Sensitivity gains by mismatched probabilistic shaping for optical communication systems

T. Fehenberger, D. Lavery, R. Maher, A. Alvarado, P. Bayvel, N. Hanik

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69 Citaten (Scopus)
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Samenvatting

Probabilistic shaping of quadrature amplitude modulation (QAM) is used to enhance the sensitivity of an optical communication system. Sensitivity gains of 0.43 and 0.8 dB are demonstrated in back-to-back experiments by the shaping of 16QAM and 64QAM, respectively. Furthermore, numerical simulations are used to prove the robustness of probabilistic shaping to a mismatch between the constellation used and the signal-to-noise ratio (SNR) of the channel. It is found that, accepting a 0.1-dB SNR penalty, only four shaping distributions are required to support these gains for 64QAM.
Originele taal-2Engels
Pagina's (van-tot)786-789
Aantal pagina's4
TijdschriftIEEE Photonics Technology Letters
Volume28
Nummer van het tijdschrift7
DOI's
StatusGepubliceerd - 1 apr 2016

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