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公开(公告)号:US20090182536A1
公开(公告)日:2009-07-16
申请号:US12178355
申请日:2008-07-23
CPC分类号: H04L1/203
摘要: A dual adaptive importance-sampling system and method is provided that can estimate the probability of events by combining dual complementary importance-sampling simulations. The present invention exploits the ability to determine an optimal biased pdf using an iterative procedure that requires relatively little a priori knowledge of how to bias. Hence, the present invention is particularly suited for evaluating the BERs and/or WERs of coded communication and storage systems, and is generally applicable to arbitrarily chosen codes. When applied to coded communication and storage systems, the present invention provides a versatile technique for the fast and accurate estimation of BERs and WERs of FEC codes down to values of 10−20 or lower.
摘要翻译: 提供了一种双重自适应重要性抽样系统和方法,可以通过组合双重互补重要性抽样模拟来估计事件的概率。 本发明利用了使用迭代过程确定最佳偏差pdf的能力,该迭代过程需要相对较少的如何偏向的先验知识。 因此,本发明特别适用于评估编码的通信和存储系统的BER和/或WER,并且通常适用于任意选择的代码。 当应用于编码通信和存储系统时,本发明提供了一种通用技术,用于将FEC码的BER和WER的快速和准确估计降低到10-20或更低的值。
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公开(公告)号:US08144757B2
公开(公告)日:2012-03-27
申请号:US12178355
申请日:2008-07-23
IPC分类号: H04B3/46
CPC分类号: H04L1/203
摘要: A dual adaptive importance-sampling system and method is provided that can estimate the probability of events by combining dual complementary importance-sampling simulations. The present invention exploits the ability to determine an optimal biased pdf using an iterative procedure that requires relatively little a priori knowledge of how to bias. Hence, the present invention is particularly suited for evaluating the BERs and/or WERs of coded communication and storage systems, and is generally applicable to arbitrarily chosen codes. When applied to coded communication and storage systems, the present invention provides a versatile technique for the fast and accurate estimation of BERs and WERs of FEC codes down to values of 10−20 or lower.
摘要翻译: 提供了一种双重自适应重要性抽样系统和方法,可以通过组合双重互补重要性抽样模拟来估计事件的概率。 本发明利用了使用迭代过程确定最佳偏差pdf的能力,该迭代过程需要相对较少的如何偏向的先验知识。 因此,本发明特别适用于评估编码的通信和存储系统的BER和/或WER,并且通常适用于任意选择的代码。 当应用于编码通信和存储系统时,本发明提供了一种通用技术,用于将FEC码的BER和WER的快速和准确估计降低到10-20或更低的值。
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