Research on PPIC multi-user receiver for MC-CDMA system
Suyue Li · Computer Engineering and Applications Journal · 2007
This paper investigates the partial Parallel Interference Cancellation(PIC) multiuser receiver schemes in uplink for MC-CDMA system.Multistage PIC multiuser receiver employed linear MMSE detection as the initial stage is presented.In order to degrade the error propagation brought by the inaccuracy of initial decision,a different partial cancellation factor at each stage is multiplied to cancel partially.Regardless of the impact of channel estimation error,performance comparison with conventional MMSE and Decorrelation(DEC) multiuser detection is demonstrated under different users.The simulation results show that partial PIC schemes outperforms MMSE and DEC.