Journal of Applied Sciences ›› 2020, Vol. 38 ›› Issue (6): 871-881.doi: 10.3969/j.issn.0255-8297.2020.06.004

• Communication Engineering • Previous Articles    

D2D Communication Relay Selection Algorithm Based on Game Theory

PENG Yi, ZHANG Shen, ZHU Hao, LI Qiqian   

  1. Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650504, Yunnan, China
  • Received:2019-09-10 Published:2020-12-08

Abstract: To solve the problem of poor communication quality and high probability of communication interruption when the distance between the source node and the destination node is too large in D2D communication, this paper presents an algorithm of D2D communication relay selection based on game theory. Based on distance loss, the algorithm firstly defines the location region of the relay, and then analyzes the forwarding ability of the candidate nodes considering the communication interruption caused by too low energy. The candidate relay sets are obtained through filtering, consider the relationships between the nodes at the same time, the interruption of communication is analyzed, and finally the optimal relay nodes are selected by game theory source nodes for data transmission. Simulation results show that compared with the random selection algorithm and the optimal relay selection algorithm based on channel state information, the proposed algorithm can effectively improve the coverage of D2D communication, reduce the interrupt probability of communication links, improve the overall throughput of the system and improve the stability of the relay system.

Key words: social relationship, relay assistance, relay selection, game theory

CLC Number: