Optimal Power Allocation Algorithm for AF BAT Relaying
The Amplifier-and-Forward (AF) Bi-directional Amplification of Throughput (BAT) relaying is one of the promising techniques to enhance the throughput of the relay-based bidirectional transmission. However, the AF BAT protocol only works effectively at symmetric channels in the bi-directional scenarios. In order to further enhance the system performance in various channel propagations, we study the optimal power allocation algorithm for the AF BAT protocol in this paper. The numerical results show that significant performance improvement is achieved for the AF BAT relaying after the power allocation algorithm is applied, especially for the transmission in asymmetric channels. Furthermore, compared with the DF BAT relaying, the AF BAT protocol with optimal power allocation achieves higher spectrum efficiency and is more robust to the various channel propagations.
Li Li Yang Du
The Electromagnetics Academy at Zhejiang University Zhejiang University,Hangzhou 310027,China
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
1738-1742
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）