International Journal of Science and Engineering Applications (IJSEA)
In wireless sensor networks, sensor nodes play the most prominent role. These sensor nodes are mainly un-chargeable, so it raises an issue regarding lifetime of the network. Mainly sensor nodes collect data and transmit it to the base station. So, most of the energy is consumed in the communication process between sensor nodes and the base station. In this paper, the authors present an improvement on LEACH protocol to enhance the network lifetime. Their goal is to reduce the transmissions between cluster heads and the sink node. They will choose optimum number of master cluster heads from variation cluster heads present in the network.