Joint Covert and Secure Communications for Intelligent Reflecting Surface (IRS)-Aided Wireless Networks

This work investigates joint covert and secure communications via intelligent reflecting surface (IRS) in a non-line-of-sight (NLOS) wireless network in the presence of an eavesdropper and a warden. We consider a coordinator of Ben communicates with two users, where one user requires secure communic...

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Bibliographic Details
Published in2023 International Conference on Networking and Network Applications (NaNA) pp. 138 - 142
Main Authors Yang, Yihuai, Shen, Shikai, She, Yumei, Wang, Wu, Yang, Bin, Gao, Yangshui
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2023
Subjects
Body area networks
Computational efficiency
covert communication
covert rate
Intelligent reflecting surface(IRS)
Optimization
secrecy rate
successive convex approximation
Wireless networks
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Summary:This work investigates joint covert and secure communications via intelligent reflecting surface (IRS) in a non-line-of-sight (NLOS) wireless network in the presence of an eavesdropper and a warden. We consider a coordinator of Ben communicates with two users, where one user requires secure communication and the other seeks covert communication. An optimization problem is proposed to maximize the covert rate subject to the constraints of covert requirement, secure communication rate, amplitudes and phase shifts of reflecting elements, and transmit powers of secure and covert communications. We use the successive convex approximation(SCA) method to solve this problem. The numerical results illustrate the effectiveness of utilizing an IRS and highlight the impact of the number of reflecting elements on enhancing communication quality.
DOI:10.1109/NaNA60121.2023.00031