Review paper on Leach protocal in Wireless Sensor Network.

wireless sensor network enables the regular monitoring of military, civil and other application. This paper proposes a new improved cluster algorithm of LEACH protocol which is intended to balance the energy consumption of the entire network and extend the lifetime of the network . In this paper we propose a leach protocol that works on network layer in OSI model. Leach protocol stands for Low-Energy Adaptive Clustering Hierarchy, a clustering-based protocol that utilizes randomized rotation of local cluster base stations (cluster-heads) to evenly distribute the energy load among the sensors in the network . LEACH is able to distribute energy dissipation evenly throughout the sensors, doubling the useful system lifetime for the networks we simulated.. It proides a better results than conventional protocols. [ABSTRACT FROM AUTHOR]