On the m-CAP Performance with Different Pulse Shaping Filters Parameters for Visible Light Communications

Chvojka, Petr, Werfli, Khald, Zvanovec, Stanislav, Haigh, Paul, Vacek, Vaclav, Dvorak, Petr, Pesek, Petr and Ghassemlooy, Zabih (2017) On the m-CAP Performance with Different Pulse Shaping Filters Parameters for Visible Light Communications. IEEE Photonics Journal, 9 (5). pp. 1-12. ISSN 1943-0655

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Abstract

In pulse shaping filters, parameters such as the roll-off factor and the symbol span, which determine the overall performance, are of great importance when implementing a real-time system due to limited hardware resources. In this paper, we experimentally investigate a multiband carrier-less amplitude and phase (m-CAP) visible light communications (VLC) system employing such filters and assess the link performance for a range of filter lengths and show the relationship between the system data rate (or spectral efficiency) and computational complexity. We show that lower order m-CAP can offer the same system performance as higher order systems while offering much lower computational complexity. By optimizing the filter parameters and the order m of an m-CAP VLC link, we achieve the largest improvement in the data rate and bandwidth efficiency of 9.69% and 40.43%, respectively, when compared with 2- and 8-CAP. We also show that the m-CAP VLC link with m≥6 can be designed with the same filter parameters to demonstrate a link with both the highest data rate and spectral efficiency simultaneously in contrast to lower order systems.

Item Type:	Article
Uncontrolled Keywords:	Multiband carrier-less amplitude and phase modulation, pulse shaping filters, visible light communications
Subjects:	H600 Electronic and Electrical Engineering P900 Others in Mass Communications and Documentation
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Becky Skoyles
Date Deposited:	05 Oct 2017 11:25
Last Modified:	10 Oct 2019 19:01
URI:	http://nrl.northumbria.ac.uk/id/eprint/32207

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