论文标题
智能反射表面，以增强NOMA VLC系统的物理层安全性
Intelligent Reflecting Surfaces for Enhanced Physical Layer Security in NOMA VLC Systems
论文作者
论文摘要
智能反射表面（IRS）的兴起正在为可见光通信（VLC）系统中空前的功能打开了大门。通过控制室内环境中的光传播，可以操纵通道条件以实现特定的关键性能指标。在本文中，我们研究了IRS可以在提高非正交多访问（NOMA）VLC系统的保密能力方面发挥的作用。更具体地说，我们提出了一种基于IRS的物理层安全性（PLS）机制，以减轻NOMA固有的信息泄漏风险。我们的结果表明，在80个IRS元素中，实现的保密能力最多可提高105％。据我们所知，这是第一篇研究基于NOMA的IRS辅助VLC系统的PL。
The rise of intelligent reflecting surfaces (IRSs) is opening the door for unprecedented capabilities in visible light communication (VLC) systems. By controlling light propagation in indoor environments, it is possible to manipulate the channel conditions to achieve specific key performance indicators. In this paper, we investigate the role that IRSs can play in boosting the secrecy capacity of non-orthogonal multiple access (NOMA) VLC systems. More specifically, we propose an IRS-based physical layer security (PLS) mechanism that mitigates the information leakage risk inherent in NOMA. Our results demonstrate that the achieved secrecy capacity can be enhanced by up to 105% for a number of 80 IRS elements. To the best of our knowledge, this is the first paper that examines the PLS of NOMA-based IRS-assisted VLC systems.
