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A Cluster-Based Energy Optimization Algorithm in Wireless Sensor Networks with Mobile Sink

delete2021-04-04
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OA
AI
Q
Qian Wei
K
Ke Bai *
L
Lin Zhou
Z
Zhentao Hu
金勇 cover
金勇 (Yong Jin)
J
Junwei Li
DOI:10.3390/s21072523delete
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Abstract

Abstract

En 中文
Aiming at high network energy consumption and data delay induced by mobile sink in wireless sensor networks (WSNs), this paper proposes a cluster-based energy optimization algorithm called Cluster-Based Energy Optimization with Mobile Sink (CEOMS). CEOMS algorithm constructs the energy density function of network nodes firstly and then assigns sensor nodes with higher remaining energy as cluster heads according to energy density function. Meanwhile, the directivity motion performance function of mobile sink is constructed to enhance the probability of remote sensor nodes being assigned as cluster heads. Secondly, based on Low Energy Adaptive Clustering Hierarchy Protocol (LEACH) architecture, the energy density function and the motion performance function are introduced into the cluster head selection process to avoid random assignment of cluster head. Finally, an adaptive adjustment function is designed to improve the adaptability of cluster head selection by percentage of network nodes death and the density of all surviving nodes of the entire network. The simulation results show that the proposed CEOMS algorithm improves the cluster head selection self-adaptability, extends the network life, reduces the data delay, and balances the network load.
Keywords:
mobile sink
energy optimization
cluster head selection
adaptive adjustment function
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Journal

Sensors cover
Sensors
IF:
3.5
Papers:
7.1W
Citations:
20.9W

Organization

H
henan university
Scholars:
2.3W
Papers: 1.3W
Citations: 20