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1、AdvancesinBase-andMobile-StationAided©photof/x2CooperativeWirelessCommunicationsAnOverviewRongZhang,LiWang,GerardParr,OsianohGlennAliu,BengaAwoseyila,NaderAzarmi,SaleemBhatti,JohnBigham,ElianeBodanese,HongChen,MehrdadDianati,AmitDutta,MichaelFitch,K.Girid
2、har,SteveHailes,K.V.S.Hari,MuhammadAliImran,AdityaK.Jagannatham,AbhayKarandikar,SantoshKawade,MohammedZafarAliKhan,SayeeC.Kompalli,PatrickLangdon,BabuNarayanan,AndreasMauthe,JosephMcGeehan,NeeleshMehta,KluttoMillet,KlausMoessner,RakshithRajashekar,Barathr
3、amRamkumar,VinayRibeiro,KasturiVasudevan,andLajosHanzonrecentyears,therehasbeenanupsurgeofresearchinterestincooperativewirelesscommunicationsinbothacademiaandindustry.ThisarticlepresentsasimpleoverviewofthepivotalItopicsinbothmobilestation(MS)-andbasestat
4、ion(BS)-assistedcooperationinthecontextofcellularradiosystems.Owingtotheever-increasingamountofliteratureinthisparticularfield,thisarticleisbynomeansexhaustive,butisintendedtoserveasaroadmapbyassemblingarepre-sentativesampleofrecentresultsandtostimulatefu
5、rtherresearch.Theemphasisisinitiallyonrelay-basecooperation,relyingonnetworkcoding,followedbythedesignofcross-layercooperativeprotocolsconceivedforMScooperationandtheconceptofcoalitionnetworkelement(CNE)-assistedBScooperation.Then,arangeofcomplexityandbac
6、khaultrafficreductiontechniquesthathavebeenproposedforBScooperationarereviewed.AmoredetaileddiscussionisprovidedinthecontextofMScooperationconcerningtheprosandconsofdispensingwithhigh-complexity,power-hungrychannelestimation.Finally,generalizeddesignguide
7、lines,conceivedforcooperativewirelesscommunications,arepresented.DigitalObjectIdentifier10.1109/MVT.2012.2234254Dateofpublication:26February2013©creatasMARCH2013
8、IEEEVEHICuLARtECHNOLOGyMAGAZINE1556-6072/13/$31.00©2013IEEE
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11、57MSCooperationconsideredrelayn
12、odes.Naturally,theextratele-trafficSingle-input,single-outputcommunicationsystemsobeybetweenasouceMSandacooperatingMSservingasathelogarithmicShannoncapacitylaw,whilemultiple-relaystation(RS)demandsallocationofadditi