Iterative Soft Multiuser Detection for MIMO MC-CDMA Systems

被引：0
|
作者：
Luo, Zhendong [1 ]
Huang, Dawei [1 ]
机构：
[1] Alcatel Lucent, Bell Labs Res China, Beijing 100080, Peoples R China
来源：
68TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, FALL 2008 | 2008年
关键词：
OFDM; CDMA; MIMO systems; multiuser detection; a posteriori probability (APP);
D O I：
暂无
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, an iterative soft multiuser detection (MUD) algorithm is proposed for multiple-input multiple-output multi-carrier code-division multiple access (MIMO MC-CDMA) systems. Based on an equivalent system model, an efficient soft MUD algorithm is first derived by the central limit theorem, the property of the complex Gaussian distribution, and fast matrix computation formulas. By iteratively using the soft MUD algorithm with some updated probability information, we then obtain the proposed iterative soft MUD algorithm. Finally, it is shown that this algorithm achieves near-optimal performance with very efficient iterative computations.
引用
收藏
页码：890 / 894
页数：5
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