Abstract
Wireless sensor networks (WSNs) are made of tiny sensor nodes (SNs) and a base station (BS). As these tiny sensor nodes run on non- rechargeable batteries due to their wide distribution the lifetime of the network is of great importance. LEACH routing protocol that is the earliest hierarchical routing protocol suffers from some drawbacks such as not considering the remaining energy of SNs and the clusters’ size to prolong the network life time to a higher level. In this paper we propose an efficient LEACH-based routing protocol in an effort to prolong the lifetime of WSNs. The proposed protocol consider residual energy of sensor nodes, their distance from base station and the size of each cluster to prolong the network life to a higher level. The result of our simulation indicates that our improved protocol works significantly better than existing LEACH its improved versions K-LEACH and T-LEACH in case of balancing the energy consumption of the network.
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