IRS-assisted secure wireless communication system with quantum honey badger algorithm

被引：0
作者：
Cui, Wen [1 ]
Zhao, Lin [1 ]
Cheng, Jianhua [1 ]
Gao, Hongyuan [2 ]
机构：
[1] College of Intelligent System Science and Engineering, Harbin Engineering University, No. 145, Nantong Street, Nangang District, Harbin
[2] College of Information and Communication Engineering, Harbin Engineering University, No. 145, Nantong Street, Nangang District, Harbin
来源：
Physical Communication | 2025年 / 72卷
基金：
中国国家自然科学基金;
关键词：
Intelligent reflecting surface; Quantum honey badger algorithm; Secrecy rate; Secure wireless communication;
D O I：
10.1016/j.phycom.2025.102749
中图分类号：
学科分类号：
摘要：
In an environment with intelligent reflecting surface (IRS), desired signals are enhanced or unwanted signals are suppressed through adaptively adjusting reflecting unit's phase shift. When there is a single-antenna eavesdropper, a single-antenna user received confidential messages from a multi-antenna access point (AP), thus formed our secure wireless communication system. The system initially adopted passive reflecting units, and in order to enhance secure wireless transmission, we propose a new active IRS-assisted system. For the secrecy rate optimization problem in secure wireless communication system, to effectively obtain an exact solution is difficult as it is non-convex property. Aiming at solving the optimization problem above, we newly proposed quantum honey badger algorithm (QHBA). Through jointly designing the reflect beamforming at IRS and transmit beamforming at AP in a legitimate communication link by QHBA, we have maximized the secrecy rate. For both active and passive IRS-assisted secure wireless communication system, we have significantly improved the secrecy rate compared with several traditional swarm intelligence algorithms through simulation results after applying the novel algorithm proposed above. © 2025
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