Efficient Fault-Tolerant Event Query Algorithm in Distributed Wireless Sensor Networks

Rongbo Zhu
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Rongbo Zhu: College of Computer Science, South-Central University for Nationalities, Wuhan 430074, China

International Journal of Distributed Sensor Networks, 2010, vol. 6, issue 1, 593849

Abstract: To overcome the faulty data query problem to improve the accuracy of data query, an efficient fault-tolerant event query algorithm (FTEQ) is proposed, which takes the short-term and long-term spatial and temporal similarities between sensors and environment into considerations. An imprecise and missing data correction algorithm based on Kalman filter is proposed to correct fault sensing data, and a score rank algorithm also is proposed to assign each sensor an appropriate value to reflect the importance of sensors. FTEQ performs self-evaluation and cooperative evaluation schemes with its trustful r neighbor nodes to filter fault data query with the importance of sensor. Simulation results prove that FTEQ performs extremely well in terms of faulty detection rate and data query cost.

Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:sae:intdis:v:6:y:2010:i:1:p:593849

DOI: 10.1155/2010/593849

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