LOAD BALANCING AND ENERGY EFFICIENCY IN WSN BY CLUSTER JOINING METHOD

In any WSN life of network is depending on life of sensor node. Thus, proper load balancing is very useful for improving life of network. The tree-based routing protocols like GSTEB used dynamic tree structures for routing without any formation of collections. In cases of larger networks, the scheme is not always feasible. In this proposed work cluster-based routing method is used. Cluster head is selected such that it should be close to the base station and should have maximum residential energy than other nodes selected for cluster formation. Size of cluster is controlled by using locationbased cluster joining method such that nodes selects their nearest collection head based on the signal strength from cluster head and distance between node and cluster head. Nodes connect to head having the highest signal strength and closest to the base station, this minimizes size of cluster and reduces extra energy consumption. In addition to this cluster formation process starts only after availability of data due to an event. So proposed protocol performs better than existing tree based protocols like GSTEB in terms of energy efficiency.