| Rayleigh衰落信道下一种实用的Turbo解码算法 |
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| 引用本文： | 许可,万建伟,王玲.Rayleigh衰落信道下一种实用的Turbo解码算法[J].国防科技大学学报,2011,33(4):113-116,174. |
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| 作者姓名： | 许可 万建伟 王玲 |
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| 作者单位： | 国防科技大学电子科学与工程学院,湖南长沙,410073 |
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| 基金项目： | 湖南省自然科学基金项目(11JJ3066) |
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| 摘 要： | 通过理论和仿真实验证明:无论Rayleigh衰落信道是否完美估计,Max-Log-MAP算法都与信噪比无关,而且还与其他信道参数无关.通过缩放Max-Log-MAP算法输出软信息的幅度,在没有增加运算量的前提下,解码性能提高到了与Log-MAP算法相当的程度.由于缩放软信息的Max-Log-MAP算法不需要任何信道参数...
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| 关 键 词： | Turbo解码 Rayleigh衰落信道 信道置信度 Max-Log-MAP算法 Log-MAP算法 |
| 收稿时间： | 2010/9/20 0:00:00 |
A Practical Turbo Decoding Algorithm on Rayleigh Fading Channels |
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| XU Ke,WAN Jianwei and WANG Ling.A Practical Turbo Decoding Algorithm on Rayleigh Fading Channels[J].Journal of National University of Defense Technology,2011,33(4):113-116,174. |
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| Authors: | XU Ke WAN Jianwei and WANG Ling |
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| Institution: | XU Ke,WAN Jian-wei,WANG Ling(College of Electrical Science and Engineering,National Univ.of Defense Tech.,Changsha 410073,China) |
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| Abstract: | It is confirmed by theoretical analysis and simulation results that,whether the Rayleigh fading channel is perfectly estimated or not,the Max-Log-MAP algorithm is independent of the channel signal-to-noise ratio(SNR),.In addition,the Max-Log-MAP algorithm does not depend on any other channel parameter.By scaling the soft output,the Max-Log-MAP decoder performs nearly as well as the Log-MAP decoder,while this gain is achieved without any complexity increase.As no channel parameter estimator is needed,from a ... |
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| Keywords: | turbo decoding rayleigh fading channels channel reliability factor Max-Log-MAP algorithm Log-MAP algorithm |
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