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Non-Orthogonal Multi-band CAP for Highly Spectrally Efficient VLC Systems

Haigh, PA; Chvojka, P; Ghassemlooy, Z; Zvanovec, S; Darwazeh, I; (2018) Non-Orthogonal Multi-band CAP for Highly Spectrally Efficient VLC Systems. In: 2018 11th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP). IEEE Green open access

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Abstract

In this work we propose and experimentally demonstrate a novel non-orthogonal multi-band carrier-less amplitude and phase (NM-CAP) scheme for bandlimited visible light communication systems in order to increase the spectral efficiency. We show that a bandwidth saving up to 30% can be achieved thus resulting in 44% improvement in the measured spectral efficiency with no further bit error rate performance degradation compared to the traditional m-CAP scheme. We also show that higher order systems can provide higher bandwidth compression than low order systems. Furthermore, with no additional functional blocks at the transmitter or the receiver the proposed scheme introduces no extra computational complexity.

Type: Proceedings paper
Title: Non-Orthogonal Multi-band CAP for Highly Spectrally Efficient VLC Systems
Event: 2018 11th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP), 18-20 July 2018, Budapest, Hungary
ISBN-13: 978-1-5386-1335-1
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/CSNDSP.2018.8471870
Publisher version: https://doi.org/10.1109/CSNDSP.2018.8471870
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: multi-band carrier-less amplitude and phase modulation , non-orthogonal , visible light communications, Spectral efficiency , Bandwidth , Band-pass filters , OFDM , Light emitting diodes , Finite impulse response filters , Frequency measurement
UCL classification: UCL > Provost and Vice Provost Offices
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 Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/10063853
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