Method of converting parity check matrix for low density...

Details Method of converting parity check matrix for low density... Method of converting parity check matrix for low density...

2008-04-22

2008-04-22

Lamarre, Guy J. (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S800000

Reexamination Certificate

active

11020017

ABSTRACT:
A method of converting a parity check matrix for low density parity check coding comprising moving rows and columns of the parity check matrix such that the parity check matrix includes a lower triangular submatrix. A calculation load for creating parity information can be reduced by using the converted parity check matrix including the lower triangular submatrix.

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David J.C. MacKay, “Good Error-Correcting Codes Based on Very Sparse Matrices”,IEEE Transactions On Information Theory,IEEE Inc. New York, vol. 45, No. 2, Mar. 1999, pp. 399-431.
T.J. Richardson et al., “Efficient Encoding of Low-Desity Parity-Check Codes”,IEEE Transactions On Information Theory,IEEE Inc., New York, vol. 47, No. 2, Feb. 2001, pp. 638-656.
Richardson, Thomas J. “Efficient Encoding of Low-Density Parity-Check Codes,” IEEE Transactions on Information Theory, vol. 47, No. 2, Feb. 2001, pp. 638-656.
David J. C. MacKay, “Good Error-Correcting Codes Based on Very Sparse Matrices”,IEEE Transactions on Information Theory,vol. 45, No. 2, Mar. 1999, pp. 399-431.

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