“PerformanceEvaluationofWiMAX/IEEE802.16PhysicalLayer”
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Pulchowk Campus
Abstract
Theadvancementsinbroadbandandmobilecommunicationhasgivenmanyprivilegestothesubscribersforinstancehighspeeddataconnectivity,voiceandvideoapplicationsineconomicalrateswithgoodqualityofservices.WiMAXisaneminenttechnologythatprovidesbroadbandandIPconnectivityon“lastmile”scenario.OrthogonalfrequencydivisionmultipleaccessusesadaptivemodulationtechniqueonthephysicallayerofWiMAXanditusestheconceptofcyclicpreixthataddsadditionalbitsatthetransmitterend.Thesignalistransmittedthroughthechannelanditisreceivedatthereceiverend.Thenthereceiverremovestheseadditionalbitsinordertominimizetheintersymbolinterference,toimprovethebiterrorrate.ThisreportincludesthestudyofthetechnologicalaspectsofWiMAXstandardsandevaluate/analyzetheperformanceofWiMAXphysicallayerindifferentperspectives.Inthisresearchwork,Iinvestigatethephysicallayerperformanceonthebasisofbiterrorrate,signaltonoiseratioetc.Theperformancewouldbeanalyzedindifferent aspectssuchaswiththevariationofdifferentmodulationtechniques,cyclicprefix,coding,channelmodelsetc.ThedifferenttechniquesemployedarestudiedtoknowtheimpactofvariationsofdifferentparameterscausingthevariationinthedesiredoutputthsmaximizingthesystemthroughputandimprovingBERperformance.TherearealsootherdifferentBroadbandWirelessTechnologieswhichprovidesbroadbandsolutionstothecustomerssuchas3G,WCDMA,HSPA,WiFi,LTEetc.Inthisthesis,IhavestudiedinbriefondifferentBWAtechnologiesandalsocompareotherBWAtechnologieswithrespecttoWiMAXinthekeydimensions.
Description
Theadvancementsinbroadbandandmobilecommunicationhasgivenmanyprivilegestothesubscribersforinstancehighspeeddataconnectivity,voiceandvideoapplicationsineconomicalrateswithgoodqualityofservices.
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MasterofScienceinInformationandCommunicationEngineering