Relationships between different error-correcting capabilities of a code

  • Authors:
  • S. Konstantinidis

  • Affiliations:
  • Dept. of Math. & Comput. Sci., St. Mary's Univ., Halifax, NS

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

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Abstract

SID channels are discrete channels represented by expressions that involve combinations of the error types substitution, insertion, and deletion. In this correspondence, a simple distance is defined that generalizes the Hamming and Levenshtein distances. For a certain class of SID channels, the distance is used to obtain a necessary and sufficient condition for the error-correcting capability that corresponds to the channel in question. Moreover, it is shown that for many SID channels whose expressions include the insertion type, their error-correcting codes coincide with those for SID channels whose expressions result by replacing the insertion type with the deletion type