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Sensors and Materials, Volume 32, Number 4(1) (2020)
Copyright(C) MYU K.K.
pp. 1141-1157
S&M2167 Research Paper of Special Issue
Published in advance: January 6, 2020
Published: April 10, 2020

Sensor Network with Unmanned Aerial Vehicle-enabled Wireless Power Transfer: Optimal Clustering and Trajectory Designing [PDF]

Guiyun Liu, Wenjun Jiang, Weiqiang Tan, and Xuejing Lan

(Received July 12, 2019; Accepted December 16, 2019)

Keywords: WSNs, WPT, cluster, UAV, path planning, energy consumption

In this work, we investigate the application of an unmanned aerial vehicle (UAV)-enabled wireless power transfer (WPT) system in large-scale wireless sensor networks (WSNs). The specific research described in this paper can be divided into three parts. Firstly, it is well known that the energy consumption of WSNs and the limited-capacity battery of nodes lead to the limited lifetime of WSNs. To improve the lifetime of the WSNs, the UAV’s optimal position and the optimal clustering scheme are determined using an improved differential evolution (DE) algorithm in multicluster scenarios. The corresponding energy consumption is determined by comparing different clustering schemes. Meanwhile, the shortest time for the UAV to charge nodes is determined by utilizing the proposed DE algorithm to search for the optimal charging location. Since the UAV usually acts as both a base station and an energy transmitter, the algorithm requires joint optimization of the clustering scheme and the UAV’s charging location. Secondly, as the scale of WSNs increases, some areas will be in the “dead” state within the WSNs, which will greatly affect the performance. On the basis of the above studies, an improved local permutation algorithm is applied to plan an optimal path subject to the dormancy rate constraint in all regions. With the algorithm, the UAV needs to “rescue” the target region and charge regions along the path as much as possible. Finally, numerical results show that the optimized UAV trajectory can significantly improve the energy transmission efficiency, and the proposed optimal path planning improves the lifetime of WSNs.

Corresponding author: Wenjun Jiang

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Cite this article
Guiyun Liu, Wenjun Jiang, Weiqiang Tan, and Xuejing Lan, Sensor Network with Unmanned Aerial Vehicle-enabled Wireless Power Transfer: Optimal Clustering and Trajectory Designing, Sens. Mater., Vol. 32, No. 4, 2020, p. 1141-1157.

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