A Photonic Communication Model for Enhancing Safety Messages in VANET Environments
Annotatsiya
The credible sharing and communication of safety information is the key element in minimizing collisions and enhancing situational awareness in Vehicular Ad-Hoc Networks (VANETs). Traditional RF-based solutions of IEEE 802.11p and C-V2X may face congestion, interference, and changing latency in high traffic conditions that may compromise the delivery of event notifications in a timely manner in critical situations. In this paper, a photonic communication model to achieve the augmentation of VANET safety messages through an intensitymodulation/direct-detection (IM/DD) optical medium and embedded into conventional vehicular communication stacks is presented. The suggested architecture includes a scaled photonic transmitter-receiver device, a mobility conscious framework of optical paths and a hybrid RF-photonic framework of receiving messages. A hybrid simulation system of optical modeling with MATLAB, mobility generation with SUMO and network evaluation with NS-3 are created to test the performance in conditions of real urban traffic. The findings indicate that photonic connection greatly minimizes the end-to-end latency and increases the packet delivery ratio compared to RF baselines, especially in dense environments. Seamless hybrid operation is also supported in the model and guarantees reliable transmission of messages even when the line-of-sight is constrained dynamically. These results suggest that the photonic communication can become an efficient supplementary technology in augmenting safety critical communication to intelligent transportation systems in the future.