SPC乘积码用于纠删译码的性能分析  

Performance of SPC Product Codes Under Erasure Decoding

作　　者：赵继春[1] 邹曙光[1] 沈元隆[1] 

机构地区：[1]南京邮电学院电子工程系,南京210003

出　　处：《通信技术》2003年第10期33-35,共3页Communications Technology

摘　　要：SPC乘积码是一种既可以纠错,又可以恢复删除的高效码。该码的最小码距是4,能够恢复所有单阶,两阶和三阶的删除模式,实际上这种码能够恢复更高阶的删除模式。传统上是通过最小码间距来评价SPC乘积码译码性能,若从其空间结构入手,能够推导出SPC乘积码迭代译码后删除率的新上界。仿真显示这个上界更紧。Product codes are powerful codes that can be used to correct errors or reco ver erasures.This code has a mini-mum distance of four and can thus be used to recover all single,double,and triple erasure patterns.Judging th e code perfor-mance based on its minimum distance i s very bad because the code is actuall y capable of recovering many higher e rasure pat-terns.This paper develops a new algo rithm for deriving an upper bound on t he post -decoding erasure rate for th e SPC product code with iterative decoding.

关 键 词：SPC乘积码 删除模式 

分 类 号：TN91[电子电信—通信与信息系统]