Technology of Network & Communication
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App. Res. of Comp. Printed Article
Vol. 40, 2023 No. 9
2798-2802

Safe transmission scheme of physical layer for intelligent reflecting surface assisted unmanned aerial vehicle

Dai Qiuxiang1
Xiao Hailin1
Zhang Zhongshan2
Zhang Yuejun3
1. School of Computer Science & Information Engineering, Hubei University, Wuhan 430000, China
2. School of Information & Electronics, Beijing Institute of Technology, Beijing 100081, China
3. Faculty of Information Science & Technology, Ningbo University, Ningbo Zhejiang 315211, China
DOI: 10.19734/j.issn.1001-3695.2022.12.0827

Abstract

In wireless communication system, buildings or active eavesdroppers by illegal devices can block the communication link between the transmitter and receiver. Utilizing the flexible mobility of UAV and the intelligent controllable characteristic of IRS in wireless environment, this paper proposed a safe transmission scheme of physical layer for IRS assisted UAV to maximize the averaged secrecy rate of the legitimate link. The scheme firstly utilized block coordinate descent method to decompose the average secrecy rate maximization problem of the system into three sub-problems: UAV-IRS flight trajectory optimization, IRS phase shift optimization and transmission power optimization. And then, this scheme transformed each subproblem into a convex optimization subproblem by utilizing relaxation variables, phase alignment and successive convex approximation methods, respectively. Furthermore, this paper used the alternating optimization method to obtain the maximum average secrecy rate of the system. Numerical simulation results show that the transmission power of the source node, the flight position and altitude of UAV-IRS and the number of IRS reflective elements are the main factors for improving the averaged secrecy rate of the legitimate link. The proposed scheme can effectively improve the average secrecy rate of the system with good convergence by comparing with the other two benchmark schemes.

Foundation Support

国家自然科学基金资助项目(61872406)
广西重点研发计划资助项目(桂科AB23026034)
广西自然科学基金资助项目(2018GXNSFBA281057)
湖北省高等学校优秀中青年科技创新团队计划资助项目(T2021001)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2022.12.0827
Publish at: Application Research of Computers Printed Article, Vol. 40, 2023 No. 9
Section: Technology of Network & Communication
Pages: 2798-2802
Serial Number: 1001-3695(2023)09-037-2798-05

Publish History

[2023-03-16] Accepted Paper
[2023-09-05] Printed Article

Cite This Article

代秋香, 肖海林, 张中山, 等. 智能反射面辅助无人机的物理层安全传输方案 [J]. 计算机应用研究, 2023, 40 (9): 2798-2802. (Dai Qiuxiang, Xiao Hailin, Zhang Zhongshan, et al. Safe transmission scheme of physical layer for intelligent reflecting surface assisted unmanned aerial vehicle [J]. Application Research of Computers, 2023, 40 (9): 2798-2802. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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