极化码离散CRC辅助译码
TN911.2; 在中短码长下,不带循环冗余校验(CRC)辅助的极化码已经不具有竞争力,为了增强极化码译码性能,一般采用CRC辅助译码.针对传统的集中式CRC辅助方案只能在译码结束后选择路径而无法在译码中做剪枝操作,文章提出一种通过交织器在极化码信息比特间离散分配CRC比特的辅助译码方案,此方案允许CRC比特能够辅助串行抵消列表(SCL)译码期间幸存路径的选择以改善差错性能.仿真结果表明,与集中式CRC辅助译码方案相比,该算法在码率为0.125、误块率在10-1以下、CRC长度为8时提供0.5 dB增益;CRC长度为16时提供1.3 dB增益....
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| Published in | Guangtongxin Yanjiu no. 3; pp. 8 - 12 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | Chinese |
| Published |
重庆邮电大学 通信与信息工程学院,重庆,400065
2019
《光通信研究》编辑部 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1005-8788 |
| DOI | 10.13756/j.gtxyj.2019.03.002 |
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| Abstract | TN911.2; 在中短码长下,不带循环冗余校验(CRC)辅助的极化码已经不具有竞争力,为了增强极化码译码性能,一般采用CRC辅助译码.针对传统的集中式CRC辅助方案只能在译码结束后选择路径而无法在译码中做剪枝操作,文章提出一种通过交织器在极化码信息比特间离散分配CRC比特的辅助译码方案,此方案允许CRC比特能够辅助串行抵消列表(SCL)译码期间幸存路径的选择以改善差错性能.仿真结果表明,与集中式CRC辅助译码方案相比,该算法在码率为0.125、误块率在10-1以下、CRC长度为8时提供0.5 dB增益;CRC长度为16时提供1.3 dB增益. |
|---|---|
| AbstractList | 在中短码长下,不带循环冗余校验(CRC)辅助的极化码已经不具有竞争力,为了增强极化码译码性能,一般采用CRC辅助译码。针对传统的集中式CRC辅助方案只能在译码结束后选择路径而无法在译码中做剪枝操作,文章提出一种通过交织器在极化码信息比特间离散分配CRC比特的辅助译码方案,此方案允许CRC比特能够辅助串行抵消列表(SCL)译码期间幸存路径的选择以改善差错性能。仿真结果表明,与集中式CRC辅助译码方案相比,该算法在码率为0.125、误块率在10-1以下、CRC长度为8时提供0.5 dB增益;CRC长度为16时提供1.3 dB增益。 TN911.2; 在中短码长下,不带循环冗余校验(CRC)辅助的极化码已经不具有竞争力,为了增强极化码译码性能,一般采用CRC辅助译码.针对传统的集中式CRC辅助方案只能在译码结束后选择路径而无法在译码中做剪枝操作,文章提出一种通过交织器在极化码信息比特间离散分配CRC比特的辅助译码方案,此方案允许CRC比特能够辅助串行抵消列表(SCL)译码期间幸存路径的选择以改善差错性能.仿真结果表明,与集中式CRC辅助译码方案相比,该算法在码率为0.125、误块率在10-1以下、CRC长度为8时提供0.5 dB增益;CRC长度为16时提供1.3 dB增益. |
| Author | 冯旺 陈路 |
| AuthorAffiliation | 重庆邮电大学 通信与信息工程学院,重庆,400065 |
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| Author_FL | CHEN Lu FENG Wang |
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| Snippet | TN911.2; 在中短码长下,不带循环冗余校验(CRC)辅助的极化码已经不具有竞争力,为了增强极化码译码性能,一般采用CRC辅助译码.针对传统的集中式CRC辅助方案只能在译码结束后... 在中短码长下,不带循环冗余校验(CRC)辅助的极化码已经不具有竞争力,为了增强极化码译码性能,一般采用CRC辅助译码。针对传统的集中式CRC辅助方案只能在译码结束后选择路径... |
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| SubjectTerms | 极化码;串行抵消列表算法;循环冗余校验;交织 |
| Title | 极化码离散CRC辅助译码 |
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