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Decoding LDPC (low density parity check) code with new operators based on min* operator

  • US 7,350,130 B2
  • Filed: 12/20/2004
  • Issued: 03/25/2008
  • Est. Priority Date: 08/15/2002
  • Status: Expired due to Fees
First Claim
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1. A decoder that is operable to decode an LDPC (Low Density Parity Check) coded signal, the decoder comprising:

  • a bit node processor that is operable to;

    receive a plurality of bit metrics; and

    perform bit node processing that involves updating a plurality of edge messages with respect to a plurality of bit nodes; and

    a check node processor that is operable to perform check node processing that involves updating a plurality of edge messages with respect to a plurality of check nodes by performing min†

    (min-dagger) processing or min′

    (min-prime processing).

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