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Journal of University of Chinese Academy of Sciences ›› 2022, Vol. 39 ›› Issue (1): 119-126.DOI: 10.7523/j.ucas.2020.0023

• Research Articles • Previous Articles    

Relay selection algorithm based on energy harvest in D2D communication

CHEN Guangzu1,2,3, HUANG Xinchen1,2, TAN Chong1,3, BU Zhiyong1,3   

  1. 1. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Key Laboratory of Wireless Sensor Networks and Communications, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2020-03-17 Revised:2020-04-27

Abstract: In order to select the relay node efficiently and energy-saving for D2D communication, we combine energy harvesting technology and D2D technology, build a D2D homogenous cell model based on energy harvesting, and propose a relay selection algorithm based on energy collection. Using energy harvesting technology to provide relay energy, the node is avoided from communication interruption or selection relay failure due to its low residual energy. Energy harvesting power and channel conditions are analyzed in the physical domain, and the appropriate relay in the alternative relay set is selected by the communication two-end node inspired by the human social campaign mechanism, so as to avoid the interruption of the entire communication caused by the relay meeting only one node requirement. The simulation results show that the algorithm proposed in this paper improves the probability of relay selection success, equipment survival time and system throughput compared with the prestige-based relay selection algorithm.

Key words: device-to-devicce communication, energy harvest, relay selection, campaign mechanism

CLC Number: