A blind multiuser detection algorithm for QS-CDMA systems

被引：2
|
作者：
Chandrasekaran, R [1 ]
Cagley, RE [1 ]
Shynk, JJ [1 ]
机构：
[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
来源：
SAM 2000: PROCEEDINGS OF THE 2000 IEEE SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP | 2000年
关键词：
D O I：
10.1109/SAM.2000.878017
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we present a multiuser detection algorithm for quasi-synchronous code-division multiple-access (QS-CDMA) systems where the receiver has knowledge of the spreading codes of all users originating from the cell of interest, but does not know the spreading codes of the intercell interferers. The algorithm implements a blind linear detector that can recover several signals in a multipath environment. The received signals are decomposed into two sets: a set of observations that contains the user of interest and the interference, and a set of observations that contains only the interference. With this decomposition, the first user can be recovered by a linear interference cancellation algorithm. The second user is recovered using a similar decomposition technique, except that it operates on a set of observations that excludes the first user. The remaining users are sequentially recovered in a similar manner.
引用
收藏
页码：296 / 299
页数：4
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