摘要
ItisnecessaryforanMC-CDMAuplinkreceivertoemployMUD(multiuserdetection)inafrequencyselectivefadingchannel.AfteranalyzingthealgorithmofPIC(parallelinterferencecancellation)MUD,anovelMUDscheme,Soft-PIC(softparallelinterferencecancellation)isproposed.Basedonthereliabilityofeachdetectedusersignalintheformerstage,thisSoft-PICdetectionschemesubstitutesasoftdecisionofthevariablefortheharddecisioninPICscheme.ComparedwiththePICscheme,itcanreconstructtheinterferencesignalsmoreaccuratelyandeliminateMAI(multipleaccessinterference)inamoreefficientway.PICisoneofthemostpracticalschemesinnumerousmultiuserdetectiontechnologies.However,Soft-PICasanimprovedPICschemedeservesfurtherstudy.
出版日期
2005年02月12日（中国期刊网平台首次上网日期，不代表论文的发表时间）
