Computer Science ›› 2018, Vol. 45 ›› Issue (10): 78-82.doi: 10.11896/j.issn.1002-137X.2018.10.015

• Network & Communication • Previous Articles     Next Articles

Radio Resource Optimization Mechanism Based on Time-reversal in Device-to-Device Communication Network

LI Fang-wei, ZHANG Lin-lin, ZHU Jiang   

  1. Chongqing Key Lab of Mobile Communications Technology,Chongqing University of Posts and Telecommunications,Chongqing 400065,China
  • Received:2017-09-18 Online:2018-11-05 Published:2018-11-05

Abstract: Aiming at the interference between D2D users and cellular users in D2D heterogeneous wireless communication network,this paper proposed a radio resource optimization mechanism based on time-reversal.The mechanism includes two procedures:1)the time-reversal mirror is combined to realize interference cancellation in the uplink transmission system,namely,the channel signature is performed for each user,so as to extract useful signals and remove interference while getting the SINR(Signal and Interference to Noise Ratio)of system users;2)according to SINR,a power control algorithm is adopted to adjust user transmission power in combination with the convex optimization theory to maximize the throughput of system.Simulation results show that the proposed mechanism effectively suppresses mutual interference between cellular users and D2D users in the heterogeneous network,improves the system capacity,satisfies the requirement of reliability of communication,and ensures that users can obtain higher QoS(Quality of Service).

Key words: Device-to-Device, Power control, Quality of service, Time-reveral

CLC Number: 

  • TN929.5
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