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COMPACT DECODING OF PUNCTURED BLOCK CODES

  • US 20110022922A1
  • Filed: 07/21/2009
  • Published: 01/27/2011
  • Est. Priority Date: 07/21/2009
  • Status: Active Grant
First Claim
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1. A method of porting k input bits, comprising:

  • (a) encoding the input bits according to a first code with which is associated a parity check matrix H that has m rows and n=m+k columns, thereby producing a codeword of n bits;

    (b) puncturing the codeword, thereby providing a punctured codeword of n′

    <

    n bits;

    (c) exporting the punctured codeword to a corrupting medium;

    (d) importing a representation of the punctured codeword from the corrupting medium;

    (e) deriving, by merging selected rows of H, a matrix H′

    that has m′

    =m−

    (n−

    n′

    ) rows and n′

    columns; and

    (f) using H′

    to decode the representation of the punctured codeword.

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