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Fault tolerance in data gathering wireless sensor networks

Huang, Guangyan, Zhang, Yanchun, He, Jing and Cao, Jinli (2011) Fault tolerance in data gathering wireless sensor networks. The Computer Journal, 54 (6). pp. 976-987. ISSN 0010-4620 (print) 1460-2067 (online)

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Abstract

In data gathering wireless sensor networks, data loss often happens due to external faults such as random link faults and hazard node faults, since sensor nodes have constrained resources and are often deployed in inhospitable environments. However, already known fault tolerance mechanisms often bring new internal faults (e.g. out-of-power faults and collisions on wireless bandwidth) to the original network and dissipate lots of extra energy and time to reduce data loss. Therefore, we propose a novel Dual Cluster Heads Cooperation (CoDuch) scheme to tolerate external faults while introducing less internal faults and dissipating less extra energy and time. In CoDuch scheme, dual cluster heads cooperate with each other to reduce extra costs by sending only one copy of sensed data to the Base Station; also, dual cluster heads check errors with each other during the collecting data process. Two algorithms are developed based on the CoDuch scheme: CoDuch-l for tolerating link faults and CoDuch-b for tolerating both link faults and node faults; theory and experimental study validate their effectiveness and efficiency.

Item Type: Article
Uncontrolled Keywords: ResPubID23058, wireless sensor networks, fault intolerance, data gathering, quality of information
Subjects: FOR Classification > 0806 Information Systems
SEO Classification > 8901 Communication Networks and Services
Faculty/School/Research Centre/Department > Centre for Applied Informatics
Faculty/School/Research Centre/Department > School of Engineering and Science
Depositing User: VUIR
Date Deposited: 31 Jul 2012 02:12
Last Modified: 28 Sep 2014 23:40
URI: http://vuir.vu.edu.au/id/eprint/8927
DOI: https://doi.org/10.1093/comjnl/bxr027
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Citations in Scopus: 3 - View on Scopus

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