Power Allocation for Bidirectional AF Relaying over Rayleigh Fading Channels
Power Allocation for Bidirectional AF Relaying over Rayleigh Fading Channels
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DOI：
10.1109/lcomm.2010.02.092227
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发表时间：
2010-02-01
期刊：
影响因子：
--
通讯作者：
Tafazolli, Rahim
中科院分区：
文献类型：
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作者：
Zhang, Yuanyuan;Ma, Yi;Tafazolli, Rahim
本文通过利用信道平均强度，提出了两种新的瑞利衰落信道双向放大转发（AF）中继功率分配方案。第一种方案的目标是最大化平均和率的上界，另一种方案的目标是实现两个终端之间中断概率的权衡。数值结果表明，与传统的功率分配方法相比，该方法的性能有很大提高。
This letter presents two novel power allocation schemes for bidirectional amplify-and-forward (AF) relaying over Rayleigh fading channels through the exploitation of channel mean strength. The first scheme aims to maximize the upper bound of average sum rate, and the other aims to achieve the trade-off of outage probability between two terminals. Numerical results show considerable performance improvement in comparison with conventional power allocation approaches.