Method of encoding and decoding adaptive to variable code...

Details Method of encoding and decoding adaptive to variable code... Method of encoding and decoding adaptive to variable code...

2011-04-19

2011-04-19

Lamarre, Guy J (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error/fault detection technique

C714S755000, C714S786000

Reexamination Certificate

active

07930622

ABSTRACT:
A variable code rate adaptive encoding/decoding method using LDDC code is disclosed, in which an input source data is encoded using the LDPC (low density parity check) code defined by a first parity check matrix configured with a plurality of submatrices. The present invention includes the steps of generating a second parity check matrix corresponding to a code rate by reducing a portion of a plurality of submatrices configuring a first parity check matrix according to the code rate to be applied to encoding an input source data and encoding the input source data using the second parity check matrix.

REFERENCES:
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patent: 2005/0246606 (2005-11-01), Cameron et al.
patent: 1189019 (1998-07-01), None
patent: 1 596 501 (2005-11-01), None
A. Dholakia et al., “Rate-Compatible Low-Density Parity-Check Codes for Digital Subscriber Lines,” IEEE International Conference on Communications, vol. 1, pp. 415-419, Jul. 2004.
P. Joo et al., “LDPC Coding for OFDMA PHY,” IEEE 802.16 Broadband Wireless Access Working Group, IEEE C802.16d-04/86r1, May 2004.
M. R. Yazdani et al., “On Construction of Rate-Compatible Low-Density Parity-Check Codes,” IEEE Communications Letters, vol. 8, No. 3, pp. 159-161, Mar. 2004.
Jacobsen, E., et al., “Draft Text for LDPC Coding Scheme for OFDMA,” IEEE 802.16 Broadband Wireless Access Working Group, IEEE C802.16d-04/82, Apr. 26, 2004.

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