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OFDM based visible light communication with probabilistic shaping

Published: 21 September 2020 Publication History

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.

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  • (2022)WDM Based 10.8 Gbps Visible Light Communication With Probabilistic ShapingJournal of Lightwave Technology10.1109/JLT.2022.317557540:15(5062-5069)Online publication date: 1-Aug-2022
  • (2021)Single LED Gbps Visible Light Communication with Probabilistic Shaping2021 IEEE Global Communications Conference (GLOBECOM)10.1109/GLOBECOM46510.2021.9685753(1-6)Online publication date: 7-Dec-2021

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  1. OFDM based visible light communication with probabilistic shaping

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    cover image ACM Conferences
    LIOT '20: Proceedings of the Workshop on Light Up the IoT
    September 2020
    62 pages
    ISBN:9781450380997
    DOI:10.1145/3412449
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Published: 21 September 2020

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    Author Tags

    1. OFDM
    2. average symbol energy
    3. lifi
    4. probabilistic shaping
    5. symbol error ratio
    6. visible light communication

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    • (2022)WDM Based 10.8 Gbps Visible Light Communication With Probabilistic ShapingJournal of Lightwave Technology10.1109/JLT.2022.317557540:15(5062-5069)Online publication date: 1-Aug-2022
    • (2021)Single LED Gbps Visible Light Communication with Probabilistic Shaping2021 IEEE Global Communications Conference (GLOBECOM)10.1109/GLOBECOM46510.2021.9685753(1-6)Online publication date: 7-Dec-2021

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