A PDA approach to CDMA multiuser detection

被引：0

作者：

Luo, J ^{[1
]}

Pattipati, K ^{[1
]}

Willett, P ^{[1
]}

Hasegawa, F ^{[1
]}

机构：

[1] Univ Connecticut, ECE Dept, Storrs, CT 06269 USA

来源：

GLOBECOM '01: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-6 | 2001年

关键词：

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A Probabilistic Data Association (PDA) method is proposed in this paper for multiuser detection over synchronous Code Division Multiple Access (CDMA) communication channels. PDA models the undecided user signals as binary random variables. By approximating the Inter-User Interference (IUI) as Gaussian noise with an appropriately elevated covariance matrix, the probability associated with each user signal is iteratively updated. Computer simulations show that the system usually converges within 3-4 iterations, and the resulting probability of error is very close to that of the optimal Maximum Likelihood (ML) detector. Further modifications are also presented to significantly reduce the computational cost.

引用

页码：763 / 766

页数：4

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