Enhancing Security in 6G Vehicular Networks: Leveraging VLC and MMW Integration and Cooperative Relaying Technique

Future sixth-generation (6G) networks aim to support high-performance vehicular applications with ultra-high throughput, massive connectivity, low latency, and reliable quality of service. Emerging technologies like visible light communication (VLC) and millimeter wave (MMW) transmission show promise in meeting these demands. However, security remains a critical open challenge for their individual deployment in vehicular domains. To address this, we propose an innovative algorithm that integrates VLC and MMW to enhance security. Our algorithm selects the most suitable technology for communication based on secrecy capacity levels in various road scenarios. Additionally, we introduce a fail-safe solution using a decode and forward relaying scheme for enhanced security if direct VLC/MMW transmission fails to meet security requirements. Our results demonstrate the effectiveness of the algorithm in ensuring robust security and connectivity among vehicles, advancing 6G wireless networks.