Clustering Algorithms for Wireless Sensor Network: A Survey

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S. Nithyakalyani
Dr.S.Suresh Kumar


The last few years have seen an increased interest in the potential use of wireless sensor networks(WSNs) in various fields like disaster
management, battle field surveillance, and border security surveillance as described by Quaritsch (2010), Hart (2006), Bokareva (2006) and Dudek
(2009). In such applications, a large number of sensor nodes are deployed, which are often unattended and work autonomously. Clustering is a key
technique used to extend the lifetime of a sensor network by reducing energy consumption (Younis 2003). It can also increase network scalability.
Researchers in all fields of wireless sensor network believe that nodes are homogeneous, but some nodes may be of different energy to prolong the
lifetime of a WSN and its reliability. In this paper, we study the impactof heterogeneity and survey different clustering algorithms for heterogeneous
WSNs highlighting their objectives, features, complexity, etc.



Keywords: Clustering, Energy efficiency, Heterogeneity, Stability, WSN


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