电信科学 ›› 2011, Vol. 27 ›› Issue (3): 42-46.doi: 10.3969/j.issn.1000-0801.2011.03.013

• 研究与开发 • 上一篇    下一篇

认知无线Ad Hoc网络中的路由尺度和算法设计

赵超1,2,徐少毅1,2,谈振辉1   

  1. 1 北京交通大学宽带无线移动通信研究所 北京100044
    2 综合业务网理论及关键技术国家重点实验室 西安710126
  • 出版日期:2011-03-15 发布日期:2011-03-15
  • 基金资助:
    国家科技重大专项“IMT-Advanced新型无线资源管理研究及验证”;国家科技重大专项“面向IMTAdvanced跨层优化技术”

Chao Zhao1,2,Shaoyi Xu1,2,Zhenhui Tan1   

  1. 1 Institute of Broadband Wireless Mobile Communication，Beijing Jiaotong University，Beijing 100044，China
    2 The State Key Laboratory of Integrated Services Networks，Xiˊan 710126，China
  • Online:2011-03-15 Published:2011-03-15

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摘要：

在认知无线Ad Hoc网络中，路由问题面临巨大挑战。由于各认知节点可用频谱的时变性、多样性和差异性，传统的路由尺度不再适用于认知无线Ad Hoc网络。本文在自组织认知网络环境下，应用主用户信道的使用模型，同时考虑次用户之间的干扰情况，提出了两类路由尺度和算法，仿真结果表明，这两类路由尺度都能很好地反映端到端性能。

关键词: 认知无线电, AdHoc, 路由尺度, 信干噪比, 时延, 平均吞吐量, 泊松过程

Abstract:

Routing in cognitive radio Ad Hoc networks faces great challenges. Because of the available spectrum of cognitive nodes is variability，diversity and difference，the traditional routing metrics no longer apply to the cognitive radio Ad Hoc networks. Considering the environment of cognitive self-organizing networks in this paper，we took the channel model of primary users and the interference between the secondary users into account and then we proposed two types of routing metrics. Simulation results indicate that our two types of routing metrics can accurately capture the performances they attempt to reflect. And all the proposed metrics outperform the traditional minimum hop metric（MH）in the considering performances.

Key words: cognitive radio, Ad Hoc, routing metric, SINR, delay, average throughput, Poisson process

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