RGB visible light communication using mobile-phone camera and multi-input multi-output | Zendy

Kevin Liang | Zendy; ChiWai Chow | Zendy; Yang Liu | Zendy

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RGB visible light communication using mobile-phone camera and multi-input multi-output

Author(s) -

Kevin Liang,

ChiWai Chow,

Yang Liu

Publication year - 2016

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.24.009383

Subject(s) - rgb color model , visible light communication , rolling shutter , computer science , optics , image sensor , color filter array , light emitting diode , transmission (telecommunications) , color gel , optical filter , artificial intelligence , telecommunications , materials science , shutter , physics , layer (electronics) , composite material , thin film transistor

Red, green, blue (RGB) light-emitting-diodes (LEDs) are used to increase the visible light communication (VLC) transmission capacity via wavelength-division-multiplexing (WDM), and the color image sensor in mobile phone is used to separate different color signals via a color filter array. However, due to the wide optical bandwidths of the color filters, there is a high spectral overlap among different channels, and a high inter-channel interference (ICI) happens. Here, we propose and demonstrate an RGB VLC transmission using CMOS image sensor with multi-input multi-output (MIMO) technique to mitigate the ICI and retrieve the three independent color channels in the rolling shutter pattern. Data pattern extinction-ratio (ER) enhancement and thresholding are deployed.

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