Joint channel estimation and data detection in space-time communications

被引：108

作者：

Cozzo, C ^{[1
]}

Hughes, BL

机构：

[1] RTP, Ericsson Res, Res Triangle Pk, NC 27709 USA

[2] N Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27695 USA

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2003年 / 51卷 / 08期

基金：

美国国家科学基金会;

关键词：

expectation-maximization (EM) algorithm; fading channels; iterative receivers; joint detection and estimation; space-time coding; transmit diversity;

D O I：

10.1109/TCOMM.2003.815062

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 letter considers joint channel estimation and data sequence detection for multipath radio channels with multiple antennas at the transmitter and/or receiver. An iterative space-time receiver based on the expectation-maximization algorithm is proposed. We examine the performance of this receiver on Rayleigh fading channels for transmit diversity and space-time coding methods. Simulation results show that the receiver can often achieve near-coherent performance with modest complexity and using very few pilot symbols.

引用

页码：1266 / 1270

页数：5

共 24 条

[1] A simple transmit diversity technique for wireless communications [J].