Comparative Study of PEGASIS Protocols in Wireless Sensor Network

Abstract

The area of Wireless Sensor Networks (WSNs) is one of the fast growing and emerging field in the scientific and engineering world. It is an ad-hoc network that consists of small nodes with sensing, computing and communicating wireless abilities. These sensor nodes are densely deployed in the sensor field environments. The environment can be an Information Technological framework, a physical world, or a biological system.The main objective of WSN is to sense the crucial information from the environment depending on the type of application for which it is deployed and send this information to its Base Station (BS) so that it can take corrective actions. These Sensor Nodes communicate with each other via various Routing Protocols. Protocols in WSNs are broadly classified as Flat, Hierarchical and Location Based routing protocols. This paper presentshierarchical routing protocol, Power Efficient Gathering in Sensor Information Systems (PEGASIS) and a comparative study on various versions of PEGASIS protocols.