MAC/PHY Comprehensive Visible Light Communication Networks Simulation.

Autor: Torres-Zapata E; Institute for Technological Development and Innovation in Communications (IDeTIC), Universidad de Las Palmas de Gran Canaria, 35001 Las Palmas, Spain., Guerra V; Institute for Technological Development and Innovation in Communications (IDeTIC), Universidad de Las Palmas de Gran Canaria, 35001 Las Palmas, Spain., Rabadan J; Institute for Technological Development and Innovation in Communications (IDeTIC), Universidad de Las Palmas de Gran Canaria, 35001 Las Palmas, Spain., Luna-Rivera M; Facultad de Ciencias, Universidad Autonoma de San Luis Potosi (UASLP), San Luis Potosi 78295, Mexico., Perez-Jimenez R; Institute for Technological Development and Innovation in Communications (IDeTIC), Universidad de Las Palmas de Gran Canaria, 35001 Las Palmas, Spain.
Jazyk: angličtina
Zdroj: Sensors (Basel, Switzerland) [Sensors (Basel)] 2020 Oct 23; Vol. 20 (21). Date of Electronic Publication: 2020 Oct 23.
DOI: 10.3390/s20216014
Abstrakt: 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.
Databáze: MEDLINE
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