北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2015, Vol. 38 ›› Issue (3): 112-116.doi: 10.13190/j.jbupt.2015.03.019

• 研究报告 • 上一篇    下一篇

蜂窝网络下设备到设备通信中的联合资源优化

曲桦1, 庄雄1, 赵季红2, 唐睿1   

  1. 1. 西安交通大学 电子与信息工程学院, 西安 710049;
    2. 西安邮电大学 通信与信息工程学院, 西安 710061
  • 收稿日期:2014-09-16 出版日期:2015-06-28 发布日期:2015-06-28
  • 作者简介:曲 桦(1961—), 男, 教授, 博士生导师, E-mail: gh@mail.xjtu.edu.cn.
  • 基金资助:

    国家高技术研究发展计划(863计划)项目(2014AA01A701)

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

摘要:

在蜂窝与设备到设备通信混合网络下,把设备到设备通信的系统吞吐量作为优化目标,同时考虑设备到设备链路和蜂窝链路的服务质量,提出了一种联合功率控制和信道分配的优化方案. 在该方案中,信道分配部分采用粒子群优化算法,并在功率控制部分的帮助下来为设备到设备链路分配最优的复用信道;功率控制部分针对信道分配部分给定的信道分配,通过优化链路发射功率来最大化系统吞吐量. 仿真结果表明,所提联合优化方案权衡了系统吞吐量和接入链路数性能之间的折中关系,在保证所有接入链路服务质量的前提下提升了系统整体性能.

关键词: 设备间通信, 资源分配, 粒子群优化, 系统吞吐量, 接入链路数

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

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