Power Allocation and Relay Selection in Relay Networks: A Perturbation-Based Approach

被引：4
|
作者：
Singh, Keshav [1 ,2 ]
Ku, Meng-Lin [1 ]
Lin, Jia-Chin [1 ]
机构：
[1] Natl Cent Univ, Dept Commun Engn, Taoyuan 32001, Taiwan
[2] Univ Edinburgh, Sch Engn, Edinburgh EH8 9YL, Midlothian, Scotland
来源：
IEEE SIGNAL PROCESSING LETTERS | 2017年 / 24卷 / 09期
关键词：
Power allocation; relay networks; relay selection; COOPERATION; SINGLE;
D O I：
10.1109/LSP.2017.2723928
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：
A perturbation-based power allocation and multirelay selection approach is proposed for multiple-input multipleoutput relay networks in multipath fading channels. In this approach, the relays are partitioned into two groups according to Lagrangian multipliers of power constraints. The power allocation for the relays is perturbed by increasing the power for the potential relay's group, while decreasing the power of the relays in the other group. An optimization framework is then formulated as a tradeoff between the relay selection and themean square error performance degradation. Computer simulations are used to demonstrate the performance.
引用
收藏
页码：1328 / 1332
页数：5
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