Experimental multi-user VLC system using non-orthogonal multi-band CAP modulation | Zendy

Petr Pešek | Zendy; Paul Anthony Haigh | Zendy; Othman Isam Younus | Zendy; Petr Chvojka | Zendy; Zabih Ghassemlooy | Zendy; Stanislav Zvánovec | Zendy

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Experimental multi-user VLC system using non-orthogonal multi-band CAP modulation

Author(s) -

Petr Pešek,

Paul Anthony Haigh,

Othman Isam Younus,

Petr Chvojka,

Zabih Ghassemlooy,

Stanislav Zvánovec

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.393813

Subject(s) - subcarrier , baud , visible light communication , optics , modulation (music) , pulse amplitude modulation , computer science , phase modulation , pulse shaping , amplitude modulation , filter (signal processing) , electronic engineering , telecommunications , physics , frequency modulation , pulse (music) , radio frequency , orthogonal frequency division multiplexing , transmission (telecommunications) , phase noise , laser , acoustics , engineering , channel (broadcasting) , light emitting diode , detector , computer vision

This paper provides experimental results for a multi-user visible light communications system using multi-band carrier-less amplitude and phase (m-CAP) modulation scheme. We optimize the system performance by adapting pulse shaping filter parameters, subcarrier spacing and allocating different baud rates to individual sub-bands called allocated m-CAP (Am-CAP). We show that a maximal system data rate of ∼468 Mb/s for four users can be supported while gaining higher flexibility for optimization and the same or lower computational complexity compared with the conventional m-CAP scheme.

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