A Cross-Layer Fault Tolerant Protocol with Recovery Mechanism for Clustered Sensor Networks

Yasmine Djebaili and Azeddine Bilami
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Yasmine Djebaili: Department of Computer Science, LaSTIC Laboratory, University of Batna 2, Batna, Algeria
Azeddine Bilami: Department of Computer Science, LaSTIC Laboratory-University of Batna 2, Batna, Algeria

International Journal of Distributed Systems and Technologies (IJDST), 2018, vol. 9, issue 1, 55-76

Abstract: This article describes how fault tolerance is an essential issue for many WSN (Wireless Sensor Network) applications such as wildlife monitoring, battlefield surveillance and health monitoring. It represents a great challenge for researchers regarding to the characteristics of sensor nodes which are prone to failures due essentially to their limited resources. Faults may occur, not only when sensor nodes exhaust their energy, but also when the congestion phenomenon emerges, because of a high traffic in the network and limited storage capacity of the sensor nodes. In order to support fault tolerance in WSNs, the authors propose a new scheme which incorporates a link quality estimation algorithm and a congestion detection mechanism to enable nodes that present high quality links to be chosen for routing in a non-congested area in case of faults. Evaluations through simulations under NS2 show that our proposed protocol tolerates faults with a minimum cost relatively to HEEP protocol and improves network's performances comparatively to other fault tolerant protocols such as EF-LEACH.

Date: 2018
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