IRS-Assisted UAV Covert Communication via Location and Power Optimization

被引：1

作者：

Wang, Chao ^{[1
]}

Chen, Xinying ^{[1
]}

An, Jianping ^{[2
]}

Xiong, Zehui ^{[3
]}

Xing, Chengwen ^{[2
]}

Zhao, Nan ^{[1
]}

Niyato, Dusit ^{[4
]}

机构：

[1] Dalian Univ Technol, Sch Informat & Commun Engn, Dalian, Peoples R China

[2] Beijing Inst Technol, Sch Informat & Elect, Beijing, Peoples R China

[3] Singapore Univ Technol & Design, Informat Syst Technol & Design Pillar, Singapore, Singapore

[4] Nanyang Technol Univ, Sch Comp Sci & Engn, Singapore, Singapore

来源：

2022 14TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING, WCSP | 2022年

基金：

国家重点研发计划;

关键词：

Covert communication; intelligent reflecting surface; location optimization; power allocation; unmanned aerial vehicle;

D O I：

10.1109/WCSP55476.2022.10039101

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we propose a covert communication scheme assisted by UAV-IRS to maximize the covert transmission rate. The ground transmitter, Alice, secretly delivers the private message to a legitimate receiver, Bob, via the UAV-IRS, wishing that the transmission will not be noticed by the warden, Willie. Willie is adversarial to Alice and the UAV-IRS, which makes his accurate location difficult to obtain. Given this fact, we first determine an optimal detection threshold and derive the error detection probability at Willie, which is the worst-case situation for the legitimate transmission. Then, we maximize the covert transmission rate by alternatively optimizing the transmit power of Alice, the IRS phase shift and the horizontal location of UAV-IRS subject to the covert requirements. Numerical results are presented to demonstrate the effectiveness of the proposed covert communication scheme assisted by UAV-IRS.

引用

页码：275 / 280

页数：6

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