• DocumentCode
    1780379
  • Title

    Non-binary LDPC codes with large alphabet size

  • Author

    Tazoe, Koji ; Kasai, Keisuke ; Sakaniwa, Kohichi

  • Author_Institution
    Dept. of Commun. & Comput. Eng., Tokyo Instn. of Technol., Tokyo, Japan
  • fYear
    2014
  • fDate
    June 29 2014-July 4 2014
  • Firstpage
    2445
  • Lastpage
    2448
  • Abstract
    We study LDPC codes for the channel with input x ∈ Fqm and output y = x + z ∈ Fqm. The aim of this paper is to evaluate decoding performance of qm-ary non-binary LDPC codes for large m. We give density evolution and decoding performance evaluation for regular non-binary LDPC codes and spatially-coupled (SC) codes. We show the regular codes do not achieve the capacity of the channel while SC codes do.
  • Keywords
    channel coding; decoding; formal languages; parity check codes; alphabet size; decoding performance evaluation; density evolution; low-density parity-check codes; qm-ary nonbinary LDPC codes; regular nonbinary LDPC codes; spatially-coupled codes; Decoding; Encoding; Frequency modulation; Iterative decoding; Joining processes;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Information Theory (ISIT), 2014 IEEE International Symposium on
  • Conference_Location
    Honolulu, HI
  • Type

    conf

  • DOI
    10.1109/ISIT.2014.6875273
  • Filename
    6875273
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1780379