Modulation selection for visible light communications using lighting LEDs

Jerzy Siuzdak

doi:10.1117/12.2194719

11 September 2015 Modulation selection for visible light communications using lighting LEDs

Jerzy Siuzdak

Proceedings Volume 9662, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015; 966204 (2015) https://doi.org/10.1117/12.2194719
Event: XXXVI Symposium on Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments (Wilga 2015), 2015, Wilga, Poland

Abstract

The paper analyzes suitability of various spectrally efficient modulations (PAM, CAP, OFDM/DMT) in a VLC system using lighting LEDs as a transmitter. Although under ideal conditions all modulation have similar efficiency i.e. they produce similar throughputs with a given BER, their practical performances are different. For example, the level of nonlinear distortions generated by each modulation is the least for PAM and by far the greatest for OFDM/DMT locating CAP in the middle. The suitability of various OFDM/DMT variants in a VLC LED link was also analyzed proving that the asymmetrically clipped (ACO) OFDM has a worse performance as compared with DC biased (DCO) OFDM.

Citation Download Citation

Jerzy Siuzdak "Modulation selection for visible light communications using lighting LEDs", Proc. SPIE 9662, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015, 966204 (11 September 2015); https://doi.org/10.1117/12.2194719

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KEYWORDS

Modulation

Orthogonal frequency division multiplexing

Light emitting diodes

Light sources and illumination

Signal to noise ratio

Transmitters

Visible radiation

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