发明名称 |
RATE-COMPATIBLE LOW-DENSITY PARITY-CHECK (LDPC) CODES |
摘要 |
Method and apparatus for generating codewords with variable length and redundancy from a single Low-Density Parity-Check (LDPC) code with variable length input words. A mother code for encoding data words is generated based on a parity-check matrix, wherein the mother code is adjusted to reflect the size of the data word to be encoded. A generator matrix applies the mother code to data words to produce codewords for transmission. In one embodiment, a reduction criteria is determined and the size of the generator matrix reduce d in response. The corresponding parity-check matrix is applied at the receive r for decoding the received codeword.
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申请公布号 |
CA2505057(A1) |
申请公布日期 |
2004.06.03 |
申请号 |
CA20032505057 |
申请日期 |
2003.11.12 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
WALTON, JAY ROD;SINDHUSHAYANA, NAGABHUSHANA;BJERKE, BJORN;KETCHUM, JOHN W. |
分类号 |
H03M13/00;H03M13/11;H04L1/00;(IPC1-7):H03M13/00 |
主分类号 |
H03M13/00 |
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