吉林大学学报(工学版) ›› 2020, Vol. 50 ›› Issue (1): 306-314.doi: 10.13229/j.cnki.jdxbgxb20180935

• 通信与控制工程 • 上一篇    

基于联合优化的D2D资源分配算法

刘毅1,2(),肖玲玲1,王改静1,张武军1   

  1. 1. 西安电子科技大学 综合业务网理论及关键技术国家重点实验室, 西安 710071
    2. 中国电子科技集团公司 数据链技术重点实验室, 西安710068
  • 收稿日期:2018-09-13 出版日期:2020-01-01 发布日期:2020-02-06
  • 作者简介:刘毅（1978-），男，教授，博士生导师. 研究方向：宽带无线通信. E-mail: yliu@xidian.edu.cn
  • 基金资助:
    国家自然科学基金项目(61671341);中国电子科技集团公司数据链技术重点实验室开放基金项目(CLDL-20182412)

Resource allocation algorithm based joint optimization for D2D communications in cellular networks

Yi LIU1,2(),Ling-ling XIAO1,Gai-jing WANG1,Wu-jun ZHANG1   

  1. 1. State Key Laboratory of Integrated Service Network, Xidian University, Xi'an 710071, China
    2. Key Laboratory of Data Link, China Electronics Technology Group Corporation, Xi'an 710068, China
  • Received:2018-09-13 Online:2020-01-01 Published:2020-02-06

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摘要：

针对多蜂窝用户和多D2D用户共存场景下的干扰和能量消耗问题，建立了D2D用户在半双工或全双工两种模式中选择的混合双工系统模型，并提出了一种基于多角度联合优化的容量最大化D2D资源分配算法。该算法首先在保障蜂窝用户通信质量的基础上，通过联合优化用户的接入控制、功率分配、双工模式选择和信道分配，实现了系统容量的最大化，仿真结果表明本文算法可显著提高蜂窝网络的系统容量。

关键词: 通信技术, D2D通信, 资源分配, 联合优化, 双工模式选择

Abstract:

In cellular networks with D2D systems, high energy cost and interference between cellular users and D2D users become critical and need to be properly handled. In this paper, we present a hybrid-duplex system model where D2D users can switch the duplex mode between half-duplex and full-duplex. Then a resource allocation scheme based on multi-element joint optimization is proposed. The algorithm first guarantees the quality of service (QoS) of cellular users and then maximizes the system capacity through the joint optimal allocation of the user's access control, power allocation, duplex mode selection and channel allocation. Simulation results show that the proposed scheme can improve the overall performance of the networks greatly.

Key words: communication technology, D2D communications, resource allocation, joint optimization, duplex mode selection

中图分类号: 

  • TN929.5

图1

系统模型"

图2

判断流程图"

图3

优化问题Q1功能变量可行域"

图4

系统速率随剩余自干扰系数η的变化曲线"

图5

不同η系统速率随D2D通信最大距离的变化曲线"

图6

蜂窝用户和D2D用户的速率累积分布图"

图7

不同d max值下D2D用户的速率累积分布图"

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