Secure Communication Method Based on Intelligent Reflection Surface Assisted UAV Relay System

LU Weidang; CAO Mingfeng; GAO Yuan; CAO Jiang; HUA Qiaozhi; LI Bo; ZHAO Nan

doi:10.11999/JEIT211379

Volume 44 Issue 7

Jul. 2022

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Article Navigation > Journal of Electronics & Information Technology > 2022 > 44(7): 2273-2280

LU Weidang, CAO Mingfeng, GAO Yuan, CAO Jiang, HUA Qiaozhi, LI Bo, ZHAO Nan. Secure Communication Method Based on Intelligent Reflection Surface Assisted UAV Relay System[J]. Journal of Electronics & Information Technology, 2022, 44(7): 2273-2280. doi: 10.11999/JEIT211379

Citation:

LU Weidang, CAO Mingfeng, GAO Yuan, CAO Jiang, HUA Qiaozhi, LI Bo, ZHAO Nan. Secure Communication Method Based on Intelligent Reflection Surface Assisted UAV Relay System[J]. Journal of Electronics & Information Technology, 2022, 44(7): 2273-2280. doi: 10.11999/JEIT211379

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Secure Communication Method Based on Intelligent Reflection Surface Assisted UAV Relay System

doi: 10.11999/JEIT211379

1.
School of Information Engineering, Zhejiang University of Technology, Hangzhou 310023, China
2.
War Research Institute of PLA Academy of Military Sciences, Beijing 100091, China
3.
School of Computer Engineering, Hubei University of Arts and Sciences, Xiangyang 441053, China
4.
School of Science and Engineering, Harbin Institute of Technology(Weihai), Weihai 264209, China
5.
School of Information and Communication Engineering, Dalian University of Technology, Dalian 116024, China

Funds: The National Natural Science Foundation of China (61871348), Hubei Natural Science Foundation (2021CFB156), The Research Fund Program of Guangdong Key Laboratory of Aerospace Communication and Networking Technology (2018B030322004)

Received Date: 2021-11-30
Accepted Date: 2022-05-05
Rev Recd Date: 2022-04-11

Available Online: 2022-05-08

Publish Date: 2022-07-25

Abstract

Abstract

To improve the security of wireless transmission system and solve the problem that wireless channel is easily blocked by obstacles, a secure communication method based on an Intelligent Reflecting Surface (IRS) assisted Unmanned Air Vehicle (UAV) relay system is proposed. In the proposed method, the minimum-secrecy are maximized by jointly optimizing the position of UAV, beamforming at base station and phase shifts of IRS. To solve this complicated non-convex optimization problem, the original problem is divided into UAV position optimization sub-problem, beamforming and IRS’s phase shifts optimization sub-problem. The first order Taylor expansion method is applied to handle the non-convex terms of the optimization problems. Then, an alternate optimization algorithm is proposed to solve the problem. The simulation results shows that the proposed algorithm can improve the minimum-secrecy rate, and its convergence is well.
- Unmanned Air Vehicle (UAV),
- Intelligent Reflecting Surface (IRS),
- Secure communication,
- Beamforming

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References(23)

References

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