Energy Efficiency Analysis of Bidirectional Wireless Information and Power Transfer for Cooperative Sensor Networks

被引：3

作者：

Chen, Ruirui ^{[1
]}

Sun, Yanjing ^{[1
,2
]}

Chen, Yan ^{[1
]}

Zhang, Xiaoguang ^{[1
]}

Li, Song ^{[1
]}

Sun, Zhi ^{[1
,3
]}

机构：

[1] China Univ Min & Technol, Sch Informat & Control Engn, Xuzhou 221116, Jiangsu, Peoples R China

[2] Xian Univ Sci & Technol, Sch Commun & Informat Engn, Xian 710054, Shaanxi, Peoples R China

[3] SUNY Buffalo, Dept Elect Engn, Buffalo, NY 14260 USA

来源：

IEEE ACCESS | 2019年 / 7卷

基金：

中国国家自然科学基金;

关键词：

Energy efficiency; wireless power transfer; decode-and-forward; power splitting; time switching; RESOURCE-ALLOCATION; OPTIMIZATION; MAXIMIZATION;

D O I：

10.1109/ACCESS.2018.2888694

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we study the energy efficiency of bidirectional wireless information and power transfer in cooperative sensor networks, where the relay node can decode and forward information from the sensor node (SN) to base station (BS), and assist the wireless power transfer from the BS to SN. For the power splitting protocol, we propose the joint power allocation scheme to maximize the energy efficiency. For the time switching protocol, the optimal power allocation strategy and the optimal time allocation scheme are derived by studying the derivative of the energy efficiency. Simulation results are provided to verify the performance of our proposed schemes for the cooperative sensor networks.

引用

页码：4905 / 4912

页数：8

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