Visible to the public On the need for coordinated access control for vehicular visible light communication

TitleOn the need for coordinated access control for vehicular visible light communication
Publication TypeConference Paper
Year of Publication2018
AuthorsMemedi, A., Sommer, C., Dressler, F.
Conference Name2018 14th Annual Conference on Wireless On-demand Network Systems and Services (WONS)
KeywordsAccess Control, access protocols, collision domain, coordinated access control, dedicated medium access control, high throughput applications, huge unlicensed spectrum, IEEE 802.15 Standard, Interference, interference-induced packet loss, LOS requirement, Luxembourg mobility model, Metrics, negligible interference, optical communication, Packet loss, pubcrawl, Receivers, Resiliency, Roads, Scalability, V-VLC, vehicular communications, vehicular visible light communication, Vehicular VLC, Visible Light Communications Security
AbstractWe argue on the need for a dedicated medium access control (MAC) for Vehicular VLC (V-VLC). The huge unlicensed spectrum that can support high throughput applications and the intrinsic security due to the LOS requirement make visible light a viable candidate for use in vehicular communications. In some first research work, the directionality of V-VLC has been considered and an initial conclusion was that the small collision domain leads to negligible interference and, thus, dedicated mechanisms for medium access are unnecessary. However, in a more realistic simulation setup using the Luxembourg mobility model, we are able to show that, in certain geographical areas, the number of transmitters seen at a single receiver can easily grow up to 30. Considering packet transmissions, the interference-induced packet loss can be substantial, reaching up to 13 % during rush hours. We thus make the case that this packet loss should be mitigated with a dedicated MAC for coordinated access control in V-VLC.
DOI10.23919/WONS.2018.8311673
Citation Keymemedi_need_2018