The V.42bis Standard for Data-Compressing Modems

  • Authors:
  • Clark Thomborson

  • Affiliations:
  • -

  • Venue:
  • IEEE Micro
  • Year:
  • 1992

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Abstract

The CCITT V.42bis standard for data-compressing modems, a conservative and economically implementable scheme, is discussed from algorithmic, experimental, practical, and marketing standpoints. It is shown that 4.2bis compresses text about as well as the Lempel-Ziv-Welch algorithm of the Berkeley Unix Compress utility. Other Ziv-Lempel variants are discussed briefly.