Novel Approaches to Enhance Wireless Sensor Network Life time by Even Distribution of Cluster Heads and Avoiding Redundant Data

In cluster based Wireless Sensor Networks, lifetime of the network may be increased by conserving the energy spent by the cluster members and cluster heads. Energy consumption by cluster based WSN depends on the factors like number of data bits transmitted, received, aggregated by the nodes. In two hop cluster based networks member nodes acquires data and pushes to cluster heads (CH). Cluster Heads in WSN consumes more energy as they are affected by all the three factors. This paper proposes three different methods that cleverly selects the cluster heads, avoids unnecessary data transmission and balances the aggregation energy. The first method maintains threshold distance between the cluster heads for even distribution of cluster heads to avoid unnecessary CH. In the second approach, redundant data collected by the cluster member are curbed to save aggregation energy at CH. In the last method member nodes are distributed uniformly to balance the energy consumption.