Multi-user detection in DS-CDMA Systems: a Conjugate-gradient implementation

被引：0
|
作者：
Al Housseini, A [1 ]
Chonavel, T [1 ]
Saoudi, S [1 ]
Ammar, M [1 ]
机构：
[1] Ecole Natl Super Telecommun Bretagne, Signal & Commun Dept, F-29285 Brest, France
来源：
57TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, VTC 2003-SPRING, VOLS 1-4, PROCEEDINGS | 2003年
关键词：
DS-CDMA; successive interference cancellation; multipath propagation; Rayleigh channel; RAKE receiver; multiuser detection; conjugate gradient;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper deals with Direct-Sequence Code Division Multiple Access (DS-CDMA) transmissions over mobile radio channels. An iterative Conjugate Gradient (CG) implementation of the decorrelator detector is studied in the case of asynchronous transmissions over multipath channels. This implementation is based on a sliding window technique. Simulation results are presented for flat fading Rayleigh multipath channels, showing that the proposed detector is resistant to the near-far effect and that low performance loss is obtained, compared to the single-user bound.
引用
收藏
页码：2148 / 2151
页数：4
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