Non-regenerative MIMO Relaying Strategies — from Single to Multiple Cooperative Relays
In this paper, we study the performance of various amplify-and-forward (AF) relaying strategies in terms of ergodic capacity and bit-error-rate (BER) for single-user MIMO channels with single and multiple relays. We first consider some hybrid methods for the single-relay channel and compare their performance with previously proposed methods under various signal-tonoise ratio (SNR) regimes. We then extend these hybrid methods to multiple-relay channels and unveil that they can exceed SVDbased optimum methods in this case. Finally, we propose new multiple-relay strategies based on a cooperative minimum mean square error (CMMSE) criterion. Through simulations, we show that the new hybrid methods can outperform existing ones in the multiple-relay channel, at the price of a slight increase in implementation complexity.
Chao Zhao Beno(i)t Champagne
Department of Electrical and Computer Engineering, McGill University 3480 University, Montreal, QC, Canada, H3A 2A7
国际会议
上海
英文
1-6
2010-10-20（万方平台首次上网日期，不代表论文的发表时间）