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Modeling and Evaluating the Reliability of Wireless Sensor Networks

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3 Author(s)
Shrestha, A. ; Dept. of Electr. & Comput. Eng., Univ. of Massachusetts Dartmouth, MA ; Liudong Xing ; Hong Liu

The reliability of wireless sensor networks (WSN) depends on both network connectivity and sensing coverage. Common-cause failures (CCF) can contribute significantly to the WSN unreliability. This paper considers the problem of modeling and evaluating the coverage-oriented reliability of WSN subject to CCF. Our approach is computationally efficient due to the use of a progressive reduction scheme, reduced ordered binary decision diagrams, as well as a decomposition and aggregation scheme for considering CCF. A hierarchical clustered WSN is used as an example to illustrate the basics and advantages of our approach

Published in:

Reliability and Maintainability Symposium, 2007. RAMS '07. Annual

Date of Conference:

22-25 Jan. 2007