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Physical Layer Security for uav Communications:A Comprehensive Survey

China Communications 2022年第9期19卷 77-115页

作者： Jue Wang Xuanxuan Wang Ruifeng Gao Chengleyang Lei Wei Feng Ning Ge Shi Jin Tony Q.S.Quek School of Information Science and Technology Nantong UniversityNantong 226109China Department of Electronic Engineering Tsinghua UniversityBeijing 100084China China Academy of Electronics and Information Technology Beijing 100041China School of Transportation and Civil Engineering Nantong UniversityNantong 226109China National mobile Communications Research Laboratory Southeast UniversityNanjing 210096China Information Systems Technology and Design Pillar Singapore University of Technology and DesignSingapore 487372Singapore Nantong Research Institute for Advanced Communication Technologies Nantong 226109China

Due to its high mobility and flexible deployment,unmanned aerial vehicle(uav)is drawing unprecedented interest in both military and civil applications to enable agile and ubiquitous *** operating in an open environment,uav communications benefit from dominant line-of-sight links;however,this on the other hand renders the communications more vulnerable to malicious ***,physical layer security(PLS)has been introduced to uav systems as an important complement to the conventional cryptography-based *** this paper,a comprehensive survey on the current achievements of uav-PLS is *** first introduce the basic concepts including typical static/-mobile uav deployment scenarios,the unique air-toground channel and aerial nodes distribution models,as well as various roles that a uav may act when PLS is ***,we start by reviewing the secrecy performance analysis and enhancing techniques for statically deployed uav systems,and extend the discussion to the more general scenario where the uavs’mobility is further *** both cases,respectively,we summarize the commonly adopted methodologies,then describe important works in the litera ture in ***,potential research directions and challenges are discussed to provide an outlook for future works in the area of uav-PLS.

关键词： physical layer security uav communications static/mobile uav deployment air-to-ground channel trajectory optimization

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