| 一种基于信道状态信息的最优软判决译码 |
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| 引用本文： | 朱军.一种基于信道状态信息的最优软判决译码[J].通信技术,2002(6):38-39. |
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| 作者姓名： | 朱军 |
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| 作者单位： | 安徽大学电子工程与信息科学系,合肥,230039 |
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| 摘 要： | 针对衰减信道卷积码的译码,给出了当信道附加噪声非固定时,计算最优软判决度量的表达式。仿真结果表明,在适当的信噪比条件下,采用该方法比硬判决的信噪比提高2dB。
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| 关 键 词： | 软判决 维特比算法 信噪比 |
| 修稿时间： | 2002年2月25日 |
An Optimum Soft Decision Decoding Based on Channel State Information |
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| Zhu Jun.An Optimum Soft Decision Decoding Based on Channel State Information[J].Communications Technology,2002(6):38-39. |
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| Authors: | Zhu Jun |
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| Abstract: | The approach of computing the optimum soft decision metrics for decoding of convolution codes on fading channels is presented. The formulation is given in which the additive noise on the channel is nonstationary. The simulation results show that at moderate signal-to-noise ratios, the approach of soft decision improved 2dB compared with hard decision decoding. |
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| Keywords: | soft decision Vertibi algorithm signal-to-noise ratio |
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