRAP eee 45 Implementation s ooo eoo oet eet notices see Ee e Ee SEEN eee eee 46 Setting up environment for Implementation eee 47 Implementation of User Interfaces U 47 Implementation of Client and Administrator pages 48 Socket communication in web based WRAP eeeeeeeeee 48 Converting visual elements to XML strings and vice versa 49 Calculations in Web based WRAP sese eee eee eee 50 Printing of results and Maps sees 51 File handling in web based WRAP using WRAP API server 51 Security in web based WRAP sssseccececcesesseeeeceeeesaeaeseeeeeeeesaaaaness 52 vi 6 1 6 2 6 3 6 4 7 1 7 2 10 11 12 13 14 15 15 1 15 2 15 3 Web Based System for Radio Planning in WRAP Client Systems a aee cire ee ectre
87. uch as XHTML CSS HTML jQuery ASP NET JavaScript AjaxToolkit are used to obtain attractive and user friendly interface Graphic designs that are required for attractive user interface are created with GIMP The client and administrator section has multiple pages for respective functions where as calculator page has single page developed using Ajax jQuery Silverlight CSS JavaScript to make all necessary functions available in that page T Openlayers OpenLayers is a pure JavaScript library for displaying map data in most modern web browsers 17 jQuery jQuery is a fast and concise JavaScript Library that simplifies HTML document traversing event handling animating and Ajax interactions for rapid web development 8 P Ajaxtoolkit The ASP NET AJAX Control Toolkit is an open source project built on top of the Microsoft ASP NET AJAX framework 14 14 GIMP GIMP is the GNU Image Manipulation Program It is a freely distributed piece of software for such tasks as photo retouching image composition and image authoring Web Based System for Radio Planning in WRAP 48 wo ox Yew pe dP 2Oe ested Ta E MOV Css dropdown menu Vid 156555301 58N232573 Figure 4 7 UI of calculator in web based wrap As described by Figure 3 8 various web components are used to develop calculator inter face For example drop down menu is implemented in CSS to keep complexity of code rela tively low Whereas
88. ulari ty on developing the product providing features that proves helpful on development of RIA AJAX Asynchronous JavaScript And XML AJAX has changed many aspect of web application development see Figure 2 17 Before AJAX web was used to share static pages of information Over years it evolved into more dynamic medium Today at the heart of new technology lays a single page interface model that facilitates rich interactivity With AJAX features web changes are made to individual user interface components contained in a web page as opposed to refreshing the entire page AJAX architecture Figure 2 17 which shows architectural difference between traditional Web approach and AJAX based web approach In traditional Web application everything is processed at the web server except few scripts that run at the client s end such as data validation In contrast AJAX based application uses client side logic that handles issues calls to the Web server At end of server AJAX server side takes care of request and returns data feeds to the client The client receives data feeds from server which are used to update UI using javaScript Bandwidth consumption are comparatively low in AJAX based systems as well as the speed of application were improved Web Based System for Radio Planning in WRAP 26 HTTP Request HTML markup for new page Classic WEB HTTP Request LL u UIN HTML markup for new page AJAX Library AJAX Library
89. ulation in addition accounts for the transmitter spectrum mask transmitter and receiver antenna filters and the receiver selectivity Change of any station or equipment characteristics can easily be done which will be recognized by subsequent calcu lations After the calculation is done an arbitrary number of levels for the result can be dis played either in 2D or 3D map For example in Figure 2 16 is 2D map presentation in WRAP Figure 2 16 2D map with result of coverage calculation 24 The steps of Coverage calculation in WRAP Web Based System for Radio Planning in WRAP 19 o Choose option whether to perform normal calculation in one of common map for all stations or marked stations only OR in user defined circle around each station The number of different calculation shown in Table 2 1 Probability of coverage or the coverage for a given probability can be calculated Choose Uplink or Downlink calculation where applicable Use definable mobile select height reference for the mobile as above sea level ASL or above ground Level AGL or Above ground level and buildings O O O O O Define calculation area it can be polygon circle line and point These are can be de fined in the Map viewer or import area from text file Point calculation can be set form stations in the station list Define calculation resolution as defined in Table 2 2 Calculation of percentage coverage of terrain classes of selectable types Post proc
90. verted in order to present in UI 4 2 4 Designing security system of WRAP Security is one of the important parts of web based WRAP The design of security is as shown in Figure 4 6 User Interface is first target that an attacker will try to analyze Hence there must be clear separation between public and private part of user interface to keep attackers away from pri vate section Moreover every input field must be checked against possibility of misusing which can be done with validating data inputs Web Based System for Radio Planning in WRAP Security at Design Authorization Database security Session management The System Figure 4 6 Security design for web based WRAP When the design is secure enough the application must be secured with authorized creden tials to filter unauthorized users The database must be handled in such a way that only valid user can access permitted part of the database and system In order to continue access on the system users should also have to maintain sessions 4 3 Implementation In this chapter we will discuss how the analyzed solution is implemented to gain respectable resulting output NET framework 3 5 and ASP NET 10 is chosen as the main platform for implementation because NET can be used to connect systems devices and people using internet or an intranet as a backbone NET is being supported by range of Microsoft prod ucts which make design development and implementation
91. wish to terminate it or refresh or close active web page Silverlight for this socket program ming for this thesis is chosen because of its compatibility with many standard languages Web Based System for Radio Planning in WRAP such as C VB NET and JavaScript Another main reason is we are building system on ASP NET so Silverlight is best option that can give us full support while using NET frame work Since we cannot refresh the page because on refreshing page new socket will be created which will then have different socket ID than old one that makes it unable to continue calcu lation To handle this issue client side interfaces are built with jQuery JavaScript and Ajax Listing 4 1 shows how the Silverlight classes are called when JavaScript functions are ex ecuted Here the Button control is handled using JavaScript which will called to the class in Silverlight containing this piece of code lPage RegisterCreateableType resultType typeof HTMLResult HtmlPage RegisterScriptableObject MyControl this HtmlElement button lPage Document GetElementById Buttoni Listing 4 1 Silverlight class code access for calling from JavaScript In similar way XML strings used as command are transferred from web interface to API server using Silverlight sockets when the given button click even is triggered using Java Script 4 3 5 Converting visual elements to XML strings and vice versa The visual elements

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