Novel post-distortion to mitigate LED nonlinearity in high-speed visible light communications

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

doi:10.1109/GLOCOMW.2018.8644284

Novel post-distortion to mitigate LED nonlinearity in high-speed visible light communications

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

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

4 Citations (Scopus)

Abstract

This paper addresses dynamic nonlinear effects in the response of typical illumination Light Emitting Diodes (LEDs) to increase the reliability and data rate in Visible Light Communication (VLC) systems. These power LEDs have a limited bandwidth of only several MHz. To conceive a practical receiver, we describe the LED transient response by a nonlinear dynamic differential equation from the physical mechanisms in the Quantum Well (QW) of Double Hetero-structured (DH) LEDs. It includes the transient nonlinear relation between the input current and injection electron concentration, as governed by the dynamic rate equation. Also, we consider the static nonlinear (typically quadratic) relation between the injection electron concentration and output optical power is described by a square operator. Further we consider the static nonlinear relation between the injection current and output optical power, caused by the efficiency droop. We propose a novel post-distorter to overcome LED nonlinearities for high-speed Pulse Amplitude Modulation (PAM)-4 systems. Its performance is validated with measurements of a commercial blue LED.

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)	9781538649206
DOIs	https://doi.org/10.1109/GLOCOMW.2018.8644284
Publication status	Published - 19 Feb 2019
Event	2018 IEEE Global Communications Conference (GLOBECOM 2018) - 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

bandwidth
communication
data rate
equalization
illumination
LED
nonlinearity
VLC

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10.1109/GLOCOMW.2018.8644284

Cite this

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title = "Novel post-distortion to mitigate LED nonlinearity in high-speed visible light communications",

abstract = "This paper addresses dynamic nonlinear effects in the response of typical illumination Light Emitting Diodes (LEDs) to increase the reliability and data rate in Visible Light Communication (VLC) systems. These power LEDs have a limited bandwidth of only several MHz. To conceive a practical receiver, we describe the LED transient response by a nonlinear dynamic differential equation from the physical mechanisms in the Quantum Well (QW) of Double Hetero-structured (DH) LEDs. It includes the transient nonlinear relation between the input current and injection electron concentration, as governed by the dynamic rate equation. Also, we consider the static nonlinear (typically quadratic) relation between the injection electron concentration and output optical power is described by a square operator. Further we consider the static nonlinear relation between the injection current and output optical power, caused by the efficiency droop. We propose a novel post-distorter to overcome LED nonlinearities for high-speed Pulse Amplitude Modulation (PAM)-4 systems. Its performance is validated with measurements of a commercial blue LED.",

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Deng, X , Mardanikorani, S, Arulandu, K & Linnartz, JPMG 2019, Novel post-distortion to mitigate LED nonlinearity in high-speed visible light communications. in 2018 IEEE Globecom Workshops, GC Wkshps 2018 - Proceedings., 8644284, 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.2018.8644284

Novel post-distortion to mitigate LED nonlinearity in high-speed visible light communications. / Deng, X.; Mardanikorani, S.; Arulandu, Kumar; Linnartz, J.P.M.G.

2018 IEEE Globecom Workshops, GC Wkshps 2018 - Proceedings. Piscataway : Institute of Electrical and Electronics Engineers, 2019. 8644284.

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

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N2 - This paper addresses dynamic nonlinear effects in the response of typical illumination Light Emitting Diodes (LEDs) to increase the reliability and data rate in Visible Light Communication (VLC) systems. These power LEDs have a limited bandwidth of only several MHz. To conceive a practical receiver, we describe the LED transient response by a nonlinear dynamic differential equation from the physical mechanisms in the Quantum Well (QW) of Double Hetero-structured (DH) LEDs. It includes the transient nonlinear relation between the input current and injection electron concentration, as governed by the dynamic rate equation. Also, we consider the static nonlinear (typically quadratic) relation between the injection electron concentration and output optical power is described by a square operator. Further we consider the static nonlinear relation between the injection current and output optical power, caused by the efficiency droop. We propose a novel post-distorter to overcome LED nonlinearities for high-speed Pulse Amplitude Modulation (PAM)-4 systems. Its performance is validated with measurements of a commercial blue LED.

AB - This paper addresses dynamic nonlinear effects in the response of typical illumination Light Emitting Diodes (LEDs) to increase the reliability and data rate in Visible Light Communication (VLC) systems. These power LEDs have a limited bandwidth of only several MHz. To conceive a practical receiver, we describe the LED transient response by a nonlinear dynamic differential equation from the physical mechanisms in the Quantum Well (QW) of Double Hetero-structured (DH) LEDs. It includes the transient nonlinear relation between the input current and injection electron concentration, as governed by the dynamic rate equation. Also, we consider the static nonlinear (typically quadratic) relation between the injection electron concentration and output optical power is described by a square operator. Further we consider the static nonlinear relation between the injection current and output optical power, caused by the efficiency droop. We propose a novel post-distorter to overcome LED nonlinearities for high-speed Pulse Amplitude Modulation (PAM)-4 systems. Its performance is validated with measurements of a commercial blue LED.

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KW - data rate

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Novel post-distortion to mitigate LED nonlinearity in high-speed visible light communications

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