Proceedings ArticleDOI
Visible light communication using OFDM
M.Z. Afgani,Harald Haas,Hany Elgala,Dietmar Knipp +3 more
- pp 129-134
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TLDR
It is demonstrated theoretically and by means of an experimental system that the high peak-to-average ratio in OFDM can be exploited constructively in visible light communication to intensity modulate LEDs.Abstract:
In this paper wireless communication using white, high brightness LEDs (light emitting diodes) is considered. In particular, the use of OFDM (orthogonal frequency division multiplexing) for intensity modulation is investigated. The high peak-to-average ratio (PAR) in OFDM is usually considered a disadvantage in radio frequency transmission systems due to non-linearities of the power amplifier. It is demonstrated theoretically and by means of an experimental system that the high PAR in OFDM can be exploited constructively in visible light communication to intensity modulate LEDs. It is shown that the theoretical and the experimental results match very closely, and that it is possible to cover a distance of up to one meter using a single LED.read more
Citations
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An Efficient Flicker-Free FEC Coding Scheme for Dimmable Visible Light Communication Based on Polar Codes
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On the Performance of Different OFDM Based Optical Wireless Communication Systems
TL;DR: In this article, the performance of DC-biased and asymmetrically clipped optical OFDM (ACO-OFDM) is analyzed in the presence of light emitting diode (LED) nonlinear distortions.
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LED and CMOS Image Sensor Based Optical Wireless Communication System for Automotive Applications
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Human Sensing Using Visible Light Communication
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References
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Wireless Infrared Communications
Joseph M. Kahn,John R. Barry +1 more
TL;DR: The use of infrared radiation as a medium for high-speed short-range wireless digital communication, and several modification formats, including on-off keying (OOK), pulse-position modulation (PPM), and subcarrier modulation, are discussed.
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TL;DR: Based on numerical analyses, it is shown that the proposed indoor visible-light communication system utilizing white LED lights is expected to be the indoor communication of the next generation.
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F.R. Gfeller,U. Bapst +1 more
TL;DR: In this paper, a novel wireless broadcast/multi-access channel for flexibly interconnecting a cluster of data terminals located within the same room is described, where the transmission medium is diffusively scattered infrared radiation at 950-nm wavelength.
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Wireless Infrared Communications
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