北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2008, Vol. 31 ›› Issue (5): 82-87.doi: 10.13190/jbupt.200805.82.pengmg

• 研究报告 • 上一篇    下一篇

异构无线通信系统的协同中继节点选择

彭木根, 王文博   

  1. 北京邮电大学 泛网无线通信教育部重点实验室, 北京 100876
  • 收稿日期:2007-12-01 修回日期:1900-01-01 出版日期:2008-10-30 发布日期:2008-10-30
  • 通讯作者: 彭木根

Cooperative Relay Node Selection in Heterogeneous Wireless Communication Systems

PENG Mu-gen, WANG Wen-bo
  

  1. Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2007-12-01 Revised:1900-01-01 Online:2008-10-30 Published:2008-10-30
  • Contact: PENG Mu-gen

摘要:

提出了一种基于协同机理的异构无线网络融合机制,并就协同中继节点选择给出了一种基于效用函数的理论优化模型. 该模型在保证第1跳和第2跳链路传输速率匹配的前提下,能从全局优化的角度选择最佳的中继节点. 为了降低计算复杂度,给出了一种次优的异构协同中继节点选择算法. 仿真结果表明, 所提出的协同中继节点选择算法能显著提高异构网络的性能.

关键词: 异构无线网络融合, 协同通信, 中继节点选择

Abstract:

A cooperative theory based convergence mechanism for heterogeneous wireless networks is presented, and a theoretical optimization model for the cooperative relay node selection is proposed, in which the utility function is involved. The proposed model can determine the optimal relay nodes from the global viewpoint under the conditions of equivalent transmission rates between the first and second hops. In order to simply the computation complex, a sub-optimal relay selection algorithm is presented. Simulation shows that the proposed cooperative relay node selection algorithm can improve the overall performances dramatically.

Key words: heterogeneous wireless communication system, cooperative communication, relay node selection

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