VLC for vehicular communications: A multiple input multiple output (MIMO) approach

Abstract

Visible Light Communication (VLC) it's a cheap communication system which uses electromagnetic frequencies from the visible spectrum to fulfil optical communications. It's an active research topic, being used in many research laboratories because of its potential of development. The main contribution of this paper is the development of an adaptive MIMO (Multiple-Input-Multiple-Output) system for VLC using frequency diversity. In this way, a VLC system can use more than one transmitting-receiving frequency, increasing in this way the data rate and the amount of information transmitted. The system is used for ITS (Intelligent Transportation System), where the car headlights can communicate with other LED (Light Emitting Diode) light sources across the road, increasing in this way the road safety. In the last part of the research is related a new approach for a hybrid communication system, integrating VLC with LoRa technology.