A nonlinear electrical equalizer with decision feedback for OOK optical communication systems

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Abstract

In this paper we introduce a nonlinear equalizer using the Radial Basis Function (RBF) network with decision feedback equalizer (DFE) for electronic dispersion compensation in optical communication systems with on-off-keying and a direct detection receiver. The RBF method introduces a non-linear equalization technique suitable for optical communication direct detection systems that include nonlinear transformation at the photodetector. A bit error rate performance comparison shows that the RBF with DFE out performs the RBF without DFE and achieves similar results provided by maximum likelihood sequence estimator.

Original languageEnglish
Pages (from-to)2002-2006
Number of pages5
JournalIEEE Transactions on Communications
Volume56
Issue number12
DOIs
StatePublished - 1 Dec 2008

Keywords

  • DFE
  • Electrical dispersion compensation
  • Optical fiber communication system
  • RBF

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