OFDM based visible light communication with probabilistic shaping

Tilahun Zerihun Gutema; Harald Haas; Wasiu O. Popoola

doi:10.1145/3412449.3412548

OFDM based visible light communication with probabilistic shaping

Tilahun Zerihun Gutema, Harald Haas, Wasiu O. Popoola

School of Engineering

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

Abstract

A visible light communication (VLC) system using probabilistically shaped orthogonal frequency multiplexed (OFDM) modulation is presented. The average symbol energy of probabilistically shaped OFDM modulation is investigated for different modulation orders of quadrature amplitude modulation (QAM) under different entropy scenarios. Furthermore, the symbol error performance of the probabilistically shaped OFDM system under additive white Gaussian noise (AWGN) channel condition is evaluated. The probabilistically shaped OFDM system outperforms the uniformly distributed in the symbol error ratio performance. For 256-QAM with an entropy of 7.84 bits, we have shown a 3 dB gain in signal-to-noise ratio (SNR) per symbol compared to uniform 256-QAM at a symbol error ratio of 10-3. This gain increases to 5.5 dB by decreasing the entropy to 6.80 bits.

Original language	English
Title of host publication	LIOT 2020 - Proceedings of the 2020 Light Up the IoT, Part of MobiCom 2020
Publisher	Association for Computing Machinery, Inc
Pages	1-5
Number of pages	5
ISBN (Electronic)	9781450380997
DOIs	https://doi.org/10.1145/3412449.3412548
Publication status	Published - 21 Sept 2020
Event	2020 Light Up the IoT, LIOT 2020 - Part of MobiCom 2020 - London, United Kingdom Duration: 21 Sept 2020 → …

Publication series

Name	LIOT 2020 - Proceedings of the 2020 Light Up the IoT, Part of MobiCom 2020

Conference

Conference	2020 Light Up the IoT, LIOT 2020 - Part of MobiCom 2020
Country/Territory	United Kingdom
City	London
Period	21/09/20 → …

Keywords / Materials (for Non-textual outputs)

Average symbol energy
Lifi
OFDM
Probabilistic shaping
Symbol error ratio
Visible light communication

Access to Document

10.1145/3412449.3412548

Cite this

@inproceedings{1ed4c79d35df4f079e5281150df3aea5,

title = "OFDM based visible light communication with probabilistic shaping",

abstract = "A visible light communication (VLC) system using probabilistically shaped orthogonal frequency multiplexed (OFDM) modulation is presented. The average symbol energy of probabilistically shaped OFDM modulation is investigated for different modulation orders of quadrature amplitude modulation (QAM) under different entropy scenarios. Furthermore, the symbol error performance of the probabilistically shaped OFDM system under additive white Gaussian noise (AWGN) channel condition is evaluated. The probabilistically shaped OFDM system outperforms the uniformly distributed in the symbol error ratio performance. For 256-QAM with an entropy of 7.84 bits, we have shown a 3 dB gain in signal-to-noise ratio (SNR) per symbol compared to uniform 256-QAM at a symbol error ratio of 10-3. This gain increases to 5.5 dB by decreasing the entropy to 6.80 bits. ",

keywords = "Average symbol energy, Lifi, OFDM, Probabilistic shaping, Symbol error ratio, Visible light communication",

author = "Gutema, {Tilahun Zerihun} and Harald Haas and Popoola, {Wasiu O.}",

year = "2020",

month = sep,

day = "21",

doi = "10.1145/3412449.3412548",

language = "English",

series = "LIOT 2020 - Proceedings of the 2020 Light Up the IoT, Part of MobiCom 2020",

publisher = "Association for Computing Machinery, Inc",

pages = "1--5",

booktitle = "LIOT 2020 - Proceedings of the 2020 Light Up the IoT, Part of MobiCom 2020",

note = "2020 Light Up the IoT, LIOT 2020 - Part of MobiCom 2020 ; Conference date: 21-09-2020",

}

Gutema, TZ, Haas, H & Popoola, WO 2020, OFDM based visible light communication with probabilistic shaping. in LIOT 2020 - Proceedings of the 2020 Light Up the IoT, Part of MobiCom 2020. LIOT 2020 - Proceedings of the 2020 Light Up the IoT, Part of MobiCom 2020, Association for Computing Machinery, Inc, pp. 1-5, 2020 Light Up the IoT, LIOT 2020 - Part of MobiCom 2020, London, United Kingdom, 21/09/20. https://doi.org/10.1145/3412449.3412548

OFDM based visible light communication with probabilistic shaping. / Gutema, Tilahun Zerihun; Haas, Harald; Popoola, Wasiu O.
LIOT 2020 - Proceedings of the 2020 Light Up the IoT, Part of MobiCom 2020. Association for Computing Machinery, Inc, 2020. p. 1-5 (LIOT 2020 - Proceedings of the 2020 Light Up the IoT, Part of MobiCom 2020).

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

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T1 - OFDM based visible light communication with probabilistic shaping

AU - Gutema, Tilahun Zerihun

AU - Haas, Harald

AU - Popoola, Wasiu O.

PY - 2020/9/21

Y1 - 2020/9/21

N2 - A visible light communication (VLC) system using probabilistically shaped orthogonal frequency multiplexed (OFDM) modulation is presented. The average symbol energy of probabilistically shaped OFDM modulation is investigated for different modulation orders of quadrature amplitude modulation (QAM) under different entropy scenarios. Furthermore, the symbol error performance of the probabilistically shaped OFDM system under additive white Gaussian noise (AWGN) channel condition is evaluated. The probabilistically shaped OFDM system outperforms the uniformly distributed in the symbol error ratio performance. For 256-QAM with an entropy of 7.84 bits, we have shown a 3 dB gain in signal-to-noise ratio (SNR) per symbol compared to uniform 256-QAM at a symbol error ratio of 10-3. This gain increases to 5.5 dB by decreasing the entropy to 6.80 bits.

AB - A visible light communication (VLC) system using probabilistically shaped orthogonal frequency multiplexed (OFDM) modulation is presented. The average symbol energy of probabilistically shaped OFDM modulation is investigated for different modulation orders of quadrature amplitude modulation (QAM) under different entropy scenarios. Furthermore, the symbol error performance of the probabilistically shaped OFDM system under additive white Gaussian noise (AWGN) channel condition is evaluated. The probabilistically shaped OFDM system outperforms the uniformly distributed in the symbol error ratio performance. For 256-QAM with an entropy of 7.84 bits, we have shown a 3 dB gain in signal-to-noise ratio (SNR) per symbol compared to uniform 256-QAM at a symbol error ratio of 10-3. This gain increases to 5.5 dB by decreasing the entropy to 6.80 bits.

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KW - Lifi

KW - OFDM

KW - Probabilistic shaping

KW - Symbol error ratio

KW - Visible light communication

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M3 - Conference contribution

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ER -

OFDM based visible light communication with probabilistic shaping

Abstract

Publication series

Conference

Keywords / Materials (for Non-textual outputs)

Access to Document

Other files and links

Fingerprint

ENLIGHTEM: European Training Network in Low-energy Visible Light IoT Systems

Cite this

OFDM based visible light communication with probabilistic shaping

Abstract

Publication series

Conference

Keywords / Materials (for Non-textual outputs)

Access to Document

Other files and links

Fingerprint

Projects

ENLIGHTEM: European Training Network in Low-energy Visible Light IoT Systems

Cite this