| 基于低码重分布的一类随机交织器设计 |
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| 引用本文： | 穆晓敏,张德辉,张卫党. 基于低码重分布的一类随机交织器设计[J]. 电波科学学报, 2004, 19(5): 603-606 |
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| 作者姓名： | 穆晓敏 张德辉 张卫党 |
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| 作者单位： | 郑州大学信息工程学院,河南,郑州,450052;郑州大学信息工程学院,河南,郑州,450052;郑州大学信息工程学院,河南,郑州,450052 |
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| 摘 要： | 提出一种新的Turbo码的随机交织器的设计方法.该方法不仅考虑了重2自结尾序列对低码重分布的影响,还考虑了2重重2自结尾序列对低码重分布的影响.如果重2和2重重2自结尾序列是Turbo码低码重分布的主要分量,用这种交织器就可以获得更大的最小码重.计算机仿真显示,无论是高斯白噪声信道还是衰落信道,与S交织器和仅消除重2自结尾序列的交织器相比,该方法设计的交织器可以获得更大的编码增益.
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| 关 键 词： | Turbo码 码重分布 交织器 误码率 |
| 文章编号： | 1005-0388(2004)05-0603-04 |
| 修稿时间： | 2003-09-03 |
Design of random interleaver based on the distribution of low weights of turbo codes |
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| MU Xiao-min ZHANG De-hui ZHANG Wei-dang. Design of random interleaver based on the distribution of low weights of turbo codes[J]. Chinese Journal of Radio Science, 2004, 19(5): 603-606 |
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| Authors: | MU Xiao-min ZHANG De-hui ZHANG Wei-dang |
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| Abstract: | Considering the weight-2 self terminating sequences and its two combination, a new design method of random interleaver is presented in this paper. If the weight-2 self terminating sequences and its two combination are the main components of the low weight distributions of Turbo codes, a much higher minimum-weight can be obtained by the new interleaver. The simulations show that the new designed interleaver has a super performance to the other interleavers for both AWGN channel and fading channel. |
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| Keywords: | Turbo codes distribution of code weight interleaver BER |
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