论文标题
通过智能反射表面保护双向通信
Secure Two-Way Communications via Intelligent Reflecting Surfaces
论文作者
论文摘要
在这封信中，我们建议利用智能反射表面（IRS）来确保Multiuser双向通信。具体来说，两个最终用户同时传输其信号，其中将一个用户的信号当作信息堵塞以破坏在窃听器上的另一个用户信号的接收。开发了一种简单的用户调度方案来提高保密率。分析结果是根据平均保密率的下限及其规模定律得出的，以评估保密性能并获得宝贵的设计见解。提供了模拟结果以确认理论分析的准确性，并验证了与其他基线方案相比，所提出的方案的保密改进。
In this letter, we propose to exploit an intelligent reflecting surface (IRS) to secure multiuser two-way communications. Specifically, two end users simultaneously transmit their signals, where the signal of one user is exploited as information jamming to disrupt the reception of the other user's signal at an eavesdropper. A simple user scheduling scheme is developed to improve the secrecy rate. Analytical results in terms of a lower bound on the average secrecy rate and its scaling laws are derived to evaluate the secrecy performance and obtain valuable design insights. Simulation results are provided to confirm the accuracy of the theoretical analysis and validate the secrecy improvement of the proposed scheme over other baseline schemes.
