摘要
Code-DivisionMultiple-Access(CDMA)systemsareinterferencelimited,andthereforeefficientinterferencemanagementisnecessarytoenhancetheperformanceofaCDMAsystem.Inthispaper,asuccessivebeamforming(spatialfiltering),lineardecorrelatingMultiUserDetection(MUD,temporalfiltering)anddiversityreceptionstructureforuplinkmulticarrierDirectSequenceCDMA(DS-CDMA)systemwithantennaarrayareproposed.Bybeamforming,theantennaarraysuppressesinterferenceaccordingtothedistinctarraysignature.Subsequently,lineardecorrelatingMUDisap-pliedtoseparatethesignalsofdifferentusersandeliminateMultipleAccessInterference(MAI).Finally,thedecorrelatedsignalsatdifferentsubcarriersthatbelongtothesameuserarecombinedtoachievefrequencydiversity.SimulationresultsshowthattheproposedstructureofferssignificantBitErrorRate(BER)performanceimprovementbysuccessivelyexploitingthespace-time-frequencyprocessing.
出版日期
2007年05月15日（中国期刊网平台首次上网日期，不代表论文的发表时间）
