A novel index modulation for dimming in LiFi systems

Trang Nguyen; Mohamed Sufyan Islim; Harald Haas

doi:10.1109/GLOBECOM42002.2020.9322251

A novel index modulation for dimming in LiFi systems

Trang Nguyen, Mohamed Sufyan Islim, Harald Haas

Electronic And Electrical Engineering

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

2 Citations (Scopus)

8 Downloads (Pure)

Abstract

This paper introduces a novel dimming method for Light Fidelity (LiFi) based on index modulation (IM). A time-domain sample-index modulation (TIM) is proposed for indexed dimming (iDim). The aim is to maintain a high communication performance measured in signal to noise ratio (SNR) and a high transmission rate for a wide light emitting diode (LED) brightness range. Direct current optical orthogonal frequency division multiplexing (DCO-OFDM) is used. The system performance is experimentally validated by an implementation on a National Instruments (NI) PXIe-1085 and NI-7966R Field Programmable Gate Array (FPGA). The proposed iDim offers a wider dimming range and an improved SNR/symbol when compared to amplitude-modulation dimming (AM dimming). In particular, the iDim system provides a SNR/symbol of 22.5 dB for all brightness levels. The lowest optical power is measured at 20 \muW which is 10 times lower than the measured limit of AM dimming. This reduces the cost of the optical power per bit. Therefore, iDim is a promising dimming method for applications targeting extremely low illumination levels.

Original language	English
Title of host publication	2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings
Place of Publication	Piscataway, NJ.
Publisher	IEEE
ISBN (Electronic)	9781728182988
DOIs	https://doi.org/10.1109/GLOBECOM42002.2020.9322251
Publication status	Published - 12 Dec 2020
Event	2020 IEEE Global Communications Conference, GLOBECOM 2020 - Virtual, Taipei, Taiwan Duration: 7 Dec 2020 → 11 Dec 2020

Publication series

Name	2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings

Conference

Conference	2020 IEEE Global Communications Conference, GLOBECOM 2020
Country/Territory	Taiwan
City	Virtual, Taipei
Period	7/12/20 → 11/12/20

Keywords

dimming
iDim
index modulation
LiFi

Access to Document

10.1109/GLOBECOM42002.2020.9322251

Nguyen-etal-GCC-2020-A-novel-index-modulation-for-dimming-lifi-systemsAccepted author manuscript, 2.83 MB

Towards 100 Gigabit Wireless Networking by Light (Go-by-Light (Ext)
Haas, H.
EPSRC (Engineering and Physical Sciences Research Council)
20/07/20 → 31/12/21
Project: Research Fellowship

Cite this

@inproceedings{c4538b2cd2c04ae59d8f1e3fec892507,

title = "A novel index modulation for dimming in LiFi systems",

abstract = "This paper introduces a novel dimming method for Light Fidelity (LiFi) based on index modulation (IM). A time-domain sample-index modulation (TIM) is proposed for indexed dimming (iDim). The aim is to maintain a high communication performance measured in signal to noise ratio (SNR) and a high transmission rate for a wide light emitting diode (LED) brightness range. Direct current optical orthogonal frequency division multiplexing (DCO-OFDM) is used. The system performance is experimentally validated by an implementation on a National Instruments (NI) PXIe-1085 and NI-7966R Field Programmable Gate Array (FPGA). The proposed iDim offers a wider dimming range and an improved SNR/symbol when compared to amplitude-modulation dimming (AM dimming). In particular, the iDim system provides a SNR/symbol of 22.5 dB for all brightness levels. The lowest optical power is measured at 20 \muW which is 10 times lower than the measured limit of AM dimming. This reduces the cost of the optical power per bit. Therefore, iDim is a promising dimming method for applications targeting extremely low illumination levels.",

keywords = "dimming, iDim, index modulation, LiFi",

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

year = "2020",

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day = "12",

doi = "10.1109/GLOBECOM42002.2020.9322251",

language = "English",

series = "2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings",

publisher = "IEEE",

booktitle = "2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings",

note = "2020 IEEE Global Communications Conference, GLOBECOM 2020 ; Conference date: 07-12-2020 Through 11-12-2020",

}

Nguyen, T, Islim, MS & Haas, H 2020, A novel index modulation for dimming in LiFi systems. in 2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings., 9322251, 2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings, IEEE, Piscataway, NJ., 2020 IEEE Global Communications Conference, GLOBECOM 2020, Virtual, Taipei, Taiwan, 7/12/20. https://doi.org/10.1109/GLOBECOM42002.2020.9322251

A novel index modulation for dimming in LiFi systems. / Nguyen, Trang; Islim, Mohamed Sufyan; Haas, Harald.

2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings. Piscataway, NJ. : IEEE, 2020. 9322251 (2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings).

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

TY - GEN

T1 - A novel index modulation for dimming in LiFi systems

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AU - Islim, Mohamed Sufyan

AU - Haas, Harald

PY - 2020/12/12

Y1 - 2020/12/12

N2 - This paper introduces a novel dimming method for Light Fidelity (LiFi) based on index modulation (IM). A time-domain sample-index modulation (TIM) is proposed for indexed dimming (iDim). The aim is to maintain a high communication performance measured in signal to noise ratio (SNR) and a high transmission rate for a wide light emitting diode (LED) brightness range. Direct current optical orthogonal frequency division multiplexing (DCO-OFDM) is used. The system performance is experimentally validated by an implementation on a National Instruments (NI) PXIe-1085 and NI-7966R Field Programmable Gate Array (FPGA). The proposed iDim offers a wider dimming range and an improved SNR/symbol when compared to amplitude-modulation dimming (AM dimming). In particular, the iDim system provides a SNR/symbol of 22.5 dB for all brightness levels. The lowest optical power is measured at 20 \muW which is 10 times lower than the measured limit of AM dimming. This reduces the cost of the optical power per bit. Therefore, iDim is a promising dimming method for applications targeting extremely low illumination levels.

AB - This paper introduces a novel dimming method for Light Fidelity (LiFi) based on index modulation (IM). A time-domain sample-index modulation (TIM) is proposed for indexed dimming (iDim). The aim is to maintain a high communication performance measured in signal to noise ratio (SNR) and a high transmission rate for a wide light emitting diode (LED) brightness range. Direct current optical orthogonal frequency division multiplexing (DCO-OFDM) is used. The system performance is experimentally validated by an implementation on a National Instruments (NI) PXIe-1085 and NI-7966R Field Programmable Gate Array (FPGA). The proposed iDim offers a wider dimming range and an improved SNR/symbol when compared to amplitude-modulation dimming (AM dimming). In particular, the iDim system provides a SNR/symbol of 22.5 dB for all brightness levels. The lowest optical power is measured at 20 \muW which is 10 times lower than the measured limit of AM dimming. This reduces the cost of the optical power per bit. Therefore, iDim is a promising dimming method for applications targeting extremely low illumination levels.

KW - dimming

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KW - index modulation

KW - LiFi

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DO - 10.1109/GLOBECOM42002.2020.9322251

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T2 - 2020 IEEE Global Communications Conference, GLOBECOM 2020

Y2 - 7 December 2020 through 11 December 2020

ER -

A novel index modulation for dimming in LiFi systems

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Keywords

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Projects

Towards 100 Gigabit Wireless Networking by Light (Go-by-Light (Ext)

Cite this