Visible light positioning: Automotive use case

From today's VANETs to tomorrow's planning and the bets for the day after

“…As discussed in [72], VLC permits an accurate relative positioning among cars (with a magnitude as low as 1 cm). Notably, an accurate relative positioning may be also the key for an improved absolute positioning.…”

The potential benefits of on-board Li-Fi for the cooperation among vehicles

“…Last but not least, there is the possibility of measuring (iv) time difference of arrival (TDoA), a technique which is also known as multilateration and consists in measuring the difference in distance to stations at known locations that broadcast signals at known times. TDoA has been used for positioning indoor, to a fixed infrastructure (whose position is known) and has been recently adapted to the case of MIMO, but can well suite also the case of indoor Li-Fi and has been recently adapted [11] [17] for the geometry of cars (Fig. 3), where you have two transmitters and two receivers, each couple characterized by a known distance (d 1 and d 2 in figure).…”

Traffic light to vehicle visible light communication channel characterization

“…Outdoor VLC mainly utilizes traffic related infrastructures to broadcast traffic or location information to automobiles, such as traffic lights, street lights, and automobile headlights or taillights [1][2][3][4][5]. They can also help to realize ranging [6] and information exchange between automobiles [7].…”