Energy Efficiency Maximization Strategy for Sink Node in SWIPT-Enabled Sensor-Cloud Based on Optimal Stopping Rules

作     者：Zhe Wang Lina Ge Taoshen Li Guifen Zhang Min Wu Zhe Wang;Lina Ge;Taoshen Li;Guifen Zhang;Min Wu

作者机构：Institute of Artificial IntelligenceGuangxi University for NationalitiesNanning 530004China Guangxi Key Laboratory of Hybrid Computation and IC Design AnalysisNanning 530006China School of ComputerElectronics and InformationGuangxi UniversityNanning 530006China Guangxi Power Grid Co.LtdNanning 530023China 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2021年第18卷第1期

页      面：222-236页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 080202[工学-机械电子工程] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 0802[工学-机械工程] 

基　　金：This work was supported by Scientific Research Ability Improving Foundation for Young and Middle-Aged University Teachers in Guangxi(No.2020KY04030) The school introduces talents to start scientific research projects(No.2019KJQD17) This work was supported in part by the National Natural Science Foundation of China(No.61762010,No.61862007) Guangxi Natural Science Foundation(No.2018GXNSFAA138147) 

主　　题：sensor-cloud SWIPT optimal stopping theory energy efficiency channel quality 

摘      要：Leveraging energy harvesting abilities in wireless network devices has emerged as an effective way to prolong the lifetime of energy constrained *** system gains are usually optimized by designing resource allocation algorithm ***,few works focus on the interaction that channel’s time-vary characters make the energy transfer *** address this,we propose a novel system operation sequence for sensor-cloud system where the Sinks provide SWIPT for sensor nodes opportunistically during downlink phase and collect the data transmitted from sensor nodes in uplink ***,the energy-efficiency maximization problem of the Sinks is presented by considering the time costs and energy consumption of channel *** is proved that the formulated problem is an optimal stopping process with optimal stopping *** optimal energy-efficiency(OEE)algorithm is designed to obtain the optimal stopping rules for ***,the simulations are performed based on the OEE algorithm compared with the other two strategies to verify the effectiveness and gains in improving the system efficiency.