A modified energy efficient protocol for optimization of dead nodes and energy consumption in wireless sensor networks

The role of sensors (nodes) in Wireless Sensor Network (WSN) is to sense, collect the data and process that data, and forward the processed data to the other sensor node or base station. All these processes consumes energy. The level of energy consumption is higher in transmitting stage as compared to sensing, collecting and processing the data. The requirement of transmission power is directly depends on the distance between the sender and receiver nodes. In this paper, a comparative network life time analysis is done in between the Low Energy Adaptive Clustering Hierarchy (LEACH) and its variant protocol LEACH-Two Level Cluster Head (LEACH-TLCH) protocol on the basis of energy consumption, residual energy and dead nodes. In this paper Tertiary Head-Low Energy Adaptive Clustering Hierarchy (TH-LEACH), a new energy efficient routing protocol is also proposed. This proposed protocol improves the behavior in terms of number of dead nodes and total energy consumption in the network hence, optimizing network lifetime.