A Survey on LEACH and its Descendant Protocols in Wireless Sensor Network

Wireless sensor network is defined as wireless network of sensor nodes in which Routing technique is one of the most challenging issues. One of the major issues in WSNs is the limited battery power of the network sensor nodes. The battery power plays an important role in increasing the lifetime of the nodes. In WSN, routing among various routing technique, energy consumption is one of the most important consideration. To minimize energy consumption hierarchical routing protocols are the best known protocols. LEACH protocol is one of the most energy efficient clustering protocols. Leach increases the network lifespan by consuming a small percentage of the total dissipated energy in the network. We have surveyed the different hierarchical routing protocols, developed from the LEACH. The paper presents survey of LEACH protocol and its various descendant protocols like E-LEACH, TL-LEACH, MLEACH, V-LEACH, LEACH-A, LEACH-B, LEACH-S. This paper also compares the above all routing protocols with original LEACH.