Blind signal recovery in multiuser MIMO-OFDM system

被引：0
|
作者：
Guo, B [1 ]
Lin, H [1 ]
Yamashita, K [1 ]
机构：
[1] Osaka Prefecture Univ, Grad Sch Engn, Sakai, Osaka 591, Japan
来源：
2004 47TH MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL II, CONFERENCE PROCEEDINGS | 2004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：
A novel blind signal recovery method for MIMO-OFDM system is proposed. This method is based on an application of existing blind source separation (BSS) algorithms to the detection of the signals in OFDM system with multiple transmit-and-receive antenna, where the transmission can be treated as a set of instantaneous mixtures from the frequency bin (FB) viewpoint. Although the BSS algorithm can successfully separate different user signals at FB level, the permutation indeterminacy nature of BSS algorithm hinder the signal recomposition from the separated signals. A method taking advantage of the statistic characteristics of the transmitted signals is proposed to overcome these obstacles. Also the validity of the proposed method is demonstrated by computer simulations.
引用
收藏
页码：637 / 640
页数：4
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