WSN node lifetime enhancement based on hybrid protocol

Sensor nodes deployed in wireless sensor network have restrained battery power so the network lifetime is a paramount factor. Hence, energy efficient routing protocol should be adopted to increase the network life expectancy. PEGASIS is one of the best fundamental chain based hierarchical routing protocols which can be hired to lessen the energy diminution in the network. This paper describes a Multi-chain based Hybrid Routing Protocol (MHRP)which adopts a joint strategy of multi-chain concept and pre-chain leader (PCL) selection procedure to realize the increased node lifetime in wireless sensor networks (WSN). The multi-chain concept aims to balance the network overhead due to less number of nodes comparatively in chains. It also minimizes data delivery delay in order to improve the network performance. The pre-chain leader modifies the greedy algorithm and aims to balance the workload of head node selected among the entire node by adopting another leader node in case when head node is far away from sink node. Simulation analysis shows that we achieve better overall performance of the network by using these two concepts in our hybrid protocol and can be used to attain delay-intolerant applications.