Computationally efficient channel estimation for space-time block coded system

被引：0

作者：

Sheng, JG ^{[1
]}

Nallanathan, A ^{[1
]}

Tjhung, TT ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 119260, Singapore

来源：

57TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, VTC 2003-SPRING, VOLS 1-4, PROCEEDINGS | 2003年

关键词：

space-time coding; estimation and detection; DEML estimator;

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：

Space-Time coding has been proposed in recent years to provide significant capacity gains over traditional communication systems in wireless fading channels. Most works on Space-Time coding assume availability of perfect channel state information (CSI) in the receiver. In this paper, a decoupled maximum likelihood (DEML) channel estimator is presented for Space-Time block coded (STBC) system. The DEML estimator decouples the multi-dimensional problem of the exact maximum likelihood (ML) estimator to a set of one-dimensional problems and, hence, is computationally efficient. An iterative ML detector is proposed to improve the performance of DEML estimator. Simulation results are presented to demonstrate the performance of proposed channel estimator and to make comparisons with perfect channel information system.

引用

页码：2614 / 2617

页数：4

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