| 基于随机行走的无线传感器网络簇间拓扑演化 |
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| 引用本文： | 陈力军,刘明,陈道蓄,谢立. 基于随机行走的无线传感器网络簇间拓扑演化[J]. 计算机学报, 2009, 32(1). DOI: 10.3724/SP.J.1016.2009.00069 |
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| 作者姓名： | 陈力军 刘明 陈道蓄 谢立 |
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| 作者单位： | 南京大学计算机软件新技术国家重点实验室,南京,210093;南京大学-香港理工大学无线与移动传感器网络计算联合实验室,南京,210093;电子科技大学计算机科学与工程学院,成都,610054 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划) |
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| 摘 要： | 无线传感器网络中的容错机制可防止节点出现因能量的耗尽而失效或链路因网络的入侵而失灵的现象.目前无线传感器网络中的一些容错机制被相继提出,这些方法的主要思想是采用冗余策略.文中借助于复杂网络理论,提出了一个基于随机行走的无线传感器网络簇间拓扑演化模型.拓扑生长的动态特性分析表明:由该模型演化成的网络拓扑具有无标度(scale-free)网络的性质.许多研究工作已经表明,容错能力不仅仅存在于有冗余的系统中,而且同样也存在于无标度网络中.
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| 关 键 词： | 复杂网络 无线传感器网络 随机行走 拓扑演化 |
Topology Evolution of Wireless Sensor Networks among Cluster Heads by Random Walkers |
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| CHEN Li-Jun,LIU Ming,CHEN Dao-Xu,XIE Li. Topology Evolution of Wireless Sensor Networks among Cluster Heads by Random Walkers[J]. Chinese Journal of Computers, 2009, 32(1). DOI: 10.3724/SP.J.1016.2009.00069 |
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| Authors: | CHEN Li-Jun LIU Ming CHEN Dao-Xu XIE Li |
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| Affiliation: | State Key Laboratory for Novel Software Technology;Nanjing University;Nanjing 210093;Cooperative Laboratory for Mobile and Wireless Sensor Networks of Nanjing University and Hong Kong Polytechnic University;Nanjing 210093;School of Computer Science and Engineering;University of Electronic Science and Technology;Chengdu 610054 |
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| Abstract: | Fault-tolerance mechanisms are needed to protect wireless sensor networks from various faults such as node failure due to loss of power and link failure due to network intrusion.A number of fault-tolerance techniques have been developed specifically for wireless sensor networks.One of the major fault-tolerance techniques is the exploitation of redundancy.In this paper,an evolving network model based on the random walkers among the cluster heads is proposed.The analysis of growth dynamic demonstrates that su... |
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| Keywords: | complex networks wireless sensor networks random walkers topology evolution |
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