A Flexible OLED based VLC Link with m-CAP Modulation

Chaleshtori, Zahra Nazari; Burton, Andrew; Ghassemlooy, Zabih; Zvánovec, Stanislav

doi:10.1109/contel.2019.8848543

Cited by 3 publications

(2 citation statements)

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“…A flexible OLED (UNISAGA, the size of 200 × 50 mm 2 ) was characterized in terms of the beam pattern and the spectrum profile, which were then used as the inputs for further simulations. Figure 2(a) illustrates the measured normalized optical spectrum of a flexible OLED at different bias currents I B [22], which shows the peak wavelengths of 620 nm (Red), 553 nm (Green), 454 Note that, non-Lambertian emitters can also be considered by Monte Carlo approaches [23]. Instead of a typical Lambertian profile, in the simulation we have used the measured radiation pattern for the curved OLED, which is wider than Lambertian pattern.…”

Section: Characterization Of a Flexible Oledmentioning

confidence: 99%

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Coverage of a shopping mall with flexible OLED-based visible light communications

et al. 2020

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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.

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Section: Characterization Of a Flexible Oledmentioning

confidence: 99%

“…Characteristics of the flexible OLED adopted in the work: (a) the normalized optical spectrum of the flexible OLED. The peak wavelengths is marked and the legend color scale represents I B[22]. (b) The intensity pattern of OLED panel bent in different curvature such that we have a quadrature, half and three-quadrature-circle of lighting.…”

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confidence: 99%