Both Minimum MSE and Maximum SNR Channel Training Designs for MIMO AF Multi-Relay Networks with Spatially Correlated Fading

被引：5

作者：

Kang, Jae-Mo ^{[1
]}

Kim, Hyung-Myung ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Elect Engn, Taejon 305701, South Korea

来源：

IEEE SIGNAL PROCESSING LETTERS | 2015年 / 22卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

Channel estimation; MIMO; MSE; multi-relay network; SNR; training design; WIRELESS; AMPLIFY;

D O I：

10.1109/LSP.2015.2442587

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 proposes channel training designs for two-hop multi-relay networks, where a source, a destination and multiple amplify-and-forward (AF) relays are all equipped with multi-antenna, based on mean square error (MSE) and signal-to-noise ratio (SNR) criteria with taking into account spatial fading correlation between multiple-input multiple-output (MIMO) channel elements. The minimum MSE and maximum SNR channel estimators are initially derived and, then, optimal structures on source training signal and relay matrices are determined. An iterative and a closed-form power allocation solutions are proposed for both channel estimators. Simulation results show that the proposed schemes outperform the conventional schemes.

引用

页码：1888 / 1892

页数：5

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