DocumentCode :
47229
Title :
A 3-Gb/s Single-LED OFDM-Based Wireless VLC Link Using a Gallium Nitride 
Author :
Tsonev, Dobroslav ; Hyunchae Chun ; Rajbhandari, Sujan ; McKendry, Jonathan J. D. ; Videv, Stefan ; Gu, Erdan ; Haji, Mohsin ; Watson, Scott ; Kelly, Anthony E. ; Faulkner, Grahame ; Dawson, Martin D. ; Haas, Harald ; O´Brien, Dominic
Author_Institution :
Inst. for Digital Commun., Univ. of Edinburgh, Edinburgh, UK
Volume :
26
Issue :
7
fYear :
2014
fDate :
1-Apr-14
Firstpage :
637
Lastpage :
640
Abstract :
This letter presents a visible light communication (VLC) system based on a single 50- μm gallium nitride light emitting diode (LED). A device of this size exhibits a 3-dB modulation bandwidth of at least 60 MHz - significantly higher than commercially available white lighting LEDs. Orthogonal frequency division multiplexing is employed as a modulation scheme. This enables the limited modulation bandwidth of the device to be fully used. Pre- and postequalization techniques, as well as adaptive data loading, are successfully applied to achieve a demonstration of wireless communication at speeds exceeding 3 Gb/s. To date, this is the fastest wireless VLC system using a single LED.
Keywords :
III-V semiconductors; OFDM modulation; equalisers; gallium compounds; light emitting diodes; optical communication equipment; optical links; wide band gap semiconductors; GaN; adaptive data loading; bit rate 3 Gbit/s; light emitting diode; microLED; modulation bandwidth; orthogonal frequency division multiplexing; postequalization technique; preequalization technique; single LED OFDM based wireless VLC Link; size 50 mum; visible light communication system; wireless communication; Bandwidth; Light emitting diodes; Loading; Modulation; OFDM; Signal to noise ratio; Wireless communication; OFDM; Visible light communication; optical modulation; optical wireless communication;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2013.2297621
Filename :
6701327
Link To Document :
