Low density parity check encoder using costas array, and...

Details Low density parity check encoder using costas array, and... Low density parity check encoder using costas array, and...

2011-05-31

2011-05-31

Alphonse, Fritz (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S793000, C714S800000

Reexamination Certificate

active

07954035

ABSTRACT:
The present invention provides an LDPC encoder, a channel encoder of a portable internet system including the LDPC encoder, and an encoding method thereof. The LDPC encoder according to the present invention generates a Costas array, shifts it, generates an analogous circulation parity check matrix having a repeated pattern from the shifted Costas array, and performs encoding by using the parity check matrix. With this LDPC encoder, complexity of encoding system may be reduced.

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patent: 10-2004-0044590 (2004-05-01), None
patent: WO 2004/047019 (2004-06-01), None
Low Complexity Encoding of Improved Regular LDPC Codes, Chae et al., 0-7803-8521—Jul. 2004 IEEE 2004.
Low complexity Encoding of Regular Low density Parity Check codes, Chae et al., 0-7803-7954—Mar. 2003 IEEE 2003.
Joint code and decoder design for implementation-oriented (3, k)-regular LDPC codes, Tong Zhang and Keshab K. Parhi, Proc. of IEEE Asilomar Conference, Nov. 2001, IEEE 2001.
Constructions and Properties of Costas Arrays, Solomon W. Golomb, fellow, IEEE and Herbert Taylor, Proc. of IEEE, vol. 72, No. 9, Sep. 1984.
Low-Density Parity-Check (LDPC) Coded OFDM Systems, Hisashi Futaki et al., 0-7803-7005—Aug. 2001 IEEE 2001.

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