发明名称 |
Evaluating and optimizing error-correcting codes using projective analysis |
摘要 |
A method evaluates and optimizes an error-correcting code to be transmitted through a noisy channel and to be decoded by an iterative message-passing decoder. The error-correcting code is represented by a parity check matrix which is modeled as a bipartite graph having variable nodes and check nodes. A set of message passing rules is provided for the decoder. The decoder is analyzed to obtain a set of density evolution rules including operators and operands which are then transformed to projective operators and projected operands to generate a set of projective message passing rules. The projective message passing rules are applied iteratively to the error-correcting code modeled by the bipartite graph until a termination condition is reached. Error rates of selected bits of the error-correcting code are then determined by evaluating the corresponding operands. The error rates can be passed to an optimizer to optimize the error-correcting code.
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申请公布号 |
US6842872(B2) |
申请公布日期 |
2005.01.11 |
申请号 |
US20010968182 |
申请日期 |
2001.10.01 |
申请人 |
MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC. |
发明人 |
YEDIDA JONATHAN S.;SUDDERTH ERIK B.;BOUCHAUD JEAN-PHILIPPE |
分类号 |
G06F11/10;H03M13/00;H03M13/01;H03M13/09;H03M13/11;(IPC1-7):G06F11/00 |
主分类号 |
G06F11/10 |
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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