Odedeyi, T;
Haigh, PA;
Darwazeh, I;
(2018)
Transmission Line Synthesis Approach to Extending the Bandwidth of LEDs for Visible Light Communication.
In:
Proceedings of the 11th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP) - 2018.
IEEE: Budapest, Hungary.
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Abstract
This paper proposes, for the first time, a transmission line synthesis approach to extending the bandwidth of light-emitting diodes (LEDs) in the context of high capacity visible light communications links. As opposed to the more traditional pre-distortion, amplitude equalisation or driver circuitry based approaches, the extension in bandwidth is achieved by incorporating the LED diffusion capacitance into a pseudo-artificial transmission line (p-ATL) cell with significantly improved transmission and cut-off properties. With the proposed technique, we show the possibility of achieving close to 400% improvement in bandwidth with studies based on a verified LED equivalent model. It is envisaged that the proposed approach will enable bespoke driver circuits based on the individual characteristics of LEDs, while combination with existing bandwidth extension schemes can lead to further improvement.
| Type: | Proceedings paper |
|---|---|
| Title: | Transmission Line Synthesis Approach to Extending the Bandwidth of LEDs for Visible Light Communication |
| Event: | 11th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP) - 2018 |
| ISBN-13: | 9781538613351 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/CSNDSP.2018.8471893 |
| Publisher version: | https://doi.org/10.1109/CSNDSP.2018.8471893 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Visible light communication; light emitting diodes; bandwidth extension; transmission line synthesis |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10061592 |
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