Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2015, Vol. 38 ›› Issue (3): 112-116.doi: 10.13190/j.jbupt.2015.03.019

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Joint Resource Allocation for Device-to-Device Communication Underlaying Cellular Networks

QU Hua1, ZHUANG Xiong1, ZHAO Ji-hong2, TANG Rui1   

  1. 1. School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
    2. School of Communication and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710061, China
  • Received:2014-09-16 Online:2015-06-28 Published:2015-06-28

Abstract:

For hybrid cellular network with underlaid device-to-device (D2D) communications, a joint power control and channel assignment optimization scheme was proposed for D2D communications. The system throughput of D2D communications was explicitly set as the optimization target together with the consideration for individual quality of service (QoS) requirement of both D2D links and cellular links. In this scheme, the power control part was dedicated to maximize system throughput under given channel assignment from channel assignment part, and channel assignment part adopts particle swarm optimization algorithm to obtain the optimal channel assignment for D2D links with help of power control part. It is shown that the proposed scheme will leverage the tradeoff between system throughput and the number of admitted D2D links, and meanwhile improves the aggregate throughput on condition that the QoS requirements of all admitted links are guaranteed.

Key words: device-to-device communication, resource allocation, particle swarm optimization, system throughput, the number of admitted links

CLC Number: