Optimal Power Splitting in Two-Way Decode-and-Forward Relay Networks

被引：53
|
作者：
Peng, Chunling [1 ]
Li, Fangwei [1 ]
Liu, Huaping [2 ]
机构：
[1] Chongqing Univ Posts & Telecommun, Chongqing Key Lab Mobile Commun Technol, Chongqing 400065, Peoples R China
[2] Oregon State Univ, Sch Elect Engn & Comp Sci, Corvallis, OR 97331 USA
来源：
IEEE COMMUNICATIONS LETTERS | 2017年 / 21卷 / 09期
基金：
美国国家科学基金会;
关键词：
Relay networks; decode-and-forward; simultaneous wireless information and power transfer; sum-rate; WIRELESS INFORMATION; PROTOCOLS; CHANNELS;
D O I：
10.1109/LCOMM.2017.2671363
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This letter investigates simultaneous wireless information and power transfer in two-way decode-and-forward relay networks, where the relay is an energy-constrained node but is capable of harvesting energy from the radio frequency signal transmitted by the source nodes for forwarding its information. The achievable sum-rate of such network with the power splitting relay protocol is analyzed first. Then, the optimal design of the power allocated for energy harvesting and for information decoding in the sense of maximum achievable sum-rate is determined. Simulation results are presented to assess the influence of various system parameters. The performance of the optimal design is compared with that of amplify-and-forward relay protocols.
引用
收藏
页码：2009 / 2012
页数：4
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