华南理工大学学报(自然科学版) ›› 2011, Vol. 39 ›› Issue (12): 20-24,31.

• 电子、通信与自动控制 • 上一篇    下一篇

基于干扰避免的联合功率控制中继选择策略

胡洁1,2 冯穗力1 卢丹松3   

  1. 1.华南理工大学 电子与信息学院,广东 广州 510640; 2.华南农业大学 工程学院,广东 广州 510642;3.中国移动通信集团 广东有限公司,广东 广州 510100
  • 收稿日期:2011-06-20 修回日期:2011-08-30 出版日期:2011-12-25 发布日期:2011-11-04
  • 通信作者: 胡洁(1980-) ,女,博士生,主要从事宽带无线网络资源分配研究. E-mail:hjgz79@scau.edu.cn
  • 作者简介:胡洁(1980-) ,女,博士生,主要从事宽带无线网络资源分配研究.
  • 基金资助:

    国家自然科学基金资助项目( 61001113)

Combined Relay Selection and Power Control Algorithm Based on Interference Avoidance

Hu Jie1,2  Feng Sui-liLu Dan-song3   

  1. 1. School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China; 2. College of Engineering,South China Agricultural University,Guangzhou 510642,Guangdong,China; 3. China Mobile Group Guangdong Co.,Ltd.,Guangzhou 510100,Guangdong,China
  • Received:2011-06-20 Revised:2011-08-30 Online:2011-12-25 Published:2011-11-04
  • Contact: 胡洁(1980-) ,女,博士生,主要从事宽带无线网络资源分配研究. E-mail:hjgz79@scau.edu.cn
  • About author:胡洁(1980-) ,女,博士生,主要从事宽带无线网络资源分配研究.
  • Supported by:

    国家自然科学基金资助项目( 61001113)

摘要: 多节点大规模网络的中继传输存在额外干扰.为此,文中基于干扰模型提出一种联合功率控制的中继选择策略,即通过定义干扰系数和为中继节点建立干扰列表,在每次迭代中选取干扰系数最大的中继来进行功率调整,从而获得容量最大的无干扰中继.仿真结果表明: 相比不考虑干扰的中继选择策略及避免干扰的用户协商中继选择策略,联合功率控制的中继选择策略能获得更大的网络容量; 干扰的影响越大,文中提出的策略的作用越明显.

关键词: 协作通信, 中继选择, 功率控制, 干扰避免

Abstract:

In order to eliminate extra interferences during the relay transmission in large-scale wireless networks,a combined relay selection and power control algorithm is proposed based on the interference model. In this algorithm,with the help of the defined interference coefficient and the interference list for the relay node,the relay with the maximum interference coefficient is selected to adjust the power of the relay in each iteration. Thus,a noninterference relay with the largest capacity is obtained. Simulated results indicate that,as compared with the relay selection algorithm without interference consideration or with interference avoidance,the proposed algorithm possesses larger network capacity and is more effective when there is serious interference.

Key words: cooperative communication, relay selection, power control, interference avoidance

中图分类号: