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电子学报 ›› 2012, Vol. 40 ›› Issue (2): 389-393.DOI: 10.3969/j.issn.0372-2112.2012.02.029

• 科研通信 • 上一篇    下一篇

认知无线电网络自适应能量驱动双门限簇头轮换算法研究

徐贵森, 谭学治   

  1. 1. 哈尔滨工业大学通信技术研究所,黑龙江哈尔滨 150080;2. 通信网信息传输与分发技术重点实验室,河北石家庄 050081
  • 收稿日期:2011-03-07 修回日期:2011-05-26 出版日期:2012-02-25
    • 基金资助:
    • 国家自然科学基金委员会与中国民用航空局联合资助项目 (No.61071104); 通信网信息传输与分发技术重点实验实验室开放课题 (No.ITD-u10006)

An Energy-Driven Double Thresholds Adaptive Cluster Head Rotation Algorithm for Cognitive Radio Network

XU Gui-sen, TAN Xue-zhi   

  1. 1. Communication Research Center,Harbin Institute of Technology,Harbin,Heilongjiang 150080,China;2. Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory,Shijiazhuang,Hebei 050081,China
  • Received:2011-03-07 Revised:2011-05-26 Online:2012-02-25 Published:2012-02-25

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摘要： 为了延长基于分簇结构的认知无线电网络的网络寿命,需要采用簇头轮换的方法来平衡认知无线电网络的能耗.通过分析网络中簇头节点与普通节点之间的能耗差异,建立能量消耗模型,并提出了一种基于簇头节点实时负载来估计其启动簇头轮换的双门限自适应簇头轮换算法(Double Thresholds Adaptive Cluster Rotation Algorithm,DTACRA).仿真结果表明,与现有算法LEACH和EDAC算法等比较,DTACRA算法可以有效提高节点能量利用效率,延长了网络生存时间.

关键词: 认知无线电网络, 分簇, 双门限轮换, 能量驱动

Abstract: In order to extent the lifetime of cognitive radio network based on clustered architecture,the role of cluster head need be changed for balance the energy consumption in cognitive radio network.A energy consumption model is proposed to describe the different between the cluster head nodes and common nodes,and then DTACRA (Double Thresholds Adaptive Cluster Rotation Algorithm) is presented,which double rotation energy thresholds are estimated using cluster head real-time energy load.The simulation results show that comparing with LEACH and EDAC,DTACRA maximizes the utilization of the nodes energy and prolongs the network lifetime.

Key words: cognitive radio network, clustering, double thresholds rotation, energy-driven

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