A Survey on Leach Based Protocols in Wireless Sensor Network

Wireless sensor networks (WSNs) consist of various homogeneous or heterogeneous sensor nodes deployed over an area. The most challenging issue in wireless sensor network research is its routing protocols as the sensors have limited power so protocols should be like it consumes less energy during active mode. To increase lifetime of a sensor network is to design protocols in such a way that it makes less use of battery, hence increment the lifetime of network. LEACH is the most commonly used energy efficient cluster based protocol. In this survey paper we represent LEACH based routing protocols with phases, operation and detailed algorithm used by LEACH. In this paper we also represent how to manage issues and on WSN. This paper also surveys advancements done in LEACH to improve its performance. Keywords— LEACH, Cluster Head (CH), Base Station (BS), Wireless Sensor Network (WSN).