Detection of Node Failure in Wireless Image Sensor Networks

Abstract EN

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.