Extending a Nonlinear SNR Estimator to Include Shaping Distribution Identification for Probabilistically Shaped 64-QAM Signals
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DOI: 10.1109/jlt.2019.2913595
Abstract: An estimation method for the nonlinear signal-to-noise ratio (SNR) is extended to simultaneously identify the shaping distribution for rate-adaptive probabilistically shaped (PS) 64-ary quadrature amplitude modulation (QAM) constellations. An artificial neural network (ANN) is trained… read more here.
Keywords: shaping distributions; probabilistically shaped; shaping distribution; identification ... See more keywords