Convex optimization approach to multi-level modulation for dimmable visible light communications under LED efficiency droop

Sang Hyun Lee; Il Kyu Park; Jae Kyun Kwon

doi:10.3807/JOSK.2016.20.1.029

Convex optimization approach to multi-level modulation for dimmable visible light communications under LED efficiency droop

Sang Hyun Lee, Il Kyu Park, Jae Kyun Kwon

Dept. of Materials Science & Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This paper deals with a design method and capacity loss of an efficient multi-level modulation scheme for dimmable visible light communications (VLC) systems that use light-emitting diodes (LEDs) with efficiency droop. To this end, the impact of such an impairment on dimmable VLC is addressed with respect to multi-level modulations based on pulse-amplitude modulation (PAM) via data-rate optimization formulation.

Original language	English
Pages (from-to)	29-35
Number of pages	7
Journal	Journal of the Optical Society of Korea
Volume	20
Issue number	1
DOIs	https://doi.org/10.3807/JOSK.2016.20.1.029
State	Published - Feb 2016

Keywords

Convex optimization
Dimming
Efficiency droop
Visible light communications

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abstract = "This paper deals with a design method and capacity loss of an efficient multi-level modulation scheme for dimmable visible light communications (VLC) systems that use light-emitting diodes (LEDs) with efficiency droop. To this end, the impact of such an impairment on dimmable VLC is addressed with respect to multi-level modulations based on pulse-amplitude modulation (PAM) via data-rate optimization formulation.",

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Convex optimization approach to multi-level modulation for dimmable visible light communications under LED efficiency droop

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Keywords

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