| 引用本文: | 刘东华,唐朝京.基于交叉熵最小化的 Turbo 码迭代译码停止准则.[J].国防科技大学学报,2000,22(5):46-50.[点击复制] |
| LIU Donghua,TANG Chaojing.Turbo Iterative Decoding Stop Criterion Based on Cross-entropy Minimization[J].Journal of National University of Defense Technology,2000,22(5):46-50[点击复制] |
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| 基于交叉熵最小化的 Turbo 码迭代译码停止准则 |
| 刘东华, 唐朝京 |
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(国防科技大学 电子科学与工程学院, 湖南 长沙 410073)
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| 摘要: |
| 根据 Turbo 码最优译码算法及迭代译码的基本原理, 在保证迭代收敛的条件下, 利用交叉熵最小化原则推导出Turbo 码译码过程中停止迭代的准则, 并给出了一种降低计算复杂性和减少存贮空间的简化算法, 最后通过仿真证明了此迭代停止准则及其简化算法的有效性。 |
| 关键词: Turbo 码 迭代译码 交叉熵 停止准则 |
| DOI： |
| 投稿日期：1999-12-21 |
| 基金项目: |
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| Turbo Iterative Decoding Stop Criterion Based on Cross-entropy Minimization |
| LIU Donghua, TANG Chaojing |
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(College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Based on the optimal decoding algorithm and basic principle of iterative decoding for turbo code, the stop criterion for the iterative decoding is deduced under the condition of cross-entropy minimization and iteration convergence. A simplified algorithm that reduces calculation complexity and store space comparison to the original criterion is worked out. Finally, it is proved that the iterative stop criterion and its simplified algorithm are both valid by simulation. |
| Keywords: Turbo code iterative decoding cross-entropy stop criterion |
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