Abstract
Nodes in Wireless Sensor Networks (WSNs) are not rechargeable. Hence, it is important to take care of low energy nodes so that they do not drain out at an early stage. In this regard, routing protocol is a prime factor for the prolonged lifetime of low energy sensor nodes. We propose a new protocol LEER (Low Energy nodes Efficient Routing) which primarily focuses on optimizing the energy consumption of low energy nodes. It has two variants namely LEER-Singlehop and LEER-Multihop. In this paper, we compared LEER with Low Energy Adaptive Clustering Hierarchy (LEACH), Threshold Sensitive Energy Efficient sensor Network (TEEN) and Pairwise Energy Efficient Routing (PEER). The performance metrics considered are network lifetime, energy efficiency, the number of dead nodes per round and the time till first node is dead. The experiments we carried out proved our protocol to be much better compared to TEEN, LEACH and PEER.
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