Performance and Complexity Analysis of Bi-Directional Recurrent Neural Network Models Versus Volterra Nonlinear Equalizers in Digital Coherent Systems
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2021.3092415
Abstract: We investigate the complexity and performance of recurrent neural network (RNN) models as post-processing units for the compensation of fibre nonlinearities in digital coherent systems carrying polarization multiplexed 16-QAM and 32-QAM signals. We evaluate three… read more here.
Keywords: neural network; performance; digital coherent; coherent systems ... See more keywords
Joint OSNR monitoring and modulation format identification in digital coherent receivers using deep neural networks.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.017767
Abstract: We experimentally demonstrate the use of deep neural networks (DNNs) in combination with signals' amplitude histograms (AHs) for simultaneous optical signal-to-noise ratio (OSNR) monitoring and modulation format identification (MFI) in digital coherent receivers. The proposed… read more here.
Keywords: osnr monitoring; modulation; digital coherent; modulation format ... See more keywords
Observation of guided acoustic-wave Brillouin scattering noise and its compensation in digital coherent optical fiber transmission.
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DOI: 10.1364/oe.26.009165
Abstract: We describe the first observation of guided acoustic-wave Brillouin scattering (GAWBS) phase noise in a digital coherent optical fiber transmission. GAWBS noise, which is a forward lightwave generated by thermally excited vibration modes in a… read more here.
Keywords: transmission; digital coherent; fiber; observation guided ... See more keywords
Cost-effective digital coherent short-reach transmission system with D8QAM and low-complexity DSP.
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DOI: 10.1364/oe.422456
Abstract: We propose a cost-effective digital coherent scheme with low-complexity digital signal processing (DSP) for short-reach optical interconnection. Differential 8-ary quadrature amplitude modulation (D8QAM) with 1-decision-aided adaptive differential decoding bypasses carrier recovery and enables cycle-slip-free operation.… read more here.
Keywords: low complexity; digital coherent; cost effective; complexity ... See more keywords