Chvojka, P;
Werfli, K;
Zvanovec, S;
Haigh, PA;
Vacek, VH;
Dvorak, P;
Pesek, P;
(2017)
On the m-CAP Performance with Different Pulse Shaping Filters Parameters for Visible Light Communications.
IEEE Photonics Journal
, 9
(5)
, Article 7906712. 10.1109/JPHOT.2017.2749203.
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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- A nd 8-CAP. We also show that the m-CAP VLC link with ≥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.
| Type: | Article |
|---|---|
| Title: | On the m-CAP Performance with Different Pulse Shaping Filters Parameters for Visible Light Communications |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/JPHOT.2017.2749203 |
| Publisher version: | https://doi.org/10.1109/JPHOT.2017.2749203 |
| Language: | English |
| Additional information: | This is the published version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Multiband carrier-less amplitude and phase modulation, pulse shaping filters, visible light communications, Light emitting diodes, Bandwidth, OFDM, Pulse shaping methods, Frequency response, Ultraviolet sources, Imaging |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10024333 |
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