Visible Light Communication System for Platooning Applications
Résumé
Vehicle-to-vehicle (V2V) communication is crucial in platooning configurations to ensure lateral and longitudinal control of the vehicle trajectory and thus must be reliable. Though radio frequency (RF) systems are widely used for their numerous qualities, their performances can be severely degraded in dense traffic scenario. Visible light communication (VLC), which is not as sensible, could be used as a complementary technology. In this work, a simple and low-cost VLC system suitable for V2V communications is presented. An off-the-shelf central stop lamp, composed of six low-power light-emitting diodes (LED), is used as emitter whereas a photodiode (PD) coupled with an analog processing circuit is used as receiver. This system provides, at a rate of 100 kbps and without errors, a packet delivery ratio (PDR) of 100% over 4.5 m and 77% over 6 m while keeping the transmission latency under 6 ms and is thus compatible with platooning applications.
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