MAC/PHY comprehensive visible light communication networks simulation

In this paper, the effect of channel conditions on the global behavior of a wireless Visible Light Communications (VLC) optical network are studied. It presents a system-level simulator that considers jointly a channel propagation model and the MAC mechanisms to have a realistic description of the network, even in situations where the emitted signal is heavily affected by reflections in any close surface or obstacle. The resulting platform also accurately evaluates both Line-Of-Sight (LOS) and Non-LOS (NLOS) contributions on each node and enables the effective use of Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) schemes as defined by IEEE 802.15.7r1 standard, as well as allows a correct evaluation of lifelike problems such as the effect of hidden nodes. This work shows the necessity of accurately modeling VLC MAC layer performances, taking also into account the physical nature of visible light propagation in indoor scenarios. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.

Channel simulation; IEEE 802.15.7; MAC layer simulation; MAC/PHY simulation; Network simulation; Visible light communications Carrier communication; Carrier sense multiple access; Light; Petroleum reservoir evaluation; Carrier sense multiple access with collision avoidances; Channel conditions; Channel propagation; Global behaviors; Line of Sight; Physical nature; System level simulator; Visible light communications (VLC); Visible light communication

VIVO