• DocumentCode
    915472
  • Title

    Convolutional codes over GF(4) for 4-ary distance-invariant CPFSK signalling

  • Author

    Ugrelidze, N.A. ; Shavgulidze, S.A. ; Asanidze, 1.G.

  • Author_Institution
    Inst. of Commun., Georgian Tech. Univ., Tbilisi, Georgia
  • Volume
    29
  • Issue
    12
  • fYear
    1993
  • fDate
    6/10/1993 12:00:00 AM
  • Firstpage
    1104
  • Abstract
    Combinations of new convolutional codes over GF(4) and 4-ary distance-invariant CPFSK modulation are considered. The best codes that ensure maximum free Euclidean distance in signal space are given in a Table. The convolutional codes are termed, ´concordant´ because their trellis diagram topologically coincides with the joint signal-code trellis diagram.
  • Keywords
    convolutional codes; frequency shift keying; telecommunication signalling; trellis codes; 4-ary distance-invariant CPFSK signalling; CPFSK modulation; GF(4); concordant codes; convolutional codes; joint signal-code trellis diagram; maximum free Euclidean distance; signal space; trellis diagram;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19930736
  • Filename
    220832