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A Novel Scheme of Inter-cell Interference Cancellation in TD-SCDMA System

YAN Fa-jun,WANG Wen-bo(Center for Wireless Communications,Beijing University of Posts and Telecommunications,Beijing 100876,China)  
TD-SCDMA system adopts spreading codes with 16 chips.When the users of adjacent cell lie in the edge of cell,the interference is severe.In this paper,a novel scheme was presented,which combines Serial Interference Cancellation(SIC)and Joint Detection(JD)to cancel interference.This scheme cancels inter-cell interference with SIC,and cancels intra-cell interference and residual inter-cell interference of uplink with JD.The simulation results under 3GPP case1 channel show that the novel scheme has good efficiency for inter-cell and intra-cell interference cancellation,and enhance the performance of receiver.
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