J4 ›› 2014, Vol. 41 ›› Issue (2): 159-164.doi: 10.3969/j.issn.1001-2400.2014.02.026

• 研究论文 • 上一篇    下一篇

绿色节能的分布式中继分配算法

李云1;陈权1;刘期烈1;曹傧2   

  1. (1. 重庆邮电大学 移动通信技术重庆市重点实验室,重庆  400065;
    2. 电子科技大学 通信抗干扰技术国家重点实验室,四川 成都  610000)
  • 收稿日期:2012-12-30 出版日期:2014-04-20 发布日期:2014-05-30
  • 通讯作者: 李云
  • 作者简介:李云(1974-),男,教授,E-mail:liyun@cqupt.edu.cn.
  • 基金资助:

    国家基础研究计划(973)资助项目(2012CB316004);国家自然科学基金资助项目(61071118);重庆市科委重点实验室专项经费资助项目;重庆市自然科学基金资助项目(cstcjjA40039)

Distributed relay assignment method in green energy efficiency

LI Yun1;CHEN Quan1;LIU Qilie1;CAO Bin2   

  1. (1. Chongqing Key Lab. of Mobile Communications Technology, Chongqing Univ. of Posts and Communications, Chongqing  400065, China;
    2. National Key Lab. of Science and Technology on Communications, Univ. of Electronic Science and Technology of China, Chengdu  611731, China)
  • Received:2012-12-30 Online:2014-04-20 Published:2014-05-30
  • Contact: LI Yun

摘要:

中继协作传输不仅能在单天线情况下实现空间分集增益,而且不用提高发送功率,就能获得更大的传输速率,从而提升能效达到绿色节能的目的.协作通信的性能与中继节点分配有着密切关系,因此,如何分配中继节点成为一个研究热点.然而,现存的研究方法中大部分只关注分配节点带来的能效增益,忽略了采取协作后中继节点带来的干扰.为此,笔者综合考虑协作带来的增益与干扰,提出一种分布式中继节点分配算法(Distributed Relay Node Assignment Method,DRNAM),从而更合理地选择中继节点,有效地提升能效.仿真实验表明,DRNAM在固定的传输功率情况下,能明显提升系统性能.

关键词: 协作通信, 中继选择, 分集增益, 额外干扰

Abstract:

Recently, cooperative communication has been regarded as one of the most promising techniques, which can achieve the spatial diversity with one antenna. In cooperative communication, the energy efficiency could be improved with the fixed transmission power. The relay node has a significant effect on the performance of cooperation. Therefore, how to allocate relay nodes becomes an important issue which should be addressed. However, existing work just focuses on the advantage cooperation gain, with the adverse effect ignored. Moreover, the advantage cooperation gain might not cover the adverse effect. To this end, we propose a Distributed Relay Node Assignment Method (DRNAM), considering both advantage and adverse effects caused by cooperation. Based on simulation results, the DRNAM can improve the energy efficiency significantly.

Key words: cooperative communication, relay node selection, diversity gain, additional interference

中图分类号: 

  • TN