Efficient amplitude modulator and ripple canceller for visible light communication

Kumar Arulandu; J.P.M.G. Linnartz; X. Deng

doi:10.1109/GLOCOMW.2018.8644210

Efficient amplitude modulator and ripple canceller for visible light communication

Kumar Arulandu, J.P.M.G. Linnartz, X. Deng

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

2 Citations (Scopus)

1 Downloads (Pure)

Abstract

Power loss is an important design factor for Visible Light Communication (VLC). Dissipating only a few percent of the illumination power can still result into a few watts of heat generation which requires additional provisions for cooling the modulator circuit. We show that a transistor in series with LED can be used in linear operation to apply amplitude modulation which only marginally sacrifices efficiency. Yet, this requires a novel active control loop. We report its performance and frequency response for VLC modulation. We show that the modulator also effectively cancels mains ripple. Based on our experimental experience, we also propose a model to quantify the power losses and verify these for pulse amplitude modulation.

Original language	English
Title of host publication	2018 IEEE Globecom Workshops, GC Wkshps 2018 - Proceedings
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	6
ISBN (Electronic)	978-1-5386-4920-6
ISBN (Print)	978-1-5386-4921-3
DOIs	https://doi.org/10.1109/GLOCOMW.2018.8644210
Publication status	Published - 19 Feb 2019
Event	2018 IEEE Global Communications Conference (GLOBECOM 2018) - Abu Dhabi, United Arab Emirates, Abu Dhabi, United Arab Emirates Duration: 9 Dec 2018 → 13 Dec 2018

Conference

Conference	2018 IEEE Global Communications Conference (GLOBECOM 2018)
Abbreviated title	GLOBECOM 2018
Country/Territory	United Arab Emirates
City	Abu Dhabi
Period	9/12/18 → 13/12/18

Keywords

LED drivers
Li-Fi
Optical Wireless Communication
Visible Light Communication

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10.1109/GLOCOMW.2018.8644210

Cite this

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title = "Efficient amplitude modulator and ripple canceller for visible light communication",

abstract = "Power loss is an important design factor for Visible Light Communication (VLC). Dissipating only a few percent of the illumination power can still result into a few watts of heat generation which requires additional provisions for cooling the modulator circuit. We show that a transistor in series with LED can be used in linear operation to apply amplitude modulation which only marginally sacrifices efficiency. Yet, this requires a novel active control loop. We report its performance and frequency response for VLC modulation. We show that the modulator also effectively cancels mains ripple. Based on our experimental experience, we also propose a model to quantify the power losses and verify these for pulse amplitude modulation.",

keywords = "LED drivers, Li-Fi, Optical Wireless Communication, Visible Light Communication",

author = "Kumar Arulandu and J.P.M.G. Linnartz and X. Deng",

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day = "19",

doi = "10.1109/GLOCOMW.2018.8644210",

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note = "2018 IEEE Global Communications Conference (GLOBECOM 2018), GLOBECOM 2018 ; Conference date: 09-12-2018 Through 13-12-2018",

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Arulandu, K, Linnartz, JPMG & Deng, X 2019, Efficient amplitude modulator and ripple canceller for visible light communication. in 2018 IEEE Globecom Workshops, GC Wkshps 2018 - Proceedings., 8644210, Institute of Electrical and Electronics Engineers, Piscataway, 2018 IEEE Global Communications Conference (GLOBECOM 2018), Abu Dhabi, United Arab Emirates, 9/12/18. https://doi.org/10.1109/GLOCOMW.2018.8644210

Efficient amplitude modulator and ripple canceller for visible light communication. / Arulandu, Kumar; Linnartz, J.P.M.G.; Deng, X.

2018 IEEE Globecom Workshops, GC Wkshps 2018 - Proceedings. Piscataway : Institute of Electrical and Electronics Engineers, 2019. 8644210.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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T1 - Efficient amplitude modulator and ripple canceller for visible light communication

AU - Arulandu, Kumar

AU - Linnartz, J.P.M.G.

AU - Deng, X.

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Y1 - 2019/2/19

N2 - Power loss is an important design factor for Visible Light Communication (VLC). Dissipating only a few percent of the illumination power can still result into a few watts of heat generation which requires additional provisions for cooling the modulator circuit. We show that a transistor in series with LED can be used in linear operation to apply amplitude modulation which only marginally sacrifices efficiency. Yet, this requires a novel active control loop. We report its performance and frequency response for VLC modulation. We show that the modulator also effectively cancels mains ripple. Based on our experimental experience, we also propose a model to quantify the power losses and verify these for pulse amplitude modulation.

AB - Power loss is an important design factor for Visible Light Communication (VLC). Dissipating only a few percent of the illumination power can still result into a few watts of heat generation which requires additional provisions for cooling the modulator circuit. We show that a transistor in series with LED can be used in linear operation to apply amplitude modulation which only marginally sacrifices efficiency. Yet, this requires a novel active control loop. We report its performance and frequency response for VLC modulation. We show that the modulator also effectively cancels mains ripple. Based on our experimental experience, we also propose a model to quantify the power losses and verify these for pulse amplitude modulation.

KW - LED drivers

KW - Li-Fi

KW - Optical Wireless Communication

KW - Visible Light Communication

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AN - SCOPUS:85063419190

SN - 978-1-5386-4921-3

BT - 2018 IEEE Globecom Workshops, GC Wkshps 2018 - Proceedings

PB - Institute of Electrical and Electronics Engineers

CY - Piscataway

T2 - 2018 IEEE Global Communications Conference (GLOBECOM 2018)

Y2 - 9 December 2018 through 13 December 2018

ER -

Efficient amplitude modulator and ripple canceller for visible light communication

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