电信科学 ›› 2016, Vol. 32 ›› Issue (9): 1-9.doi: 10.11959/j.issn.1000-0801.2016247

• 研究与开发 •    下一篇

设备直通中面向能效与用户公平性折中的联合功率控制和调度方案

曲桦1,2,王璐瑶2,赵季红1,3,唐睿1,朱正仓1,曹照鑫1,董姣姣3   

  1. 1 西安交通大学电子信息工程学院,陕西 西安 710049
    2 西安交通大学软件学院,陕西 西安 710049
    3 西安邮电大学通信与信息工程学院,陕西 西安 710061
  • 出版日期:2016-09-15 发布日期:2016-10-20
  • 基金资助:
    国家自然科学基金资助项目

Energy efficiency-user fairness tradeoff for device-to-device communication via joint power control and scheduling

Hua QU1,2,Luyao WANG2,Jihong ZHAO1,3,Rui TANG1,Zhengcang ZHU1,Zhaoxin CAO1,Jiaojiao DONG3   

  1. 1 School of Electronics and Information Engineering,Xi’an Jiaotong University,Xi’an 710049,China
    2 School of Software Engineering,Xi’an Jiaotong University,Xi’an 710049,China
    3 School of Telecommunication and Information Engineering,Xi’an University of Posts&Telecommunications,Xi’an 710061,China
  • Online:2016-09-15 Published:2016-10-20
  • Supported by:
    The National Natural Science Foundation of China

摘要:

设备直通通信作为5G系统中的关键技术之一,可显著提高系统侧和用户侧性能。但目前已有研究主要侧重优化前者。基于此,提出了一种联合时频域调度和功率控制机制,以实现系统能效与用户公平性间的折中。该机制包括功率控制和时频域调度两部分,其中,功率控制最大化D2D用户能效值;时频域调度确定任意时刻应接入的D2D用户数以及各自的信道资源。此外,借助比例公平思想动态更新匹配所需效用值。通过仿真,验证了所提联合机制的优势,并观察了系统整体能效和用户公平间的折中关系。

关键词: 设备直通通信, 能效, 用户公平性, 功率控制, 时频域调度

Abstract:

Device-to-device(D2D)communication is a promising component in the fifth generation systems,and it can significantly improve both system-side and user-side performance.However,the prior works are mainly focused on addressing the system-side metrics.Therefore,a balance was struck between EE and UF by joint consideration of power control(PC)and temporal and spectral scheduling(TSS).Specifically,PC was intended to maximize the EE of the D2D user.Based on the above results,TSS determined the set of admitted D2D users and their allocated spectral resources.Moreover,the weights were updated by the idea of proportional fairness dynamically.Finally,the numerical results show the efficiency of the efficiency mechanism and the tradeoff between EE and UF.

Key words: device-to-devicecommunication, energyefficiency, userfairness, powercontrol, temporalandspectralscheduling

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