Journal
SOFTWARE-PRACTICE & EXPERIENCE
Volume 51, Issue 12, Pages 2558-2571Publisher
WILEY
DOI: 10.1002/spe.2797
Keywords
cluster head; hybrid algorithms; Internet of things; metaheuristic algorithms; simulated annealing; whale optimization; wireless sensor networks
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The study focuses on reducing energy consumption of sensors in IoT networks to extend network lifetime by optimizing the selection of Cluster Heads (CH) in the network, using a hybrid metaheuristic algorithm and comparing results with other optimization algorithms.
Recently Internet of Things (IoT) is being used in several fields like smart city, agriculture, weather forecasting, smart grids, waste management, etc. Even though IoT has huge potential in several applications, there are some areas for improvement. In the current work, we have concentrated on minimizing the energy consumption of sensors in the IoT network that will lead to an increase in the network lifetime. In this work, to optimize the energy consumption, most appropriate Cluster Head (CH) is chosen in the IoT network. The proposed work makes use of a hybrid metaheuristic algorithm, namely, Whale Optimization Algorithm (WOA) with Simulated Annealing (SA). To select the optimal CH in the clusters of IoT network, several performance metrics such as the number of alive nodes, load, temperature, residual energy, cost function have been used. The proposed approach is then compared with several state-of-the-art optimization algorithms like Artificial Bee Colony algorithm, Genetic Algorithm, Adaptive Gravitational Search algorithm, WOA. The results prove the superiority of the proposed hybrid approach over existing approaches.
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