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Mismatched Models to Lower Bound the Capacity of Dual-Polarization Optical Fiber Channels

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 نشر من قبل Francisco Javier Garcia Gomez
 تاريخ النشر 2021
  مجال البحث الهندسة المعلوماتية
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Regular perturbation is applied to the Manakov equation and motivates a generalized correlated phase-and-additive noise model for wavelength-division multiplexing over dual-polarization optical fiber channels. The model includes three hidden Gauss-Markov processes: phase noise, polarization rotation, and additive noise. Particle filtering is used to compute lower bounds on the capacity of multi-carrier communication with frequency-dependent powers and delays. A gain of 0.17 bits/s/Hz/pol in spectral efficiency or 0.8 dB in power efficiency is achieved with respect to existing models at their peak data rate. Frequency-dependent delays also increase the spectral efficiency of single-polarization channels.



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