| Turbo码SOVA译码器的系统仿真及性能分析 |
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| 引用本文： | 林杰,贾怀义.Turbo码SOVA译码器的系统仿真及性能分析[J].北京交通大学学报(自然科学版),2003,27(6):31-34,39. |
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| 作者姓名： | 林杰 贾怀义 |
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| 作者单位： | 北京交通大学电子信息工程学院，北京交通大学电子信息工程学院 北京100044，北京100044 |
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| 摘 要： | 主要分析了3GPP标准中Turbo码采用SOVA译码器的译码性能.3GPP标准中给出了1/3Turbo码的编码结构和交织器设计方案,但未能给出译码方案.作者对帧长为4000bit的Turbo码,采用了SOVA译码器进行建模仿真.比较了SOVA译码器与MAX＿LOG＿MAP译码器译码的性能和实现复杂度.本文作者认为,从综合算法的性能、计算复杂度和时延等方面来考虑,SOVA译码器作为Turbo码的译码是一个比较好的选择.
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| 关 键 词： | 无线通信技术 Turbo码 软输出维特比(SOVA)译码器 最大值对数域最大后验概率(MAX_LOG_MAP)译码器 信道编码 译码 |
| 文章编号： | 1000-1506(2003)06-0031-04 |
| 修稿时间： | 2003年2月17日 |
System Emulation and Performance Analysis of Turbo Codes with SOVA Decoders |
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| LIN Jie,JIA Huai_yi.System Emulation and Performance Analysis of Turbo Codes with SOVA Decoders[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2003,27(6):31-34,39. |
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| Authors: | LIN Jie JIA Huai_yi |
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| Abstract: | This paper addresses the performance of Turbo codes with SOVA decoders in 3GPP Standards. In 3GPP Standards, the basic structure of Turbo encoder and interleaver design are described, but not providing the decoding scheme. So, the author emulates the turbo coding system with SOVA decoder for frame size of 4 000 by computer. The decoding performance by the system emulation, the implementation complexity by the hardware of Turbo codes with SOVA decoders, and the MAX_LOG_MAP decoders are compared. Take the consideration of performance, compute the complexity and time delay, the author thinks that SOVA decoders is a good choice for Turbo decoding. |
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| Keywords: | wireless communication technology Turbo codes SOVA decoders MAX-LOG-MAP decoders channel coding decoding |
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