电子、通信与自动控制

无线携能协作传感器网络的能效研究

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  • 西安电子科技大学 通信工程学院,陕西 西安 710071
阔永红(1967-),女,博士,教授,主要从事无线通信与信号处理研究. E-mail:yhkuo@mail.xidian.edu.cn

收稿日期: 2017-03-31

  修回日期: 2017-07-27

  网络出版日期: 2017-10-31

基金资助

国家自然科学基金资助项目(61771366);高等学校学科创新引智计划项目(B30038)

Energy-Efficient Cooperative Transmission for SWIPT in WSNs

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  • School of Telecommunications Engineering,Xidian University,Xi'an 710071,Shaanxi,China
阔永红(1967-),女,博士,教授,主要从事无线通信与信号处理研究. E-mail:yhkuo@mail.xidian.edu.cn

Received date: 2017-03-31

  Revised date: 2017-07-27

  Online published: 2017-10-31

Supported by

Supported by National Natural Science Foundation of China(61771366)

摘要

针对携能协作传感器网络中电池容量受限以及网络能效较低的问题,提出了动态能量条件下的协作传输策略.首先,建立了基于节点电池能量有限的携能协作传感器网 络模型.其次,利用分式规划和对偶分解结合的分布式叠加算法求解凸优化问题,得到该模型下的最优资源分配策略.仿真分析结果表明,所提出的动态能量下协作策略获得了最大的能效,同时系统的吞吐量也保证在较高的水平.

本文引用格式

阔永红 周碧荣 陈健 . 无线携能协作传感器网络的能效研究[J]. 华南理工大学学报(自然科学版), 2017 , 45(12) : 36 -42 . DOI: 10.3969/j.issn.1000-565X.2017.12.006

Abstract

In the WSNs based on the cooperation of information and energy,the transmission power is constrained by the finite battery capacity and the lower energy efficiency.In order to solve these problems,a cooperation transmission strategy under dynamic energy acquisition is proposed.First,a cooperative transmission model for the SWIPT in the WSNs is constructed based on the finite battery capacity of nodes.Then,a distributed iteration algo- rithm integrating the fractional programming with the dual decomposition is proposed to solve a convex optimization problem,thus achieving the optimal allocation strategy corresponding to the constructed model.Simulation results and theoretical analysis show that the proposed cooperation transmission strategy achieves the maximum energy effi- ciency with a higher throughput.
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