1.4-Mb/s white organic LED transmission system using discrete multitone modulation

Haigh, Paul, Ghassemlooy, Zabih and Papakonstantinou, Ioannis (2013) 1.4-Mb/s white organic LED transmission system using discrete multitone modulation. IEEE Photonics Technology Letters, 25 (6). pp. 615-618. ISSN 1041-1135

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Official URL: http://dx.doi.org/10.1109/LPT.2013.2244879

Abstract

In this letter, we experimentally demonstrate the discrete multitone (DMT) modulation scheme for organic light emitting diode-based visible light communications (OLED-VLC). DMT is based upon quadrature modulation of orthogonally spaced frequencies, meaning the scheme is extremely spectrally efficient. With this technique, we set a new world record data rate of 1.4 Mb/s, which is far in excess of the previous record of 550 kb/s. We achieve this using a 32-level quadrature amplitude modulation (32-QAM) in conjunction with 1024 subcarriers. We show that it is possible to recover signals up to 1.4 Mb/s with an OLED of bandwidth less than 100 kHz, which is an increase of over 14 times.

Item Type: Article
Uncontrolled Keywords: Discrete multitone, organic light emitting diode, visible light communications
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics and Information Sciences
Depositing User: Sarah Howells
Date Deposited: 08 May 2013 15:15
Last Modified: 10 Aug 2015 11:10
URI: http://nrl.northumbria.ac.uk/id/eprint/12490

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