Exploiting Equalization Techniques for Improving Data Rates in Organic Optoelectronic Devices for Visible Light Communications

Haigh, Paul, Ghassemlooy, Zabih, Le Minh, Hoa, Rajbhandari, Sujan, Arca, Francesco, Tedde, Sandro, Hayden, Oliver and Papakonstantinou, Ioannis (2012) Exploiting Equalization Techniques for Improving Data Rates in Organic Optoelectronic Devices for Visible Light Communications. Journal of Lightwave Technology, 30 (19). pp. 3081-3088. ISSN 0733-8724

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Official URL: http://dx.doi.org/10.1109/JLT.2012.2210028

Abstract

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.

Item Type: Article
Uncontrolled Keywords: VLC, equalizers, organic light emitting diodes, organic photodetector
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Sarah Howells
Date Deposited: 17 Sep 2012 11:27
Last Modified: 10 Aug 2015 11:15
URI: http://nrl.northumbria.ac.uk/id/eprint/8932

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