Signal Constellation Design for Cross-Phase Modulation Dominated Channels

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In this paper, we introduce an optimal signal constellation design algorithm suitable for wavelength-division-multiplexed systems dominated by cross-phase modulation (XPM), which is called XPM-OSCD. Additionally, a corresponding demodulation scheme is also proposed in order to better compensate for the nonlinear phase errors. In this scheme, the cumulative log-likelihood function is used as the optimization criterion. The signal constellations obtained by this algorithm significantly outperform conventional quadrature amplitude modulation (QAM).

Original languageEnglish (US)
Article number7163443
JournalIEEE Photonics Journal
Issue number4
StatePublished - Aug 1 2015


  • block-interleaved coded modulation (BICM)
  • cross-phase modulation
  • demodulator
  • Microwave photonics communications
  • optimal signal constellation
  • wavelength-division multiplexing (WDM)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

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