Passive Beamforming and Trajectory Optimization for Reconfigurable Intelligent Surface-Assisted UAV Secure Communication

Unmanned aerial vehicle (UAV) and reconfigurable intelligent surface (RIS) methods are promising techniques for improving the energy and spectrum efficiency of Fifth Generation/Beyond Fifth Generation (5G/B5G) networks. In order to take advantage of both techniques, we propose an RIS-assisted UAV se...

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Autores principales:	Dawei Wang, Yang Zhao, Yixin He, Xiao Tang, Lixin Li, Ruonan Zhang, Daosen Zhai
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	reconfigurable intelligent surface security unmanned aerial vehicle Science Q
Acceso en línea:	https://doaj.org/article/e44c7b5242014ee9b76dfa8a91c02700
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id	oai:doaj.org-article:e44c7b5242014ee9b76dfa8a91c02700
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spelling	oai:doaj.org-article:e44c7b5242014ee9b76dfa8a91c027002021-11-11T18:52:59ZPassive Beamforming and Trajectory Optimization for Reconfigurable Intelligent Surface-Assisted UAV Secure Communication10.3390/rs132142862072-4292https://doaj.org/article/e44c7b5242014ee9b76dfa8a91c027002021-10-01T00:00:00Zhttps://www.mdpi.com/2072-4292/13/21/4286https://doaj.org/toc/2072-4292Unmanned aerial vehicle (UAV) and reconfigurable intelligent surface (RIS) methods are promising techniques for improving the energy and spectrum efficiency of Fifth Generation/Beyond Fifth Generation (5G/B5G) networks. In order to take advantage of both techniques, we propose an RIS-assisted UAV secure communication scheme, where an UAV is equipped with RIS to facilitate secure transmission. To maximize the average secrecy rate, we jointly optimize the beamforming power, reflect phase shift, and UAV’s trajectory. For this non-convex problem, we decompose it into the power beamforming problem, the phase shift optimization problem, and the UAV’s trajectory design problem, and proposed an efficient iterative algorithm to solve the problem. The numerical results verify the superiority of the proposed scheme that can improve the average secure transmission rate by about 20% compared to that of Eavesdropping elimination methods.Dawei WangYang ZhaoYixin HeXiao TangLixin LiRuonan ZhangDaosen ZhaiMDPI AGarticlereconfigurable intelligent surfacesecurityunmanned aerial vehicleScienceQENRemote Sensing, Vol 13, Iss 4286, p 4286 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	reconfigurable intelligent surface security unmanned aerial vehicle Science Q
spellingShingle	reconfigurable intelligent surface security unmanned aerial vehicle Science Q Dawei Wang Yang Zhao Yixin He Xiao Tang Lixin Li Ruonan Zhang Daosen Zhai Passive Beamforming and Trajectory Optimization for Reconfigurable Intelligent Surface-Assisted UAV Secure Communication
description	Unmanned aerial vehicle (UAV) and reconfigurable intelligent surface (RIS) methods are promising techniques for improving the energy and spectrum efficiency of Fifth Generation/Beyond Fifth Generation (5G/B5G) networks. In order to take advantage of both techniques, we propose an RIS-assisted UAV secure communication scheme, where an UAV is equipped with RIS to facilitate secure transmission. To maximize the average secrecy rate, we jointly optimize the beamforming power, reflect phase shift, and UAV’s trajectory. For this non-convex problem, we decompose it into the power beamforming problem, the phase shift optimization problem, and the UAV’s trajectory design problem, and proposed an efficient iterative algorithm to solve the problem. The numerical results verify the superiority of the proposed scheme that can improve the average secure transmission rate by about 20% compared to that of Eavesdropping elimination methods.
format	article
author	Dawei Wang Yang Zhao Yixin He Xiao Tang Lixin Li Ruonan Zhang Daosen Zhai
author_facet	Dawei Wang Yang Zhao Yixin He Xiao Tang Lixin Li Ruonan Zhang Daosen Zhai
author_sort	Dawei Wang
title	Passive Beamforming and Trajectory Optimization for Reconfigurable Intelligent Surface-Assisted UAV Secure Communication
title_short	Passive Beamforming and Trajectory Optimization for Reconfigurable Intelligent Surface-Assisted UAV Secure Communication
title_full	Passive Beamforming and Trajectory Optimization for Reconfigurable Intelligent Surface-Assisted UAV Secure Communication
title_fullStr	Passive Beamforming and Trajectory Optimization for Reconfigurable Intelligent Surface-Assisted UAV Secure Communication
title_full_unstemmed	Passive Beamforming and Trajectory Optimization for Reconfigurable Intelligent Surface-Assisted UAV Secure Communication
title_sort	passive beamforming and trajectory optimization for reconfigurable intelligent surface-assisted uav secure communication
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e44c7b5242014ee9b76dfa8a91c02700
work_keys_str_mv	AT daweiwang passivebeamformingandtrajectoryoptimizationforreconfigurableintelligentsurfaceassisteduavsecurecommunication AT yangzhao passivebeamformingandtrajectoryoptimizationforreconfigurableintelligentsurfaceassisteduavsecurecommunication AT yixinhe passivebeamformingandtrajectoryoptimizationforreconfigurableintelligentsurfaceassisteduavsecurecommunication AT xiaotang passivebeamformingandtrajectoryoptimizationforreconfigurableintelligentsurfaceassisteduavsecurecommunication AT lixinli passivebeamformingandtrajectoryoptimizationforreconfigurableintelligentsurfaceassisteduavsecurecommunication AT ruonanzhang passivebeamformingandtrajectoryoptimizationforreconfigurableintelligentsurfaceassisteduavsecurecommunication AT daosenzhai passivebeamformingandtrajectoryoptimizationforreconfigurableintelligentsurfaceassisteduavsecurecommunication
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Passive Beamforming and Trajectory Optimization for Reconfigurable Intelligent Surface-Assisted UAV Secure Communication

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