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Advanced SepE Protocol for Extending the Lifetime of the Heterogeneous Wireless Sensor Networks

Due to the increasing demand of WSNs, they are progressively more prepared to do the more complex functions, but it still requires battery operated sensors to use the constrained energy in order to enhance the lifetime of the network. There are many hierarchical protocols that use the clusters to coordinate the consumption of energy in WSNs. In this paper, mainly the heterogeneous clustered energy efficient protocols are discussed. A modified clustering algorithm is proposed with four-tier sensor nodes setting, to deal with the energy heterogeneity among sensor nodes.