• DocumentCode
    733888
  • Title

    Phase noise-robust LLR calculation with linear/bilinear transform for LDPC-coded coherent communications

  • Author

    Koike-Akino, Toshiaki ; Millar, David S. ; Kojima, Keisuke ; Parsons, Kieran

  • Author_Institution
    Mitsubishi Electr. Res. Labs. (MERL), Cambridge, MA, USA
  • fYear
    2015
  • fDate
    10-15 May 2015
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    We propose a modified log-likelihood ratio (LLR) calculation for an LDPC decoder to be robust against residual phase noise at the demodulator. The proposed scheme is based on a linear/bilinear transform offers 1 ~ 2dB gain in the presence of large phase noise.
  • Keywords
    optical communication; parity check codes; phase noise; LDPC-coded coherent communications; demodulator; linear/bilinear transform; modified log-likelihood ratio calculation; phase noise-robust LLR calculation; residual phase noise; Bit error rate; Decoding; Demodulation; Gain; Parity check codes; Phase noise; Transforms;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers and Electro-Optics (CLEO), 2015 Conference on
  • Conference_Location
    San Jose, CA
  • Type

    conf

  • Filename
    7184331
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=733888