Power Allocation Algorithm in Amplify-and-Forward Relay Networks

被引：0
|
作者：
Sun, Huan [1 ]
Wang, Dongming [1 ]
Meng, Sheng [1 ]
You, Xiaohu [1 ]
机构：
[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China
来源：
2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31 | 2008年
关键词：
Amplify-and forward; power allocation; relay networks;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this paper, the problem of power allocation in the amplify-and-forward (AF) cooperative network is investigated based on the achievable maximum signal-to-noise ratio at the destination node. With assumptions that the source node has the perfect channel state information, optimal power allocation algorithms are developed for the relay networks under two scenarios: the full cooperative scheme with direct transmission (DT) from source node to destination node and relay cooperative scheme without DT. With the proposed optimal power allocation algorithm, simulation results demonstrate that the performance of AF relay networks can be significantly improved.
引用
收藏
页码：3127 / 3130
页数：4
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