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1、哈尔滨工业大学工学硕士学位论文AbstractWiththedevelopmentofthesociety,Mobilecommunicationtechnologyhasmadegreatdifferenceontheproductionofsocialandlifeofpeople.ThesystemsofrdLTEandLTE-Advancedproposedby3GenerantionPartnershipProject(3GPP)havebeenwidelystudied.Compareingwiththe3Gcellularcommunicationsystems,thegre
2、atimprovementshavemadetotheLTE-A,suchasthestrctureofsystem,thethroughputcapacityofthesystem,thespectrumeffectivenessandsoon.Butinthehotregionorthespecialoccasion,thecapabolityoftheLTE-Acoverageisstillnotenough.Inordertosolvetheproblem,theresearchershavecombinedtheDevice-to-Device(D2D)communication
3、tecolonogyandtheLTE-Asystem.ThecombiningtheD2DcommunicationtecolonogyandtheLTE-Asystemwillreducethecommunicationloadofthebasestation,extendcoveragearea,improvethequalityofservicefortheusersattheedgeofthecell,andincreasethetotalthroughputofthecell.Thereaearchcontentsofthispaperistheresourceallocati
4、onoptimizationforD2DcommuniationunderlayingtheLTE-Anetwork.Firstly,thepurpose,thesignificanceandtheachievementsoftheLTE-AnetworkandtheD2Dcommunicationareproposedinthechapterone.Secondly,thestrctureoftheTD-LTE-Aisdiscussedincludingthestructureofthephysicallayer,theprocessofthephysicallayerandsoon.T
5、heinterferencewillbecomemorecomplex,ifwecombinetheD2DcommunicationtecolonogyandtheLTE-Asystem.Sothirdly,theinterferenceisanalyzedinthecellularsystem.Atlast,thealgorithmoftheresourceallocationoptimizationisproposed,andthisalgorithmisthecombiningoftheresourceallocationforsectionandtheresourceallocat
6、ionbasedontheselectingoftheSINR.Throughthetheoreticalderivationandthenumericalsimulation,wehavegottheinterferencerelationofthecellularusers,theD2DusersandthebasestationwhentheD2Dusersreusetheresourceofthecellularuplink/downlink.TheoptimalproportionofthecellularusersandtheD2Dusersisalsogotfromthesi
7、mulation,andthesimulationalsoshowsthatthetotalthroughputofthecellwillhavegreatimprovementcomparedtothetraditionalcellularcommunicationsystem.Keywords:TD-LTE-A,Device-to-Device,InterferenceAnalysis,ResourceAllocat
