Journal on Communications ›› 2020, Vol. 41 ›› Issue (3): 71-79.doi: 10.11959/j.issn.1000-436x.2020048

• Papers • Previous Articles     Next Articles

Research on maximizing energy efficiency for relay-aided D2D communication

Xue WANG1,Tao JIN1,Zhihong QIAN1,Liangshuai HU1,Xin WANG1,2   

  1. 1 College of Communication Engineering,Jilin University,Changchun 130012,China
    2 College of Information &Technology,Jilin Agricultural University,Changchun 130118,China
  • Revised:2020-02-20 Online:2020-03-25 Published:2020-03-31
  • Supported by:
    The National Natural Science Foundation of China(61771219);Fundamental Research Funds of Jilin University(SXGJQY2017-9);Fundamental Research Funds of Jilin University(2017TD-19)

Abstract:

In order to optimize the energy efficiency for relay-aided D2D communication underlaying cellular network,an algorithm was proposed while guaranteeing the quality of service of D2D users and cellular users.Firstly,the problem was formulated as a mixed integer nonlinear fractional programming problem,with the goal of maximizing the energy efficiency of all D2D users.Then,the maximizing energy efficiency problem was divided into three sub-problems,such as power allocation,relay selection and subcarrier assignment.Finally,the power allocation problem,the relay selection problem and the subcarrier assignment problem were addressed by Dinkelbach method and Lagrange multiplier method,Q-learning and Hungarian algorithm,respectively.The simulation results show that the proposed algorithm can improve the total energy efficiency of D2D users compared with existing algorithms.

Key words: D2D communication, relay selection, power control, subcarrier assignment, energy efficiency

CLC Number: 

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