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APPARATUS AND METHOD FOR CHANNEL ENCODING/DECODING IN COMMUNICATION SYSTEM USING VARIABLE-LENGTH LDPC CODES

  • US 20090070652A1
  • Filed: 09/10/2008
  • Published: 03/12/2009
  • Est. Priority Date: 09/10/2007
  • Status: Active Grant
First Claim
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1. A method of encoding a structured variable-length Low-Density Parity Check (LDPC) code, the method comprising:

  • detecting information on a pre-stored first parity check matrix;

    identifying a block length of a LDPC code;

    determining a grouping size for an information word of a second parity check matrix;

    configuring submatrices corresponding to the information word of the second parity check matrix from the first parity check matrix in correspondence with the grouping size;

    configuring submatrices corresponding to a parity of the second parity check matrix; and

    performing encoding based on one of the first parity check matrix and the second parity check matrix.

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