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A random walk evolution model of wireless sensor networks and virus spreading |
Wang Ya-Qi (王亚奇), Yang Xiao-Yuan (杨晓元) |
Network and Information Security Key Laboratory of Armed Police Force, Electronics Technology Department,Engineering University of Armed Police Force, Xi'an 710086, China |
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Abstract In this paper, considering both cluster heads and sensor nodes, we propose a novel evolving network model based on the random walk to study the fault tolerance decrease of wireless sensor networks (WSNs) due to the node failure, and discuss the spreading dynamical behaviors of viruses in the evolution model. A theoretical analysis shows that the WSN generated by such an evolution model not only has a strong fault tolerance, but also can dynamically balance the energy loss of the entire network. It is also found that although the increase of the density of cluster heads in the network reduces the network efficiency, it can effectively inhibit the spread of viruses. In addition, the heterogeneity of the network improves the network efficiency and enhances the virus prevalence. We confirm all the theoretical results by sufficient numerical simulations.
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Received: 16 April 2012
Revised: 19 June 2012
Accepted manuscript online:
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PACS:
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05.90.+m
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(Other topics in statistical physics, thermodynamics, and nonlinear dynamical systems)
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05.65.+b
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(Self-organized systems)
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05.70.Np
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(Interface and surface thermodynamics)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61103231 and 61103230) and the Innovation Program of Graduate Scientific Research in Institution of Higher Education of Jiangsu Province, China (Grant No. CXZZ11_0401). |
Corresponding Authors:
Wang Ya-Qi
E-mail: wjwangyq@126.com
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Cite this article:
Wang Ya-Qi (王亚奇), Yang Xiao-Yuan (杨晓元) A random walk evolution model of wireless sensor networks and virus spreading 2013 Chin. Phys. B 22 010509
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