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    • 1. 发明申请
    • Apparatus and method for coding and decoding irregular repeat accumulate codes
    • 用于编码和解码不规则重复累加码的装置和方法
    • US20050132260A1
    • 2005-06-16
    • US11009231
    • 2004-12-10
    • Gyu-Bum KyungHong-Sii JeongJae-Yoel Kim
    • Gyu-Bum KyungHong-Sii JeongJae-Yoel Kim
    • H04L1/16H03M13/11H03M13/27H03M13/29H03M13/00
    • H03M13/2972H03M13/1148H03M13/1185H03M13/1194H03M13/27
    • An apparatus and method for coding an irregular Repeat Accumulate (RA) code. A repeater repeats a received information word such that the information word corresponds to weights of a first information part and a second information part of a parity check matrix in which permutation matrixes are arranged in the first information part and the second information part corresponding to the information word such that a minimum length of a cycle on a factor graph of the irregular RA code becomes a predetermined length and weights are irregular, and a dual diagonal matrix is arranged in a parity part corresponding to a parity. An interleaver interleaves a signal output from the repeater using an interleaving scheme predefined for the parity check matrix. An accumulator generates the irregular RA code by accumulating a signal output from the interleaver according to a weight of the parity part.
    • 用于对不规则重复累积(RA)代码进行编码的装置和方法。 中继器重复接收到的信息字,使得信息字对应于奇偶校验矩阵的第一信息部分和第二信息部分的权重,其中排列矩阵排列在第一信息部分中,第二信息部分对应于信息 字,使得不规则RA码的因子图上的周期的最小长度变为预定长度,并且权重是不规则的,并且在对应于奇偶校验的奇偶校验部分中布置双对角矩阵。 交织器使用为奇偶校验矩阵预定义的交织方案来交织从中继器输出的信号。 累加器通过根据奇偶校验部分的权重累加从交织器输出的信号来产生不规则RAD码。