Table of Contents
ISRN Sensor Networks
Volume 2012, Article ID 342514, 8 pages
Research Article

Detection of Node Failure in Wireless Image Sensor Networks

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

Received 6 December 2011; Accepted 21 December 2011

Academic Editors: J.-F. Myoupo and W. Xiao

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.


A sequenced process of fault detection followed by dissemination of decision made at each node characterizes the sustained operations of a fault-tolerant wireless image sensor network (WISN). This paper presents a distributed self-fault diagnosis model for WISN where fault diagnosis is achieved by disseminating decision made at each node. Architecture of fault-tolerant wireless image sensor nodes is presented. Simulation results show that sensor nodes with hard and soft faults are identified with high accuracy for a wide range of fault rate. Both time and message complexity of the proposed algorithm are 𝑂 ( 𝑛 ) for an 𝑛 -node WISN.