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A Study on the New Hybrid Interference Cancellation Scheme for Multirate DS-CDMA  

Kim, Nam-Sun (대진대학교 통신공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.9C, 2004 , pp. 1219-1226 More about this Journal
Abstract
The objective of this paper is to proposed a new Hybrid Interference Cancellation(HlC) receiver to cancel MAI in a multirate DS-CDMA system based on multiple processing gain(MPG). We propose a new improved HIC scheme that divides the active users with different data rates split into a number of groups for effectives cancellation Between each group, GW-PIC is performed to cancel other group signals and within them, SIC is carried out to remove multiple access interference in group. We analyze the performance of the proposed receiver in terms of the bit error rate(BER) and examine its performance. As a conclusion, computer simulations show that the proposed schemes outperforms adaptive multistage PIC and conventional SIC receiver over AWGN channel.
Keywords
Multirate; Multi Processing Gain; DS-CDMA; Interference Cancellation;
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