电子学报 ›› 2019, Vol. 47 ›› Issue (4): 769-774.DOI: 10.3969/j.issn.0372-2112.2019.04.001

• 学术论文 •    下一篇

D2D通信中联合链路共享与功率分配算法研究

田春生, 钱志鸿, 阎双叶, 付钰   

  1. 吉林大学通信工程学院, 吉林长春 130012
  • 收稿日期:2017-11-07 修回日期:2019-01-08 出版日期:2019-04-25 发布日期:2019-04-25
  • 通讯作者: 钱志鸿
  • 作者简介:田春生 男,1993年2月生于吉林梅河口,现为吉林大学通信工程学院博士研究生,研究方向为D2D通信技术与物联网.E-mail:tianchunsheng2011@163.com
  • 基金资助:
    国家自然科学基金(No.61771219);吉林大学基础研究项目(No.SXGJQY2017-9,No.2017TD-19);吉林大学研究生创新基金(No.101832018C022)

Research on Joint Link Sharing and Power Allocation Algorithm for Device-to-Device Communications

TIAN Chun-sheng, QIAN Zhi-hong, YAN Shuang-ye, FU Yu   

  1. College of Communication Engineering, Jilin University, Changchun, Jilin 130012, China
  • Received:2017-11-07 Revised:2019-01-08 Online:2019-04-25 Published:2019-04-25

摘要: 针对D2D (Device-to-Device,D2D)通信过程中的资源分配问题,提出一种联合链路共享和功率分配算法.在保证系统内蜂窝用户服务质量(Quality of Service,QoS)需求的前提下,利用系统的信道状态信息,为D2D用户生成一个由蜂窝用户组成的通信链路的候选集合;在通信链路候选集合内使用凸优化方法得到D2D用户最优功率分配策略;最后利用(Kuhn-Munkres,KM)算法求解最大加权二部图匹配(Maximum Weight Bipartite Matching,MWBM)问题,为D2D用户选择最优的蜂窝用户进行资源共享.仿真结果表明该算法能有效的提升通信网络的吞吐量,可以为D2D用户选择最优的资源分配策略.

关键词: D2D通信, 链路共享, 功率分配, 最大加权二部图匹配

Abstract: Considering resource allocation in Device-to-Device (D2D) communications,a joint link sharing and power allocation algorithm is proposed.On the premise of guaranteeing the Quality of Service (QoS) requirements of cellular users in the system,a candidate set of communication links composed of cellular users is generated for the D2D users by using the channel state information of the system.The optimal power allocation strategy for D2D users is obtained by using the convex optimization method in the candidate set of communication links.Finally,the Kuhn-Munkres (KM) algorithm is used to solve the maximum weight bipartite matching (MWBM) problem to find an optimal cellular user partner for each D2D pair to share the resources.Simulation results show that the proposed algorithm can significantly improve the throughput of the communication system and can select the optimal resource allocation strategy for D2D users.

Key words: device-to-device (D2D) communications, link sharing, power allocation, maximum weight bipartite matching (MWBM)

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