On expander codes

  • Authors:
  • G. Zemor

  • Affiliations:
  • Ecole Nat. Superieure des Telecommun., Paris

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

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Abstract

Sipser and Spielman (see ibid., vol.42, p.1717-22, Nov. 1996) have introduced a constructive family of asymptotically good linear error-correcting codes-expander codes-together with a simple parallel algorithm that will always remove a constant fraction of errors. We introduce a variation on their decoding algorithm that, with no extra cost in complexity, provably corrects up to 12 times more errors