发明名称 |
INSPECTION MATRIX GENERATION METHOD, ENCODING METHOD, COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND ENCODER |
摘要 |
A check-matrix generating method includes a quasi-cyclic matrix generating step of generating a regular quasi-cyclic matrix in which cyclic permutation matrices are arranged in a row direction and a column direction and specific regularity is given to the cyclic permutation matrices; a mask-matrix generating step of generating a mask matrix capable of supporting a plurality of encoding rates, for making the regular quasi-cyclic matrix into irregular; a masking step of converting a specific cyclic permutation matrix in the regular quasi-cyclic matrix into a zero-matrix using a mask matrix corresponding to a specific encoding rate to generate an irregular masking quasi-cyclic matrix; and a check-matrix generating step of generating an irregular parity check matrix with an LDGM (low-density generation matrix) structure in which the masking quasi-cyclic matrix and a matrix in which the cyclic permutation matrices are arranged in a staircase manner are arranged in a predetermined location.
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申请公布号 |
EP2053751(A1) |
申请公布日期 |
2009.04.29 |
申请号 |
EP20070791869 |
申请日期 |
2007.08.02 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
MATSUMOTO, WATARU;SAKAI, RUI;YOSHIDA, HIDEO |
分类号 |
H03M13/19 |
主分类号 |
H03M13/19 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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