• DocumentCode
    1174604
  • Title

    There are many good periodically time-varying convolutional codes

  • Author

    Lee, P.J.

  • Author_Institution
    Bell Commun. Res., Morristown, NJ
  • Volume
    35
  • Issue
    2
  • fYear
    1989
  • fDate
    3/1/1989 12:00:00 AM
  • Firstpage
    460
  • Lastpage
    463
  • Abstract
    It is shown empirically that the number of good periodically time-varying convolutional codes increases exponentially with the period for any set of parameters. Hence, they can be used to enhance the security of cryptosystems without sacrificing error correction capability. It is shown that some periodically time-varying convolutional codes improve the free distance compared with fixed codes
  • Keywords
    error correction codes; convolutional codes; cryptosystem security; error correcting codes; error correction capability; free distance; periodic codes; periodically time varying codes; Convolutional codes; Cryptography; Decoding; Error analysis; Error correction codes; Length measurement; Power system security; Shift registers; Viterbi algorithm; Writing;
  • fLanguage
    English
  • Journal_Title
    Information Theory, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9448
  • Type

    jour

  • DOI
    10.1109/18.32142
  • Filename
    32142
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1174604