Physical layer security (PLS) aims to ensure the confidentiality and authenticity of transmitted data by capitalizing on the inherent randomness of wireless channels. Owing to the popularity of intelligent transportation systems (ITSs), PLS research has sparked renewed interest in the wireless research community. This paper investigates the performance of secure communication in the context of a vehicle-to-vehicle (V2V) communication scenario by employing a reconfigurable intelligent surface (RIS). Further, we introduce the concept of non-orthogonal multiple access (NOMA) to reduce latency and improve communication efficiency in V2V networks. This study aims to comprehensively analyze secrecy performance, encompassing parameters like average secrecy capacity (ASC), secrecy outage probability (SOP) and probability of non-zero secrecy capacity (PNZSC). Our research aims to highlight the efficacy of RIS in providing secure and reliable communication within V2V NOMA networks. Ultimately, our study contributes to advancing secure communication protocols in intelligent transportation systems.

中文翻译：

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通过可重构智能表面增强车辆 NOMA 通信安全


物理层安全（PLS）旨在利用无线信道固有的随机性来确保传输数据的机密性和真实性。由于智能交通系统 (ITS) 的普及，PLS 研究重新引发了无线研究界的兴趣。本文通过采用可重构智能表面 (RIS) 研究车对车 (V2V) 通信场景中安全通信的性能。此外，我们引入非正交多址（NOMA）的概念来减少V2V网络中的延迟并提高通信效率。本研究旨在全面分析保密性能，包括平均保密容量（ASC）、保密中断概率（SOP）和非零保密容量概率（PNZSC）等参数。我们的研究旨在强调 RIS 在 V2V NOMA 网络内提供安全可靠通信方面的功效。最终，我们的研究有助于推进智能交通系统中的安全通信协议。