• DocumentCode
    3526148
  • Title

    Threshold improvement of low-density lattice codes via spatial coupling

  • Author

    Uchikawa, Hironori ; Kurkoski, Brian M. ; Kasai, Kenta ; Sakaniwa, Kohichi

  • Author_Institution
    Dept. of Commun. & Integrated Syst., Tokyo Inst. of Technol., Tokyo, Japan
  • fYear
    2012
  • fDate
    Jan. 30 2012-Feb. 2 2012
  • Firstpage
    1036
  • Lastpage
    1040
  • Abstract
    Spatially-coupled low-density lattice codes (LDLC) are constructed using protographs. By using Monte Carlo density evolution with single-Gaussian messages, we observe that the threshold of the spatially-coupled LDLC is within 0.22 dB of capacity of the unconstrained power channel. This is in contrast with a 0.5 dB noise threshold for the conventional LDLC construction.
  • Keywords
    Gaussian processes; Monte Carlo methods; channel capacity; channel coding; Monte Carlo density evolution; protographs; single-Gaussian messages; spatial coupling; spatially-coupled low-density lattice codes; threshold improvement; unconstrained power channel capacity; Couplings; Lattices; Maximum likelihood decoding; Monte Carlo methods; Noise; Parity check codes;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Computing, Networking and Communications (ICNC), 2012 International Conference on
  • Conference_Location
    Maui, HI
  • Print_ISBN
    978-1-4673-0008-7
  • Electronic_ISBN
    978-1-4673-0723-9
  • Type

    conf

  • DOI
    10.1109/ICCNC.2012.6167364
  • Filename
    6167364
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3526148