| AWGN信道上比特交织、迭代译码的格码调制 |
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| 引用本文： | 谭明新,徐根深.AWGN信道上比特交织、迭代译码的格码调制[J].系统工程与电子技术,2001,23(12):21-24. |
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| 作者姓名： | 谭明新 徐根深 |
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| 作者单位： | 1. 哈尔滨工程大学电子工程系,
2. 武汉七二二研究所, |
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| 摘 要： | 论述了比特交织网格编码调制(BICM).为了获取较好的性能,给出了AWGN信道上一种硬判决反馈迭代译码(ID)方法,从而证实了具有好的汉明距离特性的卷积码能为BICM-ID提供大的Euclidean距离.把收缩卷积码和多相位/电平调制有效地结合起来,组成变码率传输的简单结构.
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| 关 键 词： | 信号处理 编码 译码 调制技术 |
| 文章编号： | 1001-506X(2001)12-0021-04 |
| 修稿时间： | 2000年12月22 |
Trellis-Coded Modulation With Bit Interleaving and Iterative Decoding |
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| TAN Ming xin\ ,XU Gen shen\.Trellis-Coded Modulation With Bit Interleaving and Iterative Decoding[J].System Engineering and Electronics,2001,23(12):21-24. |
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| Authors: | TAN Ming xin\ XU Gen shen\ |
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| Institution: | TAN Ming xin\ 1,XU Gen shen\ 2 |
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| Abstract: | This paper considers bit-leaved coded modulation (BICM) for bandwidth-efficient transmission over AWGN channels. A simple iterative decoding (ID) method with hard-decision feedback is suggested to achieve better performance. The paper shows that convolutional codes with good Hamming-distance property can provide large free Euclidean distance for BICM-ID. BICM-ID allows an efficient combination of punctured convolutional codes and multiphase/level modulation, and therefore provides a simple mechanism for variable-rate transmission. |
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| Keywords: | Signal processing Coding Decoding Modulation technique |
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