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1、HindawiPublishingCorporationEURASIPJournalonWirelessCommunicationsandNetworkingVolume2011,ArticleID496763,13pagesdoi:10.1155/2011/496763ResearchArticleMU-MIMOinLTESystemsJonathanDuplicy,1BiljanaBadic,2RajarajanBalraj,2RizwanGhaffar,3PeterHorv´ath,´4FlorianKalt
2、enberger,3RaymondKnopp,3IstvanZ.Kov´acs,´5HungT.Nguyen,6DeepaknathTandur,1andGuillaumeVivier71AgilentTechnologiesLaboratories,Wingepark51,3110Rotselaar,Belgium2IntelMobileCommunications(IMC),DusseldorferLandstraße401,47259Duisburg,Germany¨3Eurecom,2229routedes
3、Cretes,B.P.193,06904SophiaAntipolisCedex,France4DepartmentofBroadbandInfocommunications,BudapestUniversityofTechnologyandEconomics,GoldmannGyorgyt¨´er3.,1111Budapest,Hungary5NokiaSiemensNetworksDenmarkA/S,NielsJernesVej10,9220Aalborg,Denmark6DepartmentofElectr
4、onicsSystems,AalborgUniversity,NielsJernesVej12,9220Aalborg,Denmark7SequansCommunications,LeParvisdeLaD´efense19,92073ParisLaD´efenseCedex,FranceCorrespondenceshouldbeaddressedtoJonathanDuplicy,jonathanduplicy@agilent.comReceived1December2010;Revised2February2
5、011;Accepted8March2011AcademicEditor:RodrigoC.DeLamareCopyright©2011JonathanDuplicyetal.ThisisanopenaccessarticledistributedundertheCreativeCommonsAttributionLicense,whichpermitsunrestricteduse,distribution,andreproductioninanymedium,providedtheoriginalworkisp
6、roperlycited.ArelativelyrecentideaofextendingthebenefitsofMIMOsystemstomultiuserscenariosseemspromisinginthecontextofachievinghighdataratesenvisionedforfuturecellularstandardsafter3G(3rdGeneration).Althoughsubstantialresearchhasbeendoneonthetheoreticalfront,rec
7、entfocusisonmakingMultiuserMultiple-InputMultiple-Output(MUMIMO)practicallyrealizable.ThispaperpresentsanoverviewofthedifferentMU-MIMOschemesincluded/beingstudiedin3GPPstandardizationfromLTE(long-termevolution)toLTEAdvanced.MU-MIMOsystemconceptsandimplementatio
8、naspectshavebeenstudiedhere.Variouslow-complexityreceiverarchitecturesareinvestigated,andtheirperformanceassessedthroughlink-levelsimulations.Appealingperformanceofferedbylow-comple
