Table of Contents
ISRN Sensor Networks
Volume 2012, Article ID 342461, 13 pages
http://dx.doi.org/10.5402/2012/342461
Research Article

An Adaptive Approach to Discriminate the Persistence of Faults in Wireless Sensor Networks

Department of Computer Science and Engineering, National Institute of Technology, Rourkela 769008, India

Received 20 June 2012; Accepted 18 July 2012

Academic Editors: M. Brandl, L. Reggiani, and Y. Yu

Copyright © 2012 Arunanshu Mahapatro and Pabitra Mohan Khilar. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper presents a parametric fault detection algorithm which can discriminate the persistence (permanent, intermittent, and transient) of faults in wireless sensor networks. The main characteristics of these faults are the amount the fault appears. We adopt this state-holding time to discriminate transient from intermittent faults. Neighbor-coordination-based approach is adopted, where faulty sensor nodes are detected based on comparisons between neighboring nodes and dissemination of the decision made at each node. Simulation results demonstrate the robustness of the work at varying transient fault rate.