EE-FTR: An Energy-Efficient Fault-Tolerant Routing Protocol for Wireless Sensor Networks

In addition to the nature of the sensor nodes and hostile environments in which are deployed and due to its tasks of cluster management and data routing to base station (BS), the clusterhead node (CH) is prone to failure. In order to achieve fault-tolerance and not lose network connectivity, it would be more appropriate to find a faulty CH alternative. In this paper, we propose a fault-tolerant routing protocol based on the clustering method used in EADC (energy-aware clustering algorithm) protocol and on a proactive routing protocol. Simulation results show that our proposal provides better performance in terms of average delivery time, data delivery rate, dissipated energy and network lifetime compared to the EFT-PMD protocol.