Trajectory design and resource allocation for UAV energy minimization in a rotary-wing UAV-enabled WPCN

Due to the low efficiency of energy harvest (EH) for the traditional wireless powered communication network (WPCN), we propose a communication scheme based on unmanned aerial vehicle (UAV)-enabled WPCN, which can greatly improve the EH efficiency problem. In this paper, the UAV trajectory, time allo...

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Bibliographic Details
Published in:	Alexandria engineering journal Vol. 60; no. 1; pp. 1787 - 1796
Main Authors:	Wang, Zhen, Wen, Miaowen, Dang, Shuping, Yu, Lisu, Wang, Yuhao
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 01.02.2021 Elsevier
Subjects:	Energy harvest (EH) Iterative algorithm Non-convex problem UAV trajectory Unmanned aerial vehicle (UAV) Wireless powered communication network (WPCN) Iterative algorithm Energy harvest (EH) Unmanned aerial vehicle (UAV) UAV trajectory Non-convex problem Wireless powered communication network (WPCN)
ISSN:	1110-0168
Online Access:	Get full text
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Summary:	Due to the low efficiency of energy harvest (EH) for the traditional wireless powered communication network (WPCN), we propose a communication scheme based on unmanned aerial vehicle (UAV)-enabled WPCN, which can greatly improve the EH efficiency problem. In this paper, the UAV trajectory, time allocation, transmit power of UAVs, scheduling of wireless information transfer (WIT) and wireless power transfer (WPT) are jointly optimized to minimize the whole energy consumption. To solve the formulated non-convex problem with multiple constraints and attain locally optimal solution, an iterative algorithm is proposed. Simulations show that our proposed algorithm is superior to other benchmark algorithms.
ISSN:	1110-0168
DOI:	10.1016/j.aej.2020.11.027