lte-a中继系统中自适应资源分配算法仿真的研究

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1、西南交通大学硕士研究生学位论文第1I页AbstractInordertosatisfythegrowingrequirementsonhi曲el"servicequality,capacity,transmissionrateaSWellaSmorewirelessmultimediaservicetypes．relaytechnologiesareintroducedintoWiML气X．WINNER．and3GPPwirelesscommunicationstandardsandconductedin—depthresearch．Ason

2、eofthekeytechnologiesinnext—generationmobilecommunicationsystems，relaycommunicationtechnologyplaysanimportantroleinreducingoperationalcosts，eliminatingcoverageblindspots，improvingthecelledgeUSerS’communicationquality,increasingsystemcapacity,expandingtheareacoverageandeasin

3、gemergencycommunicationwhichhaSbecomeahottopicinwirelesscommunications．Inordertoimprovetheoverallsystemperformance．relaystationsinmulti．hoprelaycellularnetworks(MRCNslmayconsumeadditionalradioresourcecomparedwithtraditionalsingle．hopnetwork．Therefore，howtodesignoptimumrelay

4、resourceallocationschemetoincreasesystemresourceutilizationhasimportantresearchvalues．Adaptiveresourceallocationschemesinthecontextofsingle．．sectorsingle．．relayandsingle-sectortwo—relayarediscussedinthethesis．Themainresearchcontentsandcontributionsareasfollows：Firstly,thewi

5、relesstwo．hoprelaycellular"networksimulationplatformisimplementedbasedontheLTE．Asystem．1evelstructure．inwhichthechannel．mobileandrelaystationmodulearemodeledandsimulated．Particularly,thesimulationofmobilestationmoduleisimprovedbymeansofgriddistribution．performanceinvolvingt

6、hroughput，spectralefficiencyandcoverageratearesimulatedthroughthesystem．1evelsimulationplatformandcomparedwj廿lthesingle-hopnetwork，onthebaSisofwhich，performanceimprovementisanalyzed．Secondly,e伍cienttransmissionpathselectionalgorithmandfrequencyreusebetweenRS(RelayStation)an

7、dBS(BaseStation)CallbeeffectiveinalleviatingthedemandpressureforadditionalrelayresourceinMRCN．T￡她ngintoaccountRS’Sreusabilityinthetime．frequencyandspacedomain，thethesisproposesamethodthatcomparestheachievablerateofUSerStoselecttheappropriatetransmissionpathonthebasisoftheSI

8、NR(SignaltoInterferenceplusNoiseRatio)．Moreover,theimprovedthroughput—guaranteedsc