| 衰落信道中结合短帧交织的Turbo码的研究 |
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| 引用本文： | 罗 骥,张曦林,袁东风. 衰落信道中结合短帧交织的Turbo码的研究[J]. 通信学报, 2005, 26(4): 94-98 |
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| 作者姓名： | 罗 骥 张曦林 袁东风 |
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| 作者单位： | 山东大学,信息科学与工程学院,山东,济南,250100 |
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| 基金项目： | 国家自然科学基金资助项目(60372030)，国家留学回国基金资助项目(教外司留[2003]406)，山东省自然科学基金重点项目(Z2003G02) |
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| 摘 要： | Turbo码作为信道编码方案,可以获得较高的误比特性能,而交织器的设计是影响Turbo码性能的关键环节。在码的重量分析的基础上,借用稀疏矩阵概念,对S型随机交织器进行改进,提出了一种短帧交织器的设计原则,它可以减少低重量码的数量,从而提高Turbo码的性能。
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| 关 键 词： | Turbo码 交织器 MAP Log-MAP Max-Log-MAP SOVA |
| 文章编号： | 1000-436X(2005)04-0094-05 |
| 修稿时间： | 2003-12-28 |
Research on Turbo codes with short frame interleaver in fading channel |
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| LUO Ji,ZHANG Xi-lin,YUAN Dong-feng. Research on Turbo codes with short frame interleaver in fading channel[J]. Journal on Communications, 2005, 26(4): 94-98 |
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| Authors: | LUO Ji ZHANG Xi-lin YUAN Dong-feng |
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| Abstract: | High BER performance could be obtained by employing Turbo codes as channel coding scheme, whereas the design of interleaver was the key factor which influenced the performance of Turbo codes. A design scheme of short frame interleaver based on the study of code weight was proposed with the notion of sparse matrix by modifying S random interleaver. The performance of Turbo code with this short frame interleaver is improved by decreasing the number of low weight codewords. |
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| Keywords: | Turbo codes interleaver MAP Log-MAP Max-Log-MAP SOVA |
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