Coverage of a shopping mall with flexible OLED-based visible light communications
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Type :
Article
Publication Status :
Published
Access :
openAccess
Abstract
Visible light communications (VLC) can utilize light-emitting diodes (LEDs) to provide illumination and a safe and low-cost broadcasting network simultaneously. In the past decade, there has been a growing interest in using organic LEDs (OLEDs) for soft lighting and display applications in public places. Organic electronics can be mechanically flexible, thus the potential of curved OLED panels/displays devices. This paper provides unique characteristics of a flexible OLED-based VLC link in a shopping mall. We show that, for curved OLED the radiation pattern displays a symmetry, which is wider than Lambertian. A number of scenarios of VLC system with flexible OLED are analyzed. Numerical models for the delay spread and optical path loss are derived, which followed a 2-term power series model for both empty and furnished rooms. We show that using a full-circular OLED for both empty and furnished rooms offers a uniform distribution of emitted power for the same transmission link spans. The link performance using full and half-circular OLED in an empty room shows that the average optical path losses are lower by 5 and 4 dB, compared with the furnished room.
Source :
Optics Express
Date :
2020-03-30
Volume :
28
Issue :
7
Publisher :
The Optical Society
URI
http://hdl.handle.net/10679/7220https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-28-7-10015&id=429382
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