Wireless-Powered Sensor Networks: How to Realize

被引：86

作者：

Choi, Kae Won ^{[1
]}

Ginting, Lorenz ^{[2
]}

Rosyady, Phisca Aditya ^{[2
]}

Aziz, Arif Abdul ^{[2
]}

Kim, Dong In ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Informat & Commun Engn, Suwon 16419, South Korea

[2] Seoul Natl Univ Sci & Technol, Dept Comp Sci & Engn, Seoul 01811, South Korea

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2017年 / 16卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

RF energy transfer; WPCN; energy harvesting; microwave power transfer; sensor network; energy beamforming; duty cycling; SCALABLE ARCHITECTURE; MICROWAVE-POWER; COMMUNICATION; INFORMATION; DESIGN;

D O I：

10.1109/TWC.2016.2621766

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：

In this paper, we study a multi-antenna wireless-powered sensor network (WPSN), in which a power beacon wirelessly transfers electric energy to a sensor node via an electromagnetic wave. We have implemented a real-life multi-antenna WPSN testbed and conducted extensive experiments on the testbed. The key technology for the high-efficiency WPSN is an adaptive energy beamforming scheme that dynamically steers a microwave beam towards a sensor node. We propose a receive power-based channel estimation and energy beamforming algorithm. In addition, an adaptive duty cycle control algorithm is proposed to prevent energy storage of a sensor node from being depleted. The proposed duty cycle control algorithm is designed based on a proportional-integral-derivative controller. These algorithms are all implemented in the multi-antenna WPSN testbed. By experiments, we validate the feasibility of the multi-antenna WPSN, and show the performance of the proposed algorithms.

引用

页码：221 / 234

页数：14

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