Non-orthogonal frequency shift keying for optical wireless link based on visible light emitting diode

A non-orthogonal frequency shift keying (NOFSK) modulation technique, which improves the transmission capacity of an optical wireless link based on a visible light emitting diode (LED), is proposed in this paper. A NOFSK signal with the modulation order of 4 is generated and then is transmitted usin...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-02, Vol.814 (1), p.12021
Main Authors: Won, Yong-Yuk, Yoon, Sang Min, Seo, Dongsun
Format: Article
Language:English
Subjects:
Bit error rate
Frequency shift keying
Light emitting diodes
Modulation
Optical wireless
Physics
Service introduction
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Summary:A non-orthogonal frequency shift keying (NOFSK) modulation technique, which improves the transmission capacity of an optical wireless link based on a visible light emitting diode (LED), is proposed in this paper. A NOFSK signal with the modulation order of 4 is generated and then is transmitted using an optical wireless link based on the white LED in order to verify experimentally the proposed technique. One more bit per symbol are transmitted successfully showing the only 3% increase of 2-MHz physical bandwidth at the bit error rate (BER) below 10-5.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/814/1/012021