Open AccessSingle cell three-channel wavelength division multiplexing in visible light communication
Author(s) -
Jinyoung An,
Quan Ngoc Pham,
Wan-Young Chung
Publication year - 2017
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.25.025477
Subject(s) - visible light communication , optics , rgb color model , multiplexing , computer science , light emitting diode , channel (broadcasting) , optical filter , frequency division multiplexing , telecommunications , optoelectronics , orthogonal frequency division multiplexing , physics , artificial intelligence
This paper examines the design of a prototype of a single cell three-channel visible light communication (VLC) based on wavelength division multiplexing for a radio frequency (RF)-free indoor healthcare. For a low complexity application, a single red green blue (RGB)-type white light-emitting diode (LED) and a single color sensor are adopted. An active low pass filter is utilized for robust light detection to eliminate ambient light and low frequency noise. The incoming tri-color lights are separated by an adopted color sensor and simultaneously demodulated by a receiver processor. Then, the collected data are monitored in real-time and analyzed to provide the necessary medical attention to the concerned patient.