On the complexity of decoding Goppa codes (Corresp.)

  • Authors:
  • D. Sarwate

  • Affiliations:
  • -

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

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Abstract

It is shown that i) erasures-and-errors decoding of Goppa codes can be done usingO(n log^{2} n)arithmetic operations, ii) long primitive binary Bose-Chaudhuri-Hocquenghem (BCH) codes can be decoded usingO(n log n)arithmetic operations, and iii) Justesen's asymptotically good codes can be decoded usingO(n^{2})bit operations. These results are based on the application of efficient computational techniques to the decoding algorithms recently discovered by Sugiyama, Kasahara, Hirasawa, and Namekawa.