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Immunizations on small worlds of tree-based wireless sensor networks |
Li Qiao(李峤)a)†, Zhang Bai-Hai(张百海) a), Cui Ling-Guo(崔灵果)a), Fan Zhun(范衠)b), and Athanasios V. Vasilakosc) |
a. School of Automation, Beijing Institute of Technology, Beijing 100081, China;
b. Department of Mechanical Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark;
c. Department of Computer and Telecommunications Engineering, University of Western Macedonia, Kozani, Greece |
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Abstract The sensor virus is a serious threat, as an attacker can simply send a single packet to compromise the entire sensor network. Epidemics become drastic with link additions among sensors when the small world phenomena occur. Two immunization strategies, uniform immunization and temporary immunization, are conducted on small worlds of tree-based wireless sensor networks to combat the sensor viruses. With the former strategy, the infection extends exponentially, although the immunization effectively reduces the contagion speed. With the latter strategy, recurrent contagion oscillations occur in the small world when the spatial--temporal dynamics of the epidemic are considered. The oscillations come from the small-world structure and the temporary immunization. Mathematical analyses on the small world of the Cayley tree are presented to reveal the epidemic dynamics with the two immunization strategies.
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Received: 27 October 2011
Revised: 27 April 2012
Accepted manuscript online:
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PACS:
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02.50.-r
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(Probability theory, stochastic processes, and statistics)
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05.50.+q
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(Lattice theory and statistics)
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05.65.+b
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(Self-organized systems)
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Cite this article:
Li Qiao(李峤), Zhang Bai-Hai(张百海), Cui Ling-Guo(崔灵果), Fan Zhun(范衠), and Athanasios V. Vasilakos Immunizations on small worlds of tree-based wireless sensor networks 2012 Chin. Phys. B 21 050205
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