Applications of Parallel Interference Cancellation in WCDMA Uplinks
LV Dian-ji · Communications technology · 2009
To overcome the multi-addess interference (MAI) and the far-near effect in WCDMA systems by multiuser detection (MUD) and parallel interference cancellation(PIC),a WCDMA system model is proposed,and from this a PIC algorithm based on this model and applied in WCDMA uplinks is derived. The performance of PIC is verified in E-DPDCH channel. Interference users transmission SNR is fixed to 14 dB,and when two users reach the same throughput,1.5 dB SNR gain is obtained adopting PIC. Finally,by analyzing of the simulation results on CCSS,several optimized algorithms are given.