Impact of industrial environments on visible light communication

verfasst von

Daniel Schneider, Abhijeet Shrotri, Holger Flatt, Stübbe Oliver Stübbe, Alexander Wolf, Roland Lachmayer, Christian Alexander Bunge

Abstract

Visible-light communication is a promising technology for industrial environments. However, a variety of physical effects may influence the communication quality in this potentially harsh environment: Dust and other particles lead to increased attenuation. Artificial light sources and industrial processes, such as grinding and welding, cause optical cross-talk. A multitude of reflective surfaces can lead to fading due to multi-path propagation. These three aspects are experimentally investigated in exemplary manufacturing processes at five different production sites in order to estimate the relative importance and their specific impact on VLC transmission in industrial areas. Spectral measurements demonstrate the presence of interfering light sources, which occupy broad parts of the visible spectrum. They give rise to flickering noise, which comprises a set of frequencies in the electrical domain. The impact of these effects on the communication is analysed with reference to the maximum achievable channel capacity and data rate approximation based on on-off keying is deduced. It is found that cross-talk by environmental and artificial light sources is one of the strongest effects, which influences the optical, but also the electrical spectrum. It is also observed that industrial areas differ strongly and must be categorised according to the manufacturing processes, which can induce quite a variation of dust and attenuation accordingly.

Organisationseinheit(en)

Institut für Produktentwicklung und Gerätebau
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

Externe Organisation(en)

Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (IOSB)
Technische Hochschule Ostwestfalen-Lippe
Hochschule für Technik, Wirtschaft und Kultur Leipzig (HTWK)

Typ

Artikel

Journal

Optics Express

Band

29

Seiten

16087-16104

Anzahl der Seiten

18

ISSN

1094-4087

Publikationsdatum

24.05.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Atom- und Molekularphysik sowie Optik

Elektronische Version(en)

https://doi.org/10.1364/OE.421757 (Zugang: Offen)