In WSN sensor nodes are deployed to gather data and communicate with each other for specific application .For this each sensor needs, some energy which is limited and provided by batteries. Thus efficient use of energy and network life time is vital issues in WSN. Many researches were done based on routing protocols, coverage problems and overall performance to improve lifetime. This article studies different routing protocols and issues in WSN. This paper mainly reviews on energy efficient chain based hierarchical routing protocols. PEGASIS is one of the chain based hierarchical routing protocol with reduced energy consumption and improved lifetime. In this article PEGASIS and improvement on it were studied and compared.
WSN, Hierarchical routing protocol, PEGASIS, Energy Efficiency.
Prachi Arora; Itu Snigdh; Sandeep Mahato; Raj Arora, Review on Energy Efficient Chain based Hierarchical Routing Protocols in WSN, HCTL Open International Journal of Technology Innovations and Research (IJTIR), Volume 16, July 2015, e-ISSN: 2321-1814, ISBN: 978-1-943730-43-8.