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

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
Publication status	Published - 2016 Feb
Externally published	Yes

Keywords

Convex optimization
Dimming
Efficiency droop
Visible light communications

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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

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.",

keywords = "Convex optimization, Dimming, Efficiency droop, Visible light communications",

author = "Lee, {Sang Hyun} and Park, {Il Kyu} and Kwon, {Jae Kyun}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. NRF-2015R1C1A1A01052529 and No. NRF-2014R1A1A1006082). This work was also supported by the 2013 Yeungnam University Research Grant. Publisher Copyright: {\textcopyright} 2016, Optical Society of Korea. All rights reserved. Copyright: Copyright 2016 Elsevier B.V., All rights reserved.",

year = "2016",

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doi = "10.3807/JOSK.2016.20.1.029",

language = "English",

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PY - 2016/2

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N2 - 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.

AB - 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

Abstract

Keywords

ASJC Scopus subject areas

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