Enhanced Sleep/Awake Schedule with Multi-Hop Hierarchical Routing Algorithm for Wireless Sensor Networks

Abstract

Non-uniform deployment of sensor nodes, energy constraints, dead nodes, interference links are the major limitations of WSN performance. Energy consumption, life time improvement are the key parameters to increase the throughput of WSN. For limiting the energy consumption of sensor nodes, they are driven into sleep mode after they ends sensing. Efficient utilization of energy resources by clustered nodes is heavily affected by cluster head selection. This work focuses on reducing the energy consumption by proposing an efficient enhanced energy aware multi-hop hierarchical routing algorithm. In order to overcome energy holes drainage problem due to non-uniform node distribution in the network, an energy hole removing mechanism keeps a node into sleep mode if the node energy is less than the threshold. The comparison results shows proposed algorithm is more efficient than other existing algorithms.