Collaborative Charging Scheduling in Wireless Charging Sensor Networks  

作　　者：Qiuyang Wang Zhen Xu Lei Yang 

机构地区：[1]School of Electrical and Electronic Engineering,Wuhan Polytechnic University,Wuhan,430048,China

出　　处：《Computers, Materials & Continua》2024年第4期1613-1630,共18页计算机、材料和连续体（英文）

基　　金：Hubei Provincial Natural Science Foundation of China under Grant No.2017CKB893;Wuhan Polytechnic University Reform Subsidy Project Grant No.03220153.

摘　　要：Wireless sensor networks (WSNs) have the trouble of limited battery power, and wireless charging provides apromising solution to this problem, which is not easily affected by the external environment. In this paper, we studythe recharging of sensors in wireless rechargeable sensor networks (WRSNs) by scheduling two mobile chargers(MCs) to collaboratively charge sensors. We first formulate a novel sensor charging scheduling problem with theobjective of maximizing the number of surviving sensors, and further propose a collaborative charging schedulingalgorithm(CCSA) for WRSNs. In the scheme, the sensors are divided into important sensors and ordinary sensors.TwoMCs can adaptively collaboratively charge the sensors based on the energy limit ofMCs and the energy demandof sensors. Finally, we conducted comparative simulations. The simulation results show that the proposed algorithmcan effectively reduce the death rate of the sensor. The proposed algorithm provides a solution to the uncertaintyof node charging tasks and the collaborative challenges posed by multiple MCs in practical scenarios.

关 键 词：Wireless rechargeable sensor network mobile charger collaborative charging adaptive charging 

分 类 号：TN92[电子电信—通信与信息系统] TP212[电子电信—信息与通信工程]