Method of encoding and decoding using low density parity...

Details Method of encoding and decoding using low density parity... Method of encoding and decoding using low density parity...

2011-08-02

2011-08-02

Baderman, Scott T (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

Reexamination Certificate

active

07992066

ABSTRACT:
A method of encoding and decoding using an LDPC code is disclosed, by which encoding and decoding performance can be enhanced and which can be effectively applied to a communication system employing a variable data rate. In encoding or decoding an input data using a parity check matrix H, the present invention is characterized in that the parity check matrix H has a configuration of H=[HdI Hp] (H is (n−k)×n dimensional, k is a bit number of the input data, and n is a bit number of a codeword), wherein the parity check matrix H includes a first part having a column weight of wc and a second part having a column weight of Wc+Wa(Wa/Wc≠0).

REFERENCES:
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patent: 1460766 (2004-09-01), None
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Classon, B., et al., “Modified LDPC Matrix Providing Improved Performance,” IEEE 802.16 Broadband Wireless Access Working Group, Doc. IEEE C802.16e-04/101r1, May 15, 2004.

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