Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (35): 90-94.DOI: 10.3778/j.issn.1002-8331.2010.35.026

• 网络、通信、安全 • Previous Articles     Next Articles

Hybrid interference model-based centralized scheduling algorithm in multi-channel Mesh networks

SUN Mao-heng1,ZHENG Yu1,ZHOU Xuan2   

  1. 1.Department of Information and Communication Engineering,Tongji University,Shanghai 201804,China
    2.School of Information Science and Engineering,East China University of Science and Technology,Shanghai 200237,China
  • Received:2010-06-03 Revised:2010-09-02 Online:2010-12-11 Published:2010-12-11
  • Contact: SUN Mao-heng

基于混合干扰模型的多信道Mesh网络调度算法

孙懋珩1,郑 煜1,周 轩2   

  1. 1.同济大学 信息与通信系统系,上海 201804
    2.华东理工大学 信息科学与工程学院,上海 200237
  • 通讯作者: 孙懋珩

Abstract: The problem of joint scheduling and channel assignment in multi-channel Wireless Mesh Networks(WMN) is presented,and a hybrid interference model is designed by integrating physical interference model into protocol interference model.Then a hybrid interference model-based multi-channel centralized scheduling algorithm is proposed,which considers the physical characteristic of wireless communication,that the data packets can be correctly received even if interferences exist.The performance comparisons indicate that the algorithm in this paper can improve the parallel transmission of links,and efficiently decrease the total transmission time.

Key words: Wireless Mesh Network(WMN), scheduling, protocol interference model, physical interference model, hybrid interference model, channel assignment

摘要: 研究了多信道无线Mesh网络中的调度及信道分配问题,设计了一种综合协议干扰模型与物理干扰模型的混合干扰模型,并在此干扰模型下提出了一种集中式调度算法。该算法在目前普遍使用的协议干扰模型的基础上,考虑了无线链路的物理传输特性:即使存在一定的干扰,也可以成功接收发射端发送的数据。模拟实验表明该算法可以提高Mesh网络中链路的并行性,有效减少总传输时间。

关键词: 无线Mesh网络(WMN), 调度, 协议干扰模型, 物理干扰模型, 混合干扰模型, 信道分配

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