Dual-Channel Visible Light Communication System for Enhanced V2V Video Streaming

Visible light communication (VLC) operates on the principle of modulating light-emitting diodes (LEDs) for data transmission at frequencies imperceptible to the human eye. In vehicular communication, VLC leverages existing vehicle lighting infrastructure, such as headlights and taillights, to transmit data. This enables the sharing of real-time video feeds from onboard vehicle cameras with other vehicles, allowing drivers to see beyond the immediate traffic ahead. In this paper, we present an experimental study that demonstrates vehicle-to-vehicle (V2V) video streaming by using both headlights as wireless transmitters. This approach reduces the likelihood of signal degradation or interruptions caused by obstacles, movement, or changing road conditions. By leveraging multiple light sources, the system ensures a more stable and consistent data flow, improving overall performance and robustness in dynamic vehicular environments. Our experimental setup utilizes modified software-defined radio platforms for baseband processing and a custom-designed frontend featuring truck low-beam LED headlights. A real-time video streaming demonstration is conducted with our prototype to validate the feasibility of dual-channel VLC for vehicular connectivity using both headlights.