A New Multiuser Detector for FFH/MFSK Systems  

作　　者：ZHANG Hui YANG Huazhong WANG Hui XU Shuzheng 

机构地区：[1]Department of Electronic Engineering, Tsinghua University, Beijing 100084, China

出　　处：《Chinese Journal of Electronics》2006年第1期143-146,共4页电子学报（英文版）

基　　金：This work is supported in part by the National Natural Science Foundation of China （No.90207001 and No.90203016）.

摘　　要：This paper studies the multiuser detection schemes of Fast frequency-hopping/Multilevel frequency shift keying （FFH/MFSK） multiple access systems. After modifying the scheme of Reduction of the number of candidate matrices （REC）, we propose a new multiuser detector which combines both the modified REC detector and the Iterative interference cancellation （IIC） detector. Compared to the original REC and IIC detector, the performance of the proposed detector can be improved significantly in AWGN channel, interference-only channel and a Rayleigh fading channel. The Bit error rate （BER） of the proposed detector is about 3X-11X smaller than that of the REC detector for systems with frequency slots M = 128, diversity order L = 7, the number of users K = 30 to 80, and the average bit energy-to-noise density ratio Eb/No = 25dB.

关 键 词：Frequency-hopping Multiuser detection Interference suppression 

分 类 号：TN91[电子电信—通信与信息系统]