Investigation on Adjacent Cell Interference Cancellation in Forward Link of TDD-CDMA System
Wenbo Wang · Beijing Youdian Xueyuan xuebao · 2006
Investigated on adjacent cell interference,an interference cancellation scheme was proposed.The method combines serial interference cancellation(SIC) and joint detection(JD).In the forward link of time division duplex-code division multiple access(TDD-CDMA) system,the basic sequence of severe interfering users of adjacent cell were judged firstly,then the channel impulse responses were estimated and the spread code of such users were judged.Afterwards,the strong adjacent cell inter-(ference)(ACI) was cancelled using SIC,multiple access interference(MAI),inter symbol interference(ISI) and the residual ACI are eliminated by JD.Simulation results show that this scheme cancel ACI of forward link efficiently.