Multi-band carrier-less amplitude and phase modulation for highly bandlimited visible light communications

Haigh, Paul, Aguado, Alejandro, Ghassemlooy, Zabih, Chvojka, Petr, Werfli, Khald, Zvanovec, Stanislav, Ertunc, Ezgi and Kanesan, Thavamaran (2015) Multi-band carrier-less amplitude and phase modulation for highly bandlimited visible light communications. In: 2015 International Conference on Wireless Communications & Signal Processing (WCSP), 15-17 October 2015, Nanjing.

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Official URL: http://dx.doi.org/10.1109/WCSP.2015.7341338

Abstract

In this paper we present new numerical results for the signal-to-noise ratio and bit error rate (BER) performances of multi-band carrier-less amplitude and phase (m-CAP) modulation in the context of a highly bandlimited visible light communications (VLC) link. Light-emitting diodes are used as the transmitter and are modelled in this work as an ideal first order analogue low-pass filter. The link bandwidth is given as unity, while the filter cut-off frequency is set to 0.1. The number of bands, or subcarriers, is selected as m = 1, 2, 5 and 10. Here, we show that under such a high bandwidth constraint, using m = 10 subcarriers can result in 40% and 17% improvement in bit rate compared to m = 1 and 2, and m = 5 subcarriers, respectively for the same BER target.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Carrier-less, amplitude and phase modulation, visible light communications
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Ellen Cole
Date Deposited: 11 Jul 2016 13:34
Last Modified: 11 Jul 2016 13:34
URI: http://nrl.northumbria.ac.uk/id/eprint/27244

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