A multi-CAP vsible-lightcommunications system with 4.85-b/s/Hz spectral efficiency

Haigh, Paul, Burton, Andrew, Werfli, Khald, Le Minh, Hoa, Bentley, Edward, Chvojka, Petr, Popoola, Wasiu Oyewole, Papakonstantinou, Ioannis and Zvanovec, Stanislav (2015) A multi-CAP vsible-lightcommunications system with 4.85-b/s/Hz spectral efficiency. IEEE Journal on Selected Areas in Communications, 33 (9). pp. 1771-1779. ISSN 0733-8716

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Official URL: http://dx.doi.org/10.1109/JSAC.2015.2433053

Abstract

In this paper, we experimentally demonstrate a multiband carrierless amplitude and phase modulation format for the first time in VLC. We split a conventional carrierless amplitude and phase modulated signal into m subcarriers in order to protect from the attenuation experienced at high frequencies in low-pass VLC systems. We investigate the relationship between throughput/spectral efficiency and m, where m = {10, 8, 6, 4, 2, 1} subcarriers over a fixed total signal bandwidth of 6.5 MHz. We show that transmission speeds (spectral efficiencies) of 31.53 (4.85), 30.88 (4.75), 25.40 (3.90), 23.65 (3.60), 15.78 (2.40), and 9.04 (1.40) Mb/s (b/s/Hz) can be achieved for the listed values of m, respectively.

Item Type: Article
Uncontrolled Keywords: bit error rate, equalizers, light emitting diodes, visible light communications
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Ay Okpokam
Date Deposited: 18 Sep 2015 09:48
Last Modified: 27 Jun 2017 14:56
URI: http://nrl.northumbria.ac.uk/id/eprint/23847

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