• DocumentCode
    1388030
  • Title

    Trellis codes for (1,k) E2PR4ML with squared distance 18

  • Author

    McEwen, Peter A. ; Wolf, Jack K.

  • Author_Institution
    Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA
  • Volume
    32
  • Issue
    5
  • fYear
    1996
  • fDate
    9/1/1996 12:00:00 AM
  • Firstpage
    3995
  • Lastpage
    3997
  • Abstract
    Finite truncation depth codes are obtained using periodically pruned module N trelises. One approach uses a runlength limited (d,k)=(1,7) code with rate R=2/3 as the underlying code. Another approach which results in a lower complexity detector trellis uses a rate R=3/5 sliding-block code that prohibits NRZI “10001” and adheres to a (d,k)=(1,8) constraint. The design of the module N trellis is described, and sufficient conditions for finite truncation depth are developed and applied to obtain several codes
  • Keywords
    block codes; maximum likelihood detection; partial response channels; runlength codes; trellis codes; (1,k) E2PR4ML; finite truncation depth; module N trellis; runlength limited code; sliding-block code; squared distance; trellis code; Convolutional codes; Euclidean distance; Event detection; Gas detectors; Optical signal processing; Tail;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.539242
  • Filename
    539242