Noise-predictive BCJR equalization for suppression of intrachannel nonlinearities

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

An iterative equalization scheme for suppressing intrachannel nonlinearities in high-speed optical transmission systems operating at 40 Gb/s is presented. The proposed method employs a noise-predictive filter to mitigate the colored noise due to amplified spontaneous emission noise and optical filtering. The maximum a posteriori probability symbol detection implemented as the Bahl-Cocke-Jelinek-Raviv (BCJR) algorithm is employed to suppress the intrachannel nonlinear effects. Soft decision outputs provided by the noise-predictive BCJR equalizer are processed by an iterative low-density parity-check decoder.

Original languageEnglish (US)
Pages (from-to)1317-1319
Number of pages3
JournalIEEE Photonics Technology Letters
Volume18
Issue number12
DOIs
StatePublished - Jun 15 2006

Fingerprint

Spontaneous emission
Equalizers
Light transmission
nonlinearity
retarding
decoders
spontaneous emission
parity
high speed
filters
output

Keywords

  • Bahl-Cocke-Jelinek-Raviv (BCJR) algorithm
  • Low-density parity-check (LDPC) codes
  • Noise-predictive filter
  • Optical communications

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)
  • Electronic, Optical and Magnetic Materials

Cite this

Noise-predictive BCJR equalization for suppression of intrachannel nonlinearities. / Djordjevic, Ivan B; Vasic, Bane V.

In: IEEE Photonics Technology Letters, Vol. 18, No. 12, 15.06.2006, p. 1317-1319.

Research output: Contribution to journalArticle

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