Date Added: Nov 2012
Saving energy and increasing network lifespan are important problems in Wireless Sensor Networks (WSNs). WSNs with many small nodes can be used for monitoring and controlling the physical environments. This network due to the shared wireless environment and deployed unpleasant surroundings is fault prone. This paper introduces the New Energy-efficient Fault-tolerant Protocol for Wireless Sensor Network. Proposed EFP protocol, aims to decrease the consumption of the network resources in each round of data communication and aggregation and it is a fault tolerant technique that guarantees trustworthy of the communications between sensor nodes and base station by selecting a best sensor node as a cluster head in terms of energy and distance and electing a reserved cluster-head.