A Review Paper on Leach Based Protocol in WSN

Wireless sensor network have become an active area for researchers now a days. A sensor node carry small amount of resources in terms of processor, battery power, memory and communication range, but when a great number of sensor nodes work together they are able to complete a good volume of task. It is just because of Wireless Sensor Network we are able to interact with physical world directly. Compared with the traditional wireless networks, wireless sensor networks have energy constraints, low-data-rate of high redundant and data flow of high-to-one, and so on. Energy effectiveness is the key performance indicators of wireless sensor networks. Based on the analysis of energy management strategy in the wireless sensor networks, the main factors affecting energy consumption are: perceptual data, data processing and radio communications, the radio communication is the main part of energy consumption. In this paper, we present a recent survey of hierarchical routing protocols which are based on LEACH protocol