International Journal of Innovative Research in Science, Engineering and Technology (IJIRSET)
The sensor nodes are connected wirelessly to form a network called as the Wireless Sensor Network (WSN). The nodes have confined battery power and the battery of the nodes cannot be replaced. These sensor nodes are used for collecting the sensor data and transmit them to the sink or base station. This data transmission from a node to the other node utilizes more energy if the data is broadcasted the from sensor nodes directly to the sink. The clustering method is used to reduce the energy utilization of the sensor nodes and the nodes are grouped into the clusters and the cluster-head in each cluster will gathers the data and transmits it to the sink.