Journal of South China University of Technology (Natural Science Edition) ›› 2017, Vol. 45 ›› Issue (12): 36-42.doi: 10.3969/j.issn.1000-565X.2017.12.006

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Energy-Efficient Cooperative Transmission for SWIPT in WSNs

KUO Yong-hong ZHOU Bi-rong CHEN Jian   

  1. School of Telecommunications Engineering,Xidian University,Xi'an 710071,Shaanxi,China
  • Received:2017-03-31 Revised:2017-07-27 Online:2017-12-25 Published:2017-10-31
  • Contact: 陈健(1968-)，男，博士，教授，主要从事无线通信与信号处理研究． E-mail:jianchen@mail.xidian.edu.cn
  • About author: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
  • Supported by:
    Supported by National Natural Science Foundation of China(61771366)

PDF

294

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.

Key words: energy-efficient, cooperation relay, simultaneous wireless information and power transfer, wireless sensor networks, dynamic energy

CLC Number: