LDPC encoder and decoder and method thereof
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United States of America Patent
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Feb 27, 2007
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app pub date -
Dec 7, 2000
filing date -
Apr 27, 2000
priority date (Note) -
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Abstract
A method of decoding low-density parity-check codes comprises a first step that includes calculating .left brkt-bot..left brkt-bot.rR.sub.ml, for each parity check equation, at iteration i-1, in response to a third step. A second step includes decision aided equalizing, at iteration i, in response to the first step. The third step includes calculating .left brkt-bot..left brkt-bot.rQ.sub..left brkt-bot.m, for each parity check equation, at iteration i in response to the second step, wherein .left brkt-bot..left brkt-bot.rQ.sub..left brkt-bot.m represents information from bit node l to equation node m, one for each connection, and wherein .left brkt-bot..left brkt-bot.rR.sub.ml represents information from equation node m to bit node l, one for each connection.
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