Path integral approach to nondispersive optical fiber communication channel

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Abstract

In the present paper we summarize the methods and results of calculations for the theoretical informational quantities obtained in our works for the nondispersive optical fiber channel. We considered two models: the per-sample model and the model where the input signal depends on time. For these models we found the approach for the calculation of the mutual information exactly in the nonlinearity parameter but for the large signal-to-noise power ratio. Using this approach for the per-sample model we found the lower bound of the channel capacity in the intermediate power range.

Original languageEnglish
Article number607
Number of pages30
JournalEntropy
Volume22
Issue number6
DOIs
Publication statusPublished - 1 Jun 2020

Keywords

  • Channel capacity
  • Nonlinear optical fiber channel with zero dispersion
  • Path integral formalism
  • path integral formalism
  • CAPACITY
  • LIMITS
  • KERR NONLINEARITY
  • nonlinear optical fiber channel with zero dispersion
  • channel capacity
  • NOISE

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