PDA DETECTOR FOR DS-CDMA COOPERATIVE SYSTEM

被引：0

作者：

Mei Zhonghui Meng Qingmin Li Xiaofei Wu Lenan (College of Telecommunication and Information Engineering

机构：

来源：

Journal of Electronics(China) | 2009年 / 26卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Cooperative communication; Multiuser detection; Probabilistic Data Association (PDA); Code-Division Multiple-Access (CDMA);

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：

This paper considers the uplink of a cooperative Code-Division Multiple-Access (CDMA) system where parts of mobile nodes serve as source nodes while the others serve as relay nodes at any instant in time. When the non-orthogonal spreading codes are adopted,Multiple Access Interference (MAI) will exist at both the relay nodes and the base node,causing diversity gain to diminish. To mitigate MAI and exploit full advantages of cooperation,the Probabilistic Data Association (PDA) is developed at the relay nodes and the base node. Simulation results demonstrate that some performance gains can be obtained by the PDA detector over the Minimum Mean Square Error (MMSE) detector at high Signal-to-Noise Ratio (SNR) and conversely at low SNR.

引用

页码：812 / 818

页数：7

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