A blind interference canceller in DS-CDMA

被引：0
|
作者：
Abed-Meraim, K [1 ]
Attallah, S [1 ]
Lim, TJ [1 ]
Damen, MO [1 ]
机构：
[1] Telecom Paris, TSI Dept, F-75634 Paris 13, France
来源：
2000 IEEE SIXTH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS, PROCEEDINGS, VOL 1 AND 2: COMMUNICATIONS FOR A NEW MILLENNIUM | 2000年
关键词：
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：
In this paper, we propose a new interference cancellation scheme for the downlink CDMA where only the signature of the user of interest is known. The spreading sequences of the interfering users can be estimated by exploiting their constant modulus property. We consider first a single-path synchronous CDMA system and propose a Jacobi-like blind algorithm to estimate the unknown signatures. The latter are used first to estimate a set of subspace-based MMSE detectors of the interfering users and then to perform parallel or sequential interference cancellation. Finally we show how the previous results can be generalized to the multipath case.
引用
收藏
页码：358 / 362
页数：5
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