发明申请
- 专利标题: Method for Encoding a Data Message K' for Transmission from Sending Station to Receiving Station as Well as Method for Decoding, Sending Station, Receiving Station and Software
- 专利标题(中): 用于编码从发送站到接收站的数据消息K'的方法以及解码,发送站,接收站和软件的方法
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申请号: US12226776申请日: 2007-04-26
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公开(公告)号: US20090204876A1公开(公告)日: 2009-08-13
- 发明人: Elena Costa , Egon Schulz , Petr Trifonov
- 申请人: Elena Costa , Egon Schulz , Petr Trifonov
- 优先权: EP06008954.7 20060428
- 国际申请: PCT/EP2007/054101 WO 20070426
- 主分类号: H03M13/11
- IPC分类号: H03M13/11
摘要:
Irregular LDPC codes have a construction which allows one to obtain a number of codes with different length from a single prototype code with a parity check matrix given by H=[Hz Hi], where Hz specifies the well-known zigzag pattern in the corresponding Tanner graph. The parity check matrices for longer codes are obtained as [Hz′ Π diag(Hi, . . . , Hi)], where Hz′ specifies a longer zigzag pattern depending on the number of matrices Hi used, and Π represents some permutation. This allows one to construct the decoder for a longer code by reusing hardware components developed for decoding the prototype code.
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