Abstract
Wireless Sensor Networks (WSN) is a self organized network consisting of a large number of sensor nodes that are limited in energy source, computation capability and storage capacity. Major issue in Wireless Sensor networks is energy efficiency. The essential objectives of the wireless sensor network routing protocol design are distributing network energy consumption and enhance lifetime of the wireless sensor network. Clustering provides an efficient way for extending the wireless sensor network. Appropriate cluster-head node selection can drastically reduce the energy consumption and prolong the entire network. In this paper, an improved clustering algorithm is proposed based on fuzzy logic which takes energy level, distance from cluster head and crowdedness into consideration. Thus, this protocol shows an enhanced improvement in lifetime of nodes over other existing protocols.
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