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Symmetry 2019, 11(1), 37; https://doi.org/10.3390/sym11010037

Energy Optimization in Cluster-Based Routing Protocols for Large-Area Wireless Sensor Networks

School of Electrical and Computer Engineering, The University of Seoul, Seoul 02504, Korea
Received: 9 December 2018 / Revised: 24 December 2018 / Accepted: 25 December 2018 / Published: 2 January 2019
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Abstract

In large-area wireless sensor networks with hierarchical cluster-based routing protocols, the average number of clusters, k, and the transmission range for the control messages, R, significantly affect the network lifespan. We analyze energy consumption in depth as a function of ( k , R ) , taking into account the energy dissipation of cluster head nodes and the member nodes, separately. To achieve joint optimization of ( k o p t , R o p t ) , we adopt derivative-free Nelder–Mead Simplex method. Computer simulations have shown that our approach effectively reduces energy consumption of sensor nodes in the process of clustering and data transmission in large-area sensor fields. Our optimization can be applied to existing cluster-based routing schemes to maximize their energy efficiency. View Full-Text
Keywords: internet of things; wireless sensor network; hierarchical routing; optimization; transmission radius; clustering internet of things; wireless sensor network; hierarchical routing; optimization; transmission radius; clustering
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Kang, S.H. Energy Optimization in Cluster-Based Routing Protocols for Large-Area Wireless Sensor Networks. Symmetry 2019, 11, 37.

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