计算机工程 ›› 2017, Vol. 43 ›› Issue (12): 78-82.doi: 10.3969/j.issn.1000-3428.2017.12.015

• 移动互联与通信技术 • 上一篇    下一篇

一种基于比例公平的启发式D2D资源分配方案

王俊涛 1,2,李慧 1,卜智勇 1,3   

  1. (1.中国科学院上海微系统与信息技术研究所 宽带无线技术实验室,上海 200050; 2.上海科技大学,上海 201210;3.上海瀚讯无线技术有限公司,上海 200335)
  • 收稿日期:2016-10-09 出版日期:2017-12-15 发布日期:2017-12-15
  • 作者简介:王俊涛(1990—),男,硕士研究生,主研方向为宽带无线通信;李慧(通信作者),副研究员、博士;卜智勇,研究员、博士。
  • 基金项目:
    国家高技术研究发展计划项目“5G无线网络认知与虚拟化关键技术研究与验证”(2015AA01A705);中国科学院战略性先导科技专项(A类)“服务于海云计算的无线传输技术研究”(XDA06011100)。

A Heuristic D2D Resource Allocation Scheme Based on Proportional Fairness

WANG Juntao 1,2,LI Hui 1,BU Zhiyong 1,3   

  1. (1.Broadband Wireless Technology Lab,Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences,Shanghai 200050,China; 2.ShanghaiTech University,Shanghai 201210,China; 3.Jushri Technologies Co.,Ltd.,Shanghai 200335,China)
  • Received:2016-10-09 Online:2017-12-15 Published:2017-12-15

摘要: 在蜂窝网络中引入设备与设备(D2D)通信可解决频谱资源匮乏的问题,但移动多媒体业务的多样化使用户带宽需求日益增长。为此,在比例公平调度算法的基础上设计启发式D2D资源分配方案。根据D2D对优先级从高到低的顺序逐一调度,同时禁止已满足数据速率需求的D2D对与其他D2D对竞争资源块,保证信道状态较差的D2D对获得被调度机会。当所有D2D对的数据速率需求都被满足时,调整用户优先级,在最大化系统吞吐量与保证用户被调度的公平性之间进行折中。仿真结果表明,该方案可以保证D2D通信对数据速率的需求,提升系统吞吐量,同时兼顾用户被调度的公平性。

关键词: 蜂窝用户, 设备与设备通信, 数据速率需求, 比例公平, 资源分配

Abstract: Device-to-Device(D2D) communication is an effective technique to solve the shortage of spectrum resources in cellular networks.With the increasing diversification of mobile multi-media services,users need more bandwidth.Aiming at this problem,this paper proposes a heuristic D2D resource allocation scheme based on Proportional Fairness(PF) scheduling algorithm.According to the D2D pairs’ priority in descending order,it allocates resources for D2D pairs one by one.Simultaneously,to ensure that D2D pairs with poor channel state can be scheduled,D2D pairs whose data rate requirements are satisfied are prohibited to reuse Resource Block(RB).When all D2D pairs’ data rate requirements are satisfied,users’ priority will be readjusted to improve the system throughput as much as possible.Simulation results show that the proposed scheme can guarantee the data rate requirements of D2D pairs and improve the throughput of the system while taking into account fairness between different D2D pairs.

Key words: cellular user, Device-to-Device(D2D) communication, data rate requirement, Proportional Fairness(PF), resource allocation

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