Conference paper Open Access

OFDM Based Visible Light Communication with Probabilistic Shaping

Gutema, Tilahun Zerihun; Haas, Harald; Popoola, Wasiu


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    "description": "<p>shaped orthogonal frequency multiplexed (OFDM) modulation is presented. The average symbol energy of probabilistically shaped<br>\nOFDM modulation is investigated for different modulation orders of quadrature amplitude modulation (QAM) under different entropy<br>\nscenarios. Furthermore, the symbol error performance of the probabilistically shaped OFDM system under additive white Gaussian<br>\nnoise (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&minus;3. This gain increases to 5.5 dB by decreasing the entropy to 6.80 bits.</p>", 
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    "title": "OFDM Based Visible Light Communication with Probabilistic Shaping", 
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        "title": "European Training Network in Low-energy Visible Light IoT Systems", 
        "acronym": "ENLIGHTEM", 
        "program": "H2020", 
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        "affiliation": "The University of Edinburgh", 
        "name": "Gutema, Tilahun Zerihun"
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      {
        "affiliation": "The University of Edinburgh", 
        "name": "Haas, Harald"
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      {
        "affiliation": "The University of Edinburgh", 
        "name": "Popoola, Wasiu"
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