发明授权
US07679536B2 Method and apparatus for constructing efficient slepian-wolf codes with mismatched decoding
有权
用于构建具有错误解码的高效率的蛇形码的方法和装置
- 专利标题: Method and apparatus for constructing efficient slepian-wolf codes with mismatched decoding
- 专利标题(中): 用于构建具有错误解码的高效率的蛇形码的方法和装置
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申请号: US11782249申请日: 2007-07-24
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公开(公告)号: US07679536B2公开(公告)日: 2010-03-16
- 发明人: Jun Chen , Dake He , Ashish Jagmohan
- 申请人: Jun Chen , Dake He , Ashish Jagmohan
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Whitham, Curtis, Christofferson & Cook, P.C.
- 代理商 Brian P. Verminski
- 主分类号: H03M7/30
- IPC分类号: H03M7/30
摘要:
Disclosed is a method for constructing Slepian-Wolf codes, wherein the designed Slepian-Wolf codes are robust to mismatched decoding. The disclosed method for constructing Slepian-Wolf codes includes the steps of: choosing representative probability distributions from a set of possible probability distributions; choosing a probability distribution as a decoding metric; converting the chosen decoding metric to a cyclic-symmetric channel; computing the initial message value given the cyclic-symmetric channel; computing a set of probability distributions of the initial message given the initial message values and the representative probability distributions; optimizing the degree distribution given the set of probability distributions of the initial message; optimizing the decoding metric.
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