Reflecting Elements Analysis for Secure and Energy-Efficient UAV-RIS System With Phase Errors

被引：13

作者：

Diao, Danyu ^{[1
,2
]}

Wang, Buhong ^{[1
]}

Cao, Kunrui ^{[2
]}

Zheng, Beixiong ^{[3
]}

Dong, Runze ^{[1
]}

Cheng, Tianhao ^{[1
]}

Chen, Jingyu ^{[4
]}

机构：

[1] Air Force Engn Univ, Sch Informat & Nav, Xian 710077, Peoples R China

[2] Xidian Univ, State Key Lab Integrated Serv Networks, Xidian 710071, Peoples R China

[3] South China Univ Technol, Sch Microelect, Guangzhou 511442, Peoples R China

[4] Natl Univ Def Technol, Sch Informat & Commun, Wuhan 430035, Peoples R China

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2024年 / 13卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Autonomous aerial vehicles; Fading channels; Signal to noise ratio; Phase estimation; Relays; Optimized production technology; Jitter; Unmanned aerial vehicle (UAV); reconfigurable intelligent surface (RIS); secrecy performance; energy efficiency; number analysis;

D O I：

10.1109/LWC.2023.3327384

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This letter investigates the minimum number of reflecting elements to achieve secure and energy-efficient unmanned aerial vehicle (UAV)-reconfigurable intelligent surface (RIS) systems. Specifically, we consider a UAV equipped with a RIS as a passive relay to assist communication from a source to users while avoiding terrestrial eavesdroppers. Taking account into phase estimation errors caused by imperfect conditions such as UAV jitter, the minimum number of reflecting elements under secrecy and energy efficiency constraints is derived in closed form. Our simulation results verify the correctness of theoretical derivation and demonstrate that the UAV-RIS systems outperform terrestrial RIS systems. Our research provides theoretical guidance for configuring reflecting elements in practical UAV-RIS systems.

引用

页码：293 / 297

页数：5

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