The life span of the sensor network is limited to its residual power. In order to increase the normal life span of the network it is necessary to implement energy aware algorithm. While there are many ways to achieve energy efficiency during routing, organizing the entire network into clusters and henceforth performing routing is one such approach. Current work is focused on two issues : Organizing the network into clusters, changing the Cluster Head at the appropriate time and perform routing through the cluster heads to the sink consuming least energy.

Broadcast, Routing, Multi-hop, Scalability