Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/76267
Title: Color-shift keying-how its largest obtainable "Minimum Distance" depends on its preset operating chromaticity and constellation size
Authors: Aziz, AE 
Wong, KT 
Chen, JC
Keywords: Colorimetry
Intensity modulation
Light emitting diodes
Optical communication
Visible light communication
Issue Date: 2017
Publisher: Institute of Electrical and Electronics Engineers
Source: Journal of lightwave technology, 2017, v. 35, no. 13, p. 2724-2733 How to cite?
Journal: Journal of lightwave technology 
Abstract: Color-shift keying (CSK) is a type of visible light wireless communication, where a visible color is preset and is to appear constant during the human vision's "critical flicker fusion threshold" and "critical color fusion threshold." This paper is first in the open literature to systematically investigate how CSK's largest achievable "minimum distance" (d(min)) would vary with the preset chromaticity and with the constellation size (M). This paper discovers this elegant approximation: The best d(min) approximate to 1.921M(-0.5985) - 2.736M(-0.645) ((x) over tilde (2) + (y) over tilde (2))(0.7802) (log(2) M)(-0.436), where ((x) over tilde, (y) over tilde) refers to the preset chromaticity's displacement (in a two-dimensional space) from the case of all LEDs emitting with an equal intensity.
URI: http://hdl.handle.net/10397/76267
ISSN: 0733-8724
EISSN: 1558-2213
DOI: 10.1109/JLT.2017.2693363
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