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Check Node Update Method in Low Density Parity Check Decoder
Check Node Update Method in Low Density Parity Check Decoder
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机译:低密度奇偶校验解码器中的校验节点更新方法
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摘要
PROBLEM TO BE SOLVED: To provide a check node updating method in a low-density parity decoder by which performance deterioration is reduced in comparison with the case that existent BP algorithm is used.;SOLUTION: The method includes steps for a lot of check nodes to: receive LLR (Log-Likelihood Ratio) messages from each of variable nodes; constitute each of the LLR message serial to each of the check node; and update the check node via a function including a g'(x) function approximated by the sum of index functions on the basis of the LLR message.;COPYRIGHT: (C)2007,JPO&INPIT
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