Optimal Power Allocation for Dual-Hop Full-Duplex Decode-and-Forward Relay

被引：28
|
作者：
Chen, Lei [1 ]
Han, Shuai [1 ]
Meng, Weixiao [1 ]
Li, Cheng [2 ]
机构：
[1] Harbin Inst Technol, Commun Res Ctr, Harbin 150001, Peoples R China
[2] Mem Univ Newfoundland, Fac Engn, St John, NF A1B 3X5, Canada
来源：
IEEE COMMUNICATIONS LETTERS | 2015年 / 19卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Full-duplex; dual-hop relay; power allocation;
D O I：
10.1109/LCOMM.2014.2386336
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
The full-duplex relayed transmission is an expansion of relay technique. In this paper, we investigate an optimal power allocation strategy for the dual-hop full-duplex decode-and-forward (DF) relay system with joint constraint of individual and global power. We prove that the optimal allocation solution is located on the three boundary conditions of the constraint domain. The golden section search algorithm is used to obtain the highly accurate numerical solution of the optimal allocation strategy. Simulation results indicate that the optimal power allocation strategy enhances the outage performance.
引用
收藏
页码：471 / 474
页数：4
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