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基于EMD的自相似流量Hurst指数估计 被引量:8

Estimation of Hurst Index of Self-similar Traffic Based on EMD
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摘要 针对表征自相似网络流量统计特性的赫斯特(Hurst)指数,讨论一种基于经验模式分解的Hurst指数估计算法。该算法通过对自相似网络流量数据进行自适应分解,得到一组满足指定余项误差的固有模态函数分量,由其能量对数化函数与Hurst指数之间的线性拟合,估计出Hurst指数。实验表明,该算法能对自相似网络流量的Hurst指数进行自适应估计。 This paper discusses a new method based on the Empirical Mode Decomposition(EMD) algorithm to estimate the Hurst index that is an important statistical parameter of self-similar network traffic. The algorithm can adaptively decompose self-similar traffic into a series of Intrinsic Mode Function(iMF). By using the relationship between the energy of IMFs and the Hurst index, it can adaptively estimate the Hurst parameter of self-similar traffic. Experimental results show that this algorithm can adaptively estimate the Hurst index of self-similar traffic.
作者 单佩韦 李明
出处 《计算机工程》 CAS CSCD 北大核心 2008年第23期128-129,172,共3页 Computer Engineering
基金 国家自然科学基金资助项目(60573125)
关键词 自相似 赫斯特指数 经验模式分解 self-similar Hurst index Empirical Mode Decomposition(EMD)
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参考文献7

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同被引文献60

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