Characterization of RGB LEDs as Emitter and Photodetector for LED-to-LED Communication

Galal, Mariam, Ng, Wai Pang, Binns, Richard and El Aziz, Ahmed Abd (2020) Characterization of RGB LEDs as Emitter and Photodetector for LED-to-LED Communication. In: 2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP 2020). IEEE, Piscataway, pp. 385-390. ISBN 9781728160511, 9781728167435

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Visible Light Communication (VLC) has rapidly grown over the last decade. However, unlike RF technologies, VLC has a simplex channel since two different devices are used for transmitting and receiving. This increases the cost and complexity of the transceiver circuit when a bidirectional link is required. LED-to-LED communication is a potential solution for a half-duplex channel. It utilizes the LED as photodetector for detection. This paper practically examines the RGB LED characteristics with emphasis on responsivity, wavelength sensitivity and angular response. The LED photodetector has a bandwidth of 6 MHz, responsivity of 256 nA/mW and FWHM of 18°.

Item Type: Book Section
Uncontrolled Keywords: Visible light communications, LED-to-LED communication, RGB LED photodetector, responsivity, bandwidth
Subjects: F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: John Coen
Date Deposited: 10 Mar 2021 11:09
Last Modified: 31 Jul 2021 15:20

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