Lookup NU author(s): Dr Paul Haigh
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This paper presents the use of equalization techniques in visible light communication (VLC) systems in order to increase the data rate. Here we investigate two VLC links a silicon (Si) light emitting diode (LED) and an organic photodetector (OPD), and an organic LED (OLED) plus an Si photodetector (PD), together with three equalization schemes of an RC high pass equalizer, a fractionally spaced zero-forcing equalizer (ZF) and an artificial neural network (ANN). In addition we utilize a pre-distortion scheme to enhance the performance of the digital equalizers. For both systems the bit rate achieved are 750 kb/s from a raw bandwidth (BW) of 30 kHz and 550 kb/s from a raw BW of 93 kHz. © 2012 IEEE.
Author(s): Haigh PA, Ghassemlooy Z, Le Minh H, Rajbhandari S, Arca F, Tedde SF, Hayden O, Papakonstantinou I
Publication type: Article
Publication status: Published
Journal: Journal of Lightwave Technology
Print publication date: 01/10/2012
Online publication date: 26/07/2012
ISSN (print): 0733-8724
ISSN (electronic): 1558-2213
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