ITERATIVE "ONE-SHOT" DECORRELATION IN DS-CDMA SYSTEMS

被引：0
|
作者：
Du Zheng Zhu Jinkang (PCN&SS Lab
机构：
来源：
Journal of Electronics(China) | 2003年 / 06期
关键词：
Code Division Multiple Access(CDMA) system; Decorrelator; Multiple Access Interference(MAI);
D O I：
暂无
中图分类号：
TN929.533 [码分多址（CDMA）移动通信];
学科分类号：
080402 ; 080904 ; 0810 ; 081001 ;
摘要：
In this paper, an iterative "one-shot" decorrelator for asynchronous code Division Multiple Access(CDMA) systems is proposed. This decorrelator feedbacks the decorrelated symbols of interfering users before decision to mitigate their interferences. As a result, this decorrelator is a linear detector and does not need any amplitude information of users as in decision-feedback detectors. Compared with existing "one-shot" decorrelator, it has reduced complexity and provided better performance while eliminating all Multiple Access Interference(MAI). The performance of this decorrelator is analyzed thoeritically, and analytical result is given. Numerical results show near-far resistant capability of this decorrelator in both AWGN and fading channel.
引用
收藏
页码：414 / 422
页数：9
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