资源描述：
《equalization and decoding for mimo wireless channels 687外语英文电子书》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、EURASIPJournalonAppliedSignalProcessing2002:3,249266c2002HindawiPublishingCorporationEqualizationandDecodingforMultiple-InputMultiple-OutputWirelessChannelsBjørnA.BjerkeQualcomm,Inc.,9DamonmillSquare,Suite2A,Concord,MA01742,USAEmail:bbjerke@qualcomm.comJohnG.ProakisDepartme
2、ntofElectricalandComputerEngineering,NortheasternUniversity,360HuntingtonAvenue,Boston,MA02115,USAEmail:proakis@neu.eduReceived31May2001andinrevisedform11January2002Weconsidermultiple-inputmultiple-output(MIMO)wirelesscommunicationsystemsthatemploymultipletransmitandreceivea
3、ntennastoincreasethedatarateandachievediversityinfadingmultipathchannels.WebeginbyfocusingonanuncodedsystemanddefineoptimalandsuboptimalreceiverstructuresforthissysteminRayleighfadingwithandwithoutintersymbolinterfer-ence.Next,weconsidercodedMIMOsystems.Weviewthecodedsystemas
4、aseriallyconcatenatedconvolutionalcode(SCCC)inwhichthecodeandthemultipathchanneltakeontherolesofconstituentcodes.ThisenablesustoanalyzetheperformanceusingthesameperformanceanalysistoolsasdevelopedpreviouslyforSCCCs.Finally,wepresentaniterative(turbo)MAP-basedequalizationandd
5、ecodingschemeandevaluateitsperformancewhenappliedtoasystemwithNtransmitantennasandMreceiveantennas.Weshowthatbyperformingrecursiveprecodingpriortotransmission,significantinterleavinggainscanberealizedcomparedtosystemswithoutprecoding.Keywordsandphrases:MIMOsystems,multipleant
6、ennas,fadingchannels,MLSE,linearequalization,DFE,MRC,unionbound,turboequalization.1.INTRODUCTIONwithNtransmitantennasandM≥NreceiveantennasisRecently,multiple-inputmultiple-output(MIMO)wirelessgivenassystemshaveattractedconsiderableattentioninthecom-municationscommunity.S
7、uchsystemsemploymultiplean-C=logdetI+ρHHbit/s/Hz,(1)2Mtennas,orantennaarrays,atboththetransmitterandthereceivertoenablespatialmultiplexingofdataand,thus,in-whereIMistheM×Midentitymatrix,ρisthesignal-to-noisecreaseddatarates.Traditionally,multipleantennashavebeenratio(SNR),a
8、ndHistheM×Nmatrixwhoseelements{hnm}usedatthereceivertoprovidespatialdiversi
