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清华大学学报(自然科学版)  2017, Vol. 57 Issue (12): 1296-1302    DOI: 10.16511/j.cnki.qhdxxb.2017.21.028
  电子工程 本期目录 | 过刊浏览 | 高级检索 |
终端直接通信中基于统计QoS保证的资源优化
米翔, 赵明, 许希斌, 王京
清华大学 电子工程系, 微波与数字通信技术国家重点实验室, 清华信息科学与技术国家实验室, 北京 100084
Resource optimization for D2D communications based on statistical QoS provisioning
MI Xiang, ZHAO Ming, XU Xibin, WANG Jing
Tsinghua National Laboratory for Information Science and Technology, State Key Laboratory on Microwave and Digital Communications, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
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摘要 终端直通(device-to-device,D2D)通信技术已成为第五代移动通信(5G)中的关键技术。资源分配直接关系着D2D通信的质量,是D2D通信中的重要研究内容。该文研究了正交频分多址接入(orthogonal frequency division multiple access,OFDMA)蜂窝网络中的D2D通信,用统计服务质量(quality-of-service,QoS)保证来刻画用户的时延需求,在保证蜂窝用户的干扰门限要求下,以最大化统计带QoS保证的系统吞吐量为目标,提出了有效的资源分配算法。通过Lagrange方法求解原始优化问题,提出了交替式优化算法和渐进凸近似算法。仿真表明,所提方案能有效提升系统性能。
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米翔
赵明
许希斌
王京
关键词 无线通信终端直接通信资源分配功率控制统计服务质量保证    
Abstract:Device-to-device (D2D) communications are a key technology in fifth generation (5G) cellular networks. Resource allocation is critical to the D2D communication performance and is a key research topic. This study considers D2D communications in orthogonal frequency division multiple access (OFDMA) based cellular networks where the user delay requirements are characterized by the statistical quality-of-service (QoS) provisioning. An effective resource allocation scheme is given to maximize the QoS-guaranteed system throughput while guaranteeing the interference threshold requirements of the cellular users. The original optimization problem is solved using the Lagrange approach with algorithms based on an alternating optimization method and a successive convex approximation method. Simulations show that the resource allocation scheme significantly improves the system performance.
Key wordswireless communication    device-to-device (D2D) communications    resource allocation    power control    statistical quality-of-service (QoS) provisioning
收稿日期: 2017-01-23      出版日期: 2017-12-15
ZTFLH:  TN929.5  
通讯作者: 王京,教授,E-mail:wangj@tsinghua.edu.cn     E-mail: wangj@tsinghua.edu.cn
引用本文:   
米翔, 赵明, 许希斌, 王京. 终端直接通信中基于统计QoS保证的资源优化[J]. 清华大学学报(自然科学版), 2017, 57(12): 1296-1302.
MI Xiang, ZHAO Ming, XU Xibin, WANG Jing. Resource optimization for D2D communications based on statistical QoS provisioning. Journal of Tsinghua University(Science and Technology), 2017, 57(12): 1296-1302.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2017.21.028  或          http://jst.tsinghuajournals.com/CN/Y2017/V57/I12/1296
  图1 系统模型
  图2 Σi∈Dλiθ 的关系
  图3 Σi∈Dλi与I t h 的关系
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