Variable-to-fixed length codes and the conservation of entropy

  • Authors:
  • S. A. Savari

  • Affiliations:
  • Comput. Principles Res. Dept., AT&T Bell Labs., Murray Hill, NJ

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 2006

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Abstract

For a large class of parsing rules, we introduce a “conservation of entropy” theorem for the output of a unifilar Markov source. Using this theorem and renewal theory, we find a procedure to generate asymptotically optimal generalized variable-to-fixed length codes