• DocumentCode
    1793239
  • Title

    Achievable rates for four-dimensional coded modulation with a bit-wise receiver

  • Author

    Alvarado, Alex ; Agrell, Erik

  • Author_Institution
    Dept. of Eng., Univ. of Cambridge, Cambridge, UK
  • fYear
    2014
  • fDate
    9-13 March 2014
  • Firstpage
    1
  • Lastpage
    3
  • Abstract
    We study achievable rates for four-dimensional (4D) constellations for spectrally efficient optical systems based on a (suboptimal) bit-wise receiver. We show that PM-QPSK outperforms the best 4D constellation designed for uncoded transmission by approximately 1 dB. Numerical results using LDPC codes validate the analysis.
  • Keywords
    modulation coding; optical fibre networks; optical receivers; parity check codes; quadrature phase shift keying; 4D constellations; LDPC codes; PM-QPSK; four-dimensional coded modulation; four-dimensional constellations; spectrally efficient optical systems; suboptimal bit-wise receiver; uncoded transmission; Decoding; Forward error correction; Optical modulation; Optical receivers; Signal to noise ratio;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Optical Fiber Communications Conference and Exhibition (OFC), 2014
  • Conference_Location
    San Francisco, CA
  • Print_ISBN
    978-1-5575-2994-7
  • Type

    conf

  • DOI
    10.1364/OFC.2014.M2C.1
  • Filename
    6886524