Spectral efficient and high performance LiFi color dimming

Trang Nguyen; Mohamed Sufyan Islim; Chen Cheng; Harald Haas

doi:10.1109/VTC2021-Fall52928.2021.9625392

Spectral efficient and high performance LiFi color dimming

Trang Nguyen
, Mohamed Sufyan Islim
, Chen Cheng
, Harald Haas

Electronic And Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

1 Citation (Scopus)

Abstract

This paper presents a color dimming (CD) method for Light Fidelity (LiFi), enabling the ability to change the color of a light-emitting-diode (LED) and adjust the brightness of the light. The proposed CD scheme targets both high spectral efficiency and high signal-to-noise ratio (SNR). In order to achieve a high spectral efficiency, a superposition modulation scheme called augmented spectral efficiency discrete multi-tone (ASE-DMT) is used with multi-layer modulation and iterative detection. In order to achieve a high SNR, different modulation layers of ASE-DMT are loaded onto different LEDs. This is called a multi-layer multi-output modulation (MLMO) scheme. The proposed MLMO scheme supports single photo diode (PD) demodulation, thus reducing the receiver complexity. Results show that red/green/blue channels can adjust their brightness levels independently within a brightness range of 16 % to 84 % to produce a mixed color. Within the operating color plane, the proposed MLMO ASE-DMT provides a consistently high SNR of up to 33 dB, which is 8.3 dB higher than the typical ASE-DMT with multi-layer single-output modulation (MLSO).

Original language	English
Title of host publication	2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall)
Place of Publication	Piscataway, NJ.
Publisher	IEEE
ISBN (Electronic)	9781665413688
ISBN (Print)	9781665413695
DOIs	https://doi.org/10.1109/VTC2021-Fall52928.2021.9625392
Publication status	Published - 27 Sept 2021
Event	94th IEEE Vehicular Technology Conference, VTC 2021-Fall - Virtual, Online, United States Duration: 27 Sept 2021 → 30 Sept 2021

Publication series

Name	IEEE Vehicular Technology Conference
Volume	2021-September
ISSN (Print)	1550-2252

Conference

Conference	94th IEEE Vehicular Technology Conference, VTC 2021-Fall
Country/Territory	United States
City	Virtual, Online
Period	27/09/21 → 30/09/21

Funding

Harald Haas acknowledges the financial support from the Wolfson Foundation and the Royal Society. All authors acknowledge the financial support from the Engineering and Physical Sciences Research Council (EPSRC) under Established Career Fellowship grant EP/R007101/1.

Keywords

ASE-DMT
brightness dimming
Color dimming
LiFi
ML20
MLMO
multi-layer multi-output

Access to Document

10.1109/VTC2021-Fall52928.2021.9625392

Cite this

@inproceedings{8ecd7c566af641b7add19e6fbdbd4718,

title = "Spectral efficient and high performance LiFi color dimming",

abstract = "This paper presents a color dimming (CD) method for Light Fidelity (LiFi), enabling the ability to change the color of a light-emitting-diode (LED) and adjust the brightness of the light. The proposed CD scheme targets both high spectral efficiency and high signal-to-noise ratio (SNR). In order to achieve a high spectral efficiency, a superposition modulation scheme called augmented spectral efficiency discrete multi-tone (ASE-DMT) is used with multi-layer modulation and iterative detection. In order to achieve a high SNR, different modulation layers of ASE-DMT are loaded onto different LEDs. This is called a multi-layer multi-output modulation (MLMO) scheme. The proposed MLMO scheme supports single photo diode (PD) demodulation, thus reducing the receiver complexity. Results show that red/green/blue channels can adjust their brightness levels independently within a brightness range of 16 \% to 84 \% to produce a mixed color. Within the operating color plane, the proposed MLMO ASE-DMT provides a consistently high SNR of up to 33 dB, which is 8.3 dB higher than the typical ASE-DMT with multi-layer single-output modulation (MLSO). ",

keywords = "ASE-DMT, brightness dimming, Color dimming, LiFi, ML20, MLMO, multi-layer multi-output",

author = "Trang Nguyen and Islim, \{Mohamed Sufyan\} and Chen Cheng and Harald Haas",

year = "2021",

month = sep,

day = "27",

doi = "10.1109/VTC2021-Fall52928.2021.9625392",

language = "English",

isbn = "9781665413695",

series = "IEEE Vehicular Technology Conference",

publisher = "IEEE",

booktitle = "2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall)",

note = "94th IEEE Vehicular Technology Conference, VTC 2021-Fall ; Conference date: 27-09-2021 Through 30-09-2021",

}

Nguyen, T, Islim, MS, Cheng, C & Haas, H 2021, Spectral efficient and high performance LiFi color dimming. in 2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall). IEEE Vehicular Technology Conference, vol. 2021-September, IEEE, Piscataway, NJ., 94th IEEE Vehicular Technology Conference, VTC 2021-Fall, Virtual, Online, United States, 27/09/21. https://doi.org/10.1109/VTC2021-Fall52928.2021.9625392

TY - GEN

T1 - Spectral efficient and high performance LiFi color dimming

AU - Nguyen, Trang

AU - Islim, Mohamed Sufyan

AU - Cheng, Chen

AU - Haas, Harald

PY - 2021/9/27

Y1 - 2021/9/27

N2 - This paper presents a color dimming (CD) method for Light Fidelity (LiFi), enabling the ability to change the color of a light-emitting-diode (LED) and adjust the brightness of the light. The proposed CD scheme targets both high spectral efficiency and high signal-to-noise ratio (SNR). In order to achieve a high spectral efficiency, a superposition modulation scheme called augmented spectral efficiency discrete multi-tone (ASE-DMT) is used with multi-layer modulation and iterative detection. In order to achieve a high SNR, different modulation layers of ASE-DMT are loaded onto different LEDs. This is called a multi-layer multi-output modulation (MLMO) scheme. The proposed MLMO scheme supports single photo diode (PD) demodulation, thus reducing the receiver complexity. Results show that red/green/blue channels can adjust their brightness levels independently within a brightness range of 16 % to 84 % to produce a mixed color. Within the operating color plane, the proposed MLMO ASE-DMT provides a consistently high SNR of up to 33 dB, which is 8.3 dB higher than the typical ASE-DMT with multi-layer single-output modulation (MLSO).

AB - This paper presents a color dimming (CD) method for Light Fidelity (LiFi), enabling the ability to change the color of a light-emitting-diode (LED) and adjust the brightness of the light. The proposed CD scheme targets both high spectral efficiency and high signal-to-noise ratio (SNR). In order to achieve a high spectral efficiency, a superposition modulation scheme called augmented spectral efficiency discrete multi-tone (ASE-DMT) is used with multi-layer modulation and iterative detection. In order to achieve a high SNR, different modulation layers of ASE-DMT are loaded onto different LEDs. This is called a multi-layer multi-output modulation (MLMO) scheme. The proposed MLMO scheme supports single photo diode (PD) demodulation, thus reducing the receiver complexity. Results show that red/green/blue channels can adjust their brightness levels independently within a brightness range of 16 % to 84 % to produce a mixed color. Within the operating color plane, the proposed MLMO ASE-DMT provides a consistently high SNR of up to 33 dB, which is 8.3 dB higher than the typical ASE-DMT with multi-layer single-output modulation (MLSO).

KW - ASE-DMT

KW - brightness dimming

KW - Color dimming

KW - LiFi

KW - ML20

KW - MLMO

KW - multi-layer multi-output

U2 - 10.1109/VTC2021-Fall52928.2021.9625392

DO - 10.1109/VTC2021-Fall52928.2021.9625392

M3 - Conference contribution book

AN - SCOPUS:85123007352

SN - 9781665413695

T3 - IEEE Vehicular Technology Conference

BT - 2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall)

PB - IEEE

CY - Piscataway, NJ.

T2 - 94th IEEE Vehicular Technology Conference, VTC 2021-Fall

Y2 - 27 September 2021 through 30 September 2021

ER -

Spectral efficient and high performance LiFi color dimming

Abstract

Publication series

Conference

Funding

Keywords

Access to Document

Fingerprint

Cite this