Protract Lifetime by Exploiting Heterogeneity in Wireless Sensor Network

sensor networks (WSN) are emerging in various fields like disaster management, battle field surveillance, agriculture etc. A large number of sensors in these applications are unattended and work autonomously. For a case we can also use set of single sensor in order to cover the whole area of our region but it is much costly and risky as well and it gives sometimes single point of failure. So providing heterogeneous sensors clearly shorts down many problems in wireless sensor network mainly as lifetime of network. Clustering is a key technique to improve the network lifetime, reduce the energy consumption and increase the scalability of the sensor network. In this paper, a novel technique is evolved to measure the impact of heterogeneity of the nodes over lifetime of the network and compare the performance by comparing with homogeneous sensor network. KeywordsHead, Heterogeneous, Energy Efficiency.

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