Experimental demonstration of LED-based vehicle to vehicle communication under atmospheric turbulence

Visible light communication (VLC) has been extensively studied for vehicle-to-vehicle (V2V) communication due to its inherent benefits. The effect of atmospheric turbulence, particularly in rainy condition, on the V2V communication using VLC is examined. The experiments for the V2V communication system was implemented with a modified fixed decision threshold (MFDT) scheme in the presence of rain drops. In the proposed study, a red light emitting diode (LED) representing the taillight of a vehicle is employed for transmitting signal and a photodiode is used to recover the transmitted the data using MFDT. It is demonstrated that the proposed V2V communication using VLC under the rainy condition is accurate and reliable with the help of MFDT.