Improved DSE-CMA Error Function for Blind Multiuser Interference Suppression in DS/CDMA Systems  

作　　者：赵海波 胡光锐 朱丽平 

机构地区：[1]Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030, P. R. China

出　　处：《Journal of Shanghai University(English Edition)》2005年第5期429-431,共3页上海大学学报（英文版）

基　　金：Project supported by National Natural Science Foundation of Chi-na(Grant No .60172018)

摘　　要：This paper presents an improved error function of dithered signed-error constant modulus algorithm （IDSE-CMA） for blind multiuser interference suppression in DS/CDMA systems. It uses a different error function to replace the former one in sign operation of the DSE-CMA and compares their performance in multiple access interference （MAI） suppression ability. Simulations indicate that the new algorithm has better performance than the similar CMA in terms of convergence speed and steady-state performance：This paper presents an improved error function of dithered signed-error constant modulus algorithm （IDSE-CMA） for blind multiuser interference suppression in DS/CDMA systems. It uses a different error function to replace the former one in sign operation of the DSE-CMA and compares their performance in multiple access interference （MAI） suppression ability. Simulations indicate that the new algorithm has better performance than the similar CMA in terms of convergence speed and steady-state performance：

关 键 词：interference suppression constant modulus algorithm（CMA） CDMA. 

分 类 号：TN929.533[电子电信—通信与信息系统]