Density Based Protocol For Head Selection In Wireless Sensor Networks
Priti Narwal1, S. S.Tyagi2

1Priti Narwal is a M.Tech student in computer science and engineering in Manav Rachna International University, Faidabad, India.
2Dr. S. S. Tyagi is a professor in department of computer science and engineering in Manav Rachna International University, Faridabad, India.
Manuscript received on June 15, 2011. | Revised Manuscript received on June 25, 2011. | Manuscript published on July 05, 2011. | PP: 42-46 | Volume-1 Issue-3, July 2011. | Retrieval Number: C052051311
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Abstract: In wireless sensor networks nodes have several limitations such as limited battery life, low computational capability, short radio transmission range and small memory space. However, the most severe constraint of the nodes is their limited energy resource because they cease to function when their battery has been depleted. To reduce energy usage in wireless sensor networks, many cluster-based algorithms have been proposed. Among those proposed, LEACH (Low Energy Adaptive Clustering Hierarchy) is a well-known cluster-based sensor network architecture . In this paper, subtractive clustering technique, which is an enhancement in the basic LEACH protocol to deal with its severe shortcomings with respect to handling of node‘s non-uniform and time variant energy distribution.
Keywords: Clustering, Density based clustering, LEACH protocol, Subtractive clustering, Wireless Sensor Networks.