Distributed Energy Beamforming for Simultaneous Wireless Information and Power Transfer in the Two-Way Relay Channel

被引：53

作者：

Fang, Zhaoxi ^{[1
]}

Yuan, Xiaojun ^{[2
]}

Wang, Xin ^{[3
,4
]}

机构：

[1] Zhejiang Wanli Univ, Dept Commun Engn, Ningbo, Zhejiang, Peoples R China

[2] ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai, Peoples R China

[3] Fudan Univ, Dept Commun Sci & Engn, Shanghai 200433, Peoples R China

[4] Florida Atlantic Univ, Dept Comp & Elect Engn & Comp Sci, Boca Raton, FL 33431 USA

来源：

IEEE SIGNAL PROCESSING LETTERS | 2015年 / 22卷 / 06期

关键词：

Distributed energy beamforming; energy harvesting; two-way relay channel;

D O I：

10.1109/LSP.2014.2365718

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：

Energy harvesting is an emerging solution to prolong the lifetime of energy-constrained nodes in wireless networks. This letter develops a novel distributed energy beamforming scheme for realizing simultaneous wireless information and power transfer in the two-way relay channel (TWRC), where two source nodes exchange information via an energy-harvesting relay node. We investigate the optimal transceiver design to maximize the achievable sum-rate of the TWRC. We also propose a low-complexity power-splitting based suboptimal scheme with closed-form solution. Numerical results demonstrate significant performance improvement of the proposed schemes over the conventional powersplitting based scheme.

引用

页码：656 / 660

页数：5

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