Refas, SouadMeraihi, YassineIvanova, GalinaBaiche, KarimCherif, Amar RamdaneAcheli, Dalila2026-02-222025979-8-3315-7224-2DOI: 10.23919/PEMWN67312.2025.11304127https://dspace.univ-boumerdes.dz/handle/123456789/16101Vehicular visible light communication (V VLC) systems, when combined with reconfigurable intelligent surfaces (RIS), present promising opportunities for improving communication reliability and efficiency in vehicle to vehicle (V2V) environments. Nevertheless, safeguarding these systems at the physical layer remains a critical challenge, particularly given their exposure to jamming threats. In this study, we investigate the physical layer security performance of RIS assisted V2V VLC systems under jamming scenarios, employing realistic V2V VLC channel models. We develop a methodology to examine the impact of various security strategies in mitigating the adverse effects of jamming. Our analysis examines key parameters including the signal to noise ratio SNR, the secure communication rate and the count of RIS units. Simulation results confirm that the proposed security systems significantly enhance the resilience of V2V VLC networks in the presence of jamming attacks. These results offer useful perspectives for the reliable design structure and deployment of RIS based V2V VLC systems in practical vehicular communication settings.enReconfigurable intelligent surfacesPhysical layer securityVisible light communicationArticle