• DocumentCode
    1505067
  • Title

    Minimum distance lower bounds for girth-constrained RA code ensembles

  • Author

    Chen, Weigang ; Yin, Liuguo ; Lu, Jianhua

  • Author_Institution
    Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
  • Volume
    58
  • Issue
    6
  • fYear
    2010
  • fDate
    6/1/2010 12:00:00 AM
  • Firstpage
    1623
  • Lastpage
    1626
  • Abstract
    Minimum distance lower bounds are derived using graphical enumeration and integer programming for girth-constrained repeat-accumulate (RA) code ensembles. Moreover, the worst subgraphs in Tanner graphs leading to the minimum distance lower bounds and the probabilities they occur are analyzed.
  • Keywords
    graph theory; integer programming; parity check codes; Tanner graphs; girth-constrained RA code ensembles; graphical enumeration; integer programming; low-density parity-check codes; minimum distance lower bounds; repeat-accumulate code; subgraphs; Aerospace engineering; Communications Society; Encoding; Iterative decoding; Linear programming; NP-hard problem; Parity check codes; Repeat-accumulate codes, low-density parity check codes, minimum distance lower bounds.;
  • fLanguage
    English
  • Journal_Title
    Communications, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0090-6778
  • Type

    jour

  • DOI
    10.1109/TCOMM.2010.06.070652
  • Filename
    5474626