Error exponents of expander codes

  • Authors:
  • A. Barg;G. Zemor

  • Affiliations:
  • Lucent Technol. Bell Labs., Murray Hill, NJ;-

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

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Abstract

We show that expander codes attain the capacity of the binary-symmetric channel under iterative decoding. The error probability has a positive exponent for all rates between zero and the channel capacity. The decoding complexity grows linearly with the code length