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    • 3. 发明授权
    • 비이진부호에서의 SCR/SDR을 이용한 반복 복호 장치및 그 동작 방법
    • 用于非二进制代码的装置用SCR或SDR进行迭代解码及其操作方法
    • KR100776910B1
    • 2007-11-15
    • KR1020060087404
    • 2006-09-11
    • 포항공과대학교 산학협력단
    • 전경훈사공민
    • H03M13/37
    • H03M13/2975H03M13/2969H03M13/3753H03M13/3983H04L1/0051
    • An iterative decoding device using SCR/SDR(Sign Change Ratio/Sign Difference Ratio) in a non-binary code and an operation method thereof are provided to regulate the number of iterative decoding times by utilizing SCR or SDR for extrinsic information for each symbol, extrinsic information of bits, and an approximate value of bit extrinsic information. In an iterative decoding device using SCR/SDR in a non-binary code, an iterative decoding execution unit(100) iteratively decodes the non-binary code received from a transmitter, by a unit of 2^n-ary n-tuple binary symbol by using extrinsic information generated from a first decoder(101), for a second decoder(102), and inputting soft output generated from the second decoder, to the first decoder again. An SCR/SDR calculating unit(110) calculates SCR/SDR indicating the change ratio of the code by using extrinsic information related to the 2^n-ary n-tuple binary symbol. An iterative decoding stop unit(120) stops an iterative decoding operation and finishes decoding if the computed SCR/SDR is over each critical value.
    • 提供了使用非二进制码中的SCR / SDR(符号变化率/符号差分比)的迭代解码装置及其操作方法,以通过利用SCR或SDR为每个符号的外在信息来调节迭代解码次数, 比特的外部信息,以及比特外在信息的近似值。 在使用非二进制码中的SCR / SDR的迭代解码装置中,迭代解码执行单元(100)通过2 ^ n元n元组二进制符号的单位对从发送器接收的非二进制码进行迭代解码 通过使用从第一解码器(101)生成的外部信息,对于第二解码器(102),并且将从第二解码器产生的软输出再次输入到第一解码器。 SCR / SDR计算单元(110)通过使用与二进制n元组二进制符号相关的外在信息来计算指示代码的变化率的SCR / SDR。 迭代解码停止单元(120)停止迭代解码操作,并且如果所计算的SCR / SDR超过每个临界值,则完成解码。