Integrated-interleaved low density parity check (LDPC) codes
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United States of America Patent
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Jul 7, 2015
Grant Date -
Jul 31, 2014
app pub date -
Jan 31, 2013
filing date -
Jan 31, 2013
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Abstract
Methods and apparatus are provided for integrated-interleaved Low Density Parity Check (LDPC) coding and decoding. Integrated-interleaved LDPC encoding is performed by obtaining at least a first data element and a second data element; systematically encoding the at least first data element using a submatrix H0 of a sparse parity check matrix H1 to obtain at least a first codeword; truncating the at least first data element to obtain at least a first truncated data element; systematically encoding the at least second data element and the at least first truncated data element using the sparse parity check matrix H1 to obtain a nested codeword; and generating a second codeword based at least in part on a combination of the first codeword and the nested codeword. Integrated-interleaved LDPC decoding is also provided.
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