通信学报 ›› 2017, Vol. 38 ›› Issue (2): 157-164.doi: 10.11959/j.issn.1000-436x.2017037

• 学术通信 • 上一篇    下一篇

LTE-A上行终端直通中面向能效的资源分配方案

朱正仓1,赵季红1,2,唐睿1,曲桦1,2,王璐瑶2,曹照鑫1   

  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
  • 修回日期:2016-12-05 出版日期:2017-02-01 发布日期:2017-07-20
  • 作者简介:朱正仓(1987-),男,安徽安庆人,西安交通大学硕士生,主要研究方向为D2D通信、车联网。|赵季红(1963-),女,陕西西安人,博士,西安交通大学教授、博士生导师,主要研究方向为新一代无线移动互联网、泛在网/物联网、异构融合网络、网络虚拟化。|唐睿(1987-),男,甘肃兰州人,西安交通大学博士生,主要研究方向为D2D通信、未来5G网络通信。|曲桦(1961-),男,河南陕县人,博士,西安交通大学教授、博士生导师,主要研究方向为移动互联网技术、泛在网技术与应用、网络的管理与控制技术、网络的异构和融合技术。|王璐瑶(1990-),女,山东菏泽人,西安交通大学硕士生,主要研究方向为D2D通信和异构网。|曹照鑫(1989-),男,重庆人,西安交通大学博士生,主要研究方向为毫米波通信和D2D通信。
  • 基金资助:
    国家自然科学基金资助项目(61372092);国家自然科学基金资助项目(61531013);国家高技术研究发展计划(“863”计划)基金资助项目(2014AA01A707)

Energy-efficient resource allocation scheme for device-to-device communication underlaying LTE-A uplink

Zheng-cang ZHU1,Ji-hong ZHAO1,2,Rui TANG1,Hua QU1,2,Lu-yao WANG2,Zhao-xin CAO1   

  1. 1 School Electronics and Information Engineering,Xi'an Jiaotong University,Xi'an 710049,China
    2 Department of Software,Xi'an Jiaotong University,Xi'an 710049,China
  • Revised:2016-12-05 Online:2017-02-01 Published:2017-07-20
  • Supported by:
    The National Natural Science Foundation of China(61372092);The National Natural Science Foundation of China(61531013);The National High Technol-ogy Research and Development Program of China (863 Program)(2014AA01A707)

摘要:

针对LTE-A上行蜂窝链路与终端直通链路间的同频干扰问题,提出一种联合资源分配方案来最大化D2D链路总能效。上述问题可分解为功率控制和信道分配2个子问题。其中,功率控制子问题可借助Dinkelbach法和拉格朗日对偶得到最优解;信道分配子问题等价于集装箱问题,属于NP难问题,因此,提出一种启发式算法,实现算法性能与复杂度之间的折中。仿真结果表明所提联合资源分配方案优于单一资源优化方案,此外,其具有多项式复杂度且其性能接近理论最优解。

关键词: 高级长期演进, 终端直通, 能效, 资源分配, 集装箱问题

Abstract:

To cope with the co-channel interference between cellular links and device-to-device (D2D) links concurrently transmitting with the long term evolution-advanced (LTE-A) uplink spectrum,a joint resource allocation scheme was pro-posed to maximize the global energy efficiency of D2D links.The above problem can be decomposed into the power control subproblem and the channel assignment subproblem.Specifically,the power control subproblem can be optimally solved with the help of Dinkelbach method and Lagrange duality.Based on the above results,the channel assignment subproblem turns out to be the set packing problem which was generally NP-hard problem,Therefore,a heuristic algo-rithm was further devised to achieve a tradeoff between performance and complexity.Simulations show that the proposed joint resource allocation scheme outperforms the ones where only single resource variable is optimized,and it achieves the polynomial-time complexity at only minor performance loss when compared to the global optimum.

Key words: LTE-A,device-to-device communication, energy efficiency, resource allocation, set packing problem

中图分类号: 

No Suggested Reading articles found!