Decoding Hermitian Codes with Sudan's Algorithm

  • Authors:
  • Tom Høholdt;R. Refslund Nielsen

  • Affiliations:
  • -;-

  • Venue:
  • AAECC-13 Proceedings of the 13th International Symposium on Applied Algebra, Algebraic Algorithms and Error-Correcting Codes
  • Year:
  • 1999

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Abstract

We present an efficient implementation of Sudan's algorithm for list decoding Hermitian codes beyond half the minimum distance. The main ingredients are an explicit method to calculate so-called increasing zero bases, an efficient interpolation algorithm for finding the Q- polynomial, and a reduction of the problemof factoring the Q-polynomial to the problem of factoring a univariate polynomial over a large finite field.