Journal
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
Volume 409, Issue -, Pages 8-16Publisher
ELSEVIER
DOI: 10.1016/j.physa.2014.02.001
Keywords
Wireless sensor network; Scale-free topology; Cascading failures; Critical load
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Funding
- Hebei Province Natural Science Foundation of China [F2012203179]
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Considering the cascading failures of scale-free fault-tolerant topology in wireless sensor networks (WSNs), based on the power function of load and the fixed capacity, a new load redistribution model is proposed under a single random node failure. Adopting the probability generating function method, the relationship between the load and the largest connected component after cascading failures on scale-free fault-tolerant topology is studied. Then the critical load triggering large-scale cascading failure is obtained. This discovery reveals the cascading failure principium of scale-free fault-tolerant topology in WSNs. It may have practical implications for controlling cascading failure disasters of scale-free fault-tolerant topology in the single random node failure. (C) 2014 Published by Elsevier B.V.
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