Methods and systems for reduced complexity nonlinear compensation
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United States of America Patent
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Apr 19, 2016
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app pub date -
Sep 9, 2014
filing date -
Sep 9, 2013
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Abstract
Aspects of the present invention provide techniques for compensating nonlinear impairments of a signal traversing an optical communications system. A parallel array of linear convolutional filters are configured to process a selected set of samples of the signal to generate an estimate of a nonlinear interference field. The predetermined set of samples comprises a first sample and a plurality of second samples. A processor applies the estimated nonlinear interference field to the first sample to least partially compensate the nonlinear impairment.
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