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—dep

2、thresearch．Asoneofthekeytechnologiesinnext—generationmobilecommunicationsystems，relaycommunicationtechnologyplaysanimportantroleinreducingoperationalcosts，eliminatingcoverageblindspots，improvingthecelledgeUSerS’communicationquality,increasingsystemcapacity,ex

3、pandingtheareacoverageandeasingemergencycommunicationwhichhaSbecomeahottopicinwirelesscommunications．Inordertoimprovetheoverallsystemperformance．relaystationsinmulti．hoprelaycellularnetworks(MRCNslmayconsumeadditionalradioresourcecomparedwithtraditionalsingle

4、．hopnetwork．Therefore，howtodesignoptimumrelayresourceallocationschemetoincreasesystemresourceutilizationhasimportantresearchvalues．Adaptiveresourceallocationschemesinthecontextofsingle．．sectorsingle．．relayandsingle-sectortwo—relayarediscussedinthethesis．Thema

5、inresearchcontentsandcontributionsareasfollows：Firstly,thewirelesstwo．hoprelaycellular"networksimulationplatformisimplementedbasedontheLTE．Asystem．1evelstructure．inwhichthechannel．mobileandrelaystationmodulearemodeledandsimulated．Particularly,thesimulationofm

6、obilestationmoduleisimprovedbymeansofgriddistribution．performanceinvolvingthroughput，spectralefficiencyandcoverageratearesimulatedthroughthesystem．1evelsimulationplatformandcomparedwj廿lthesingle-hopnetwork，onthebaSisofwhich，performanceimprovementisanalyzed．Se

7、condly,e伍cienttransmissionpathselectionalgorithmandfrequencyreusebetweenRS(RelayStation)andBS(BaseStation)CallbeeffectiveinalleviatingthedemandpressureforadditionalrelayresourceinMRCN．T￡她ngintoaccountRS’Sreusabilityinthetime．frequencyandspacedomain，thethesisp

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