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基于分形布朗运动的等效带宽及其参数计算算法 被引量：1

Fractional Brownian Motion Based Equivalent Capacity and Parameter Evaluation Algorithm
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摘要 在推导一种新型的基于分形布朗运动(fractional brownian motion,FBM)的等效带宽计算模型的基础上,提出了基于小波分析的Hurst参数计算模型。首先给出了ON/OFF数据源的数学定义,然后在此基础上推导了基于FBM的等效带宽计算模型。对模型的敏感性分析表明,Hurst参数是该模型的重要参数,文中提出了一种改进的基于小波分析的Hurst参数检测算法。仿真证明,所提的等效带宽模型正确有效,Hurst参数检测算法精度显著提高。 A novel Fractional Brownian Motion （FBM） based equivalent capacity evaluation and relative parameter computing algorithms are brought forward. Firstly, the mathematic definitions of the ON/OFF source are given. Then FBM based equivalent capacity evaluation formula is deduced. Because of the great importance of the Hurst parameter, an enhanced wavelet-based estimator of the Hurst parameter is proposed. The simulation shows that the algorithms proposed in this paper are superior to those currently used.
作者 徐名海 彭玉旭
机构地区 南京邮电大学通信与信息工程学院 长沙理工大学计算机与通信工程学院
出处 《南京邮电大学学报（自然科学版）》 2009年第1期46-50,共5页 Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
基金 江苏省自然科学基金(BK2007604)资助项目
关键词 分形布朗运动 等效带宽 HURST参数 小波分析 FBM equivalent capacity burst parameter wavelet-based estimator
分类号 TN919.3 [电子电信—通信与信息系统]
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参考文献14

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同被引文献11

  • 1温倩.3G系统分组域业务源模型的研究与应用.电子科技大学毕业论文.2006.
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  • 3Norros I.On the use of fractional brownian motion in the theory of connectionless networks. IEEE Journal on Selected Areas in Communication, 1995, 13(6):953-962.
  • 4Sadek N, Khotanzad A, Chen T. ATM dynamic bandwidth allocation using FARIMA prediction model. In: ICCCN 2003, Dallas Texas ,USA ,2003 : 359-363.
  • 5Harmantzis F C. Data network traffic modeling and engineering using stable and fractal processes.University of Toronto(Canada), 2002.
  • 6Feldmann cascades : traffic. In A, Gilbert A C, Willinger W. Data networks as investigating the multifractal nature of internet WAN 1998:42-55 Proc of ACM SIGCOMM'98,Vancouver,Canada.
  • 7Riedi R, Crouse M S, Ribeiro V J, et al. Muhifractal wavelet model with application to network traffic. IEEE Transactions on Information Theory, 1999, 45(3): 992-1018.
  • 8Liu N X, Baras J S. Statistical modeling and performance analysis of multi-scale traffic. In: INFOCOM 2003, San Francisco California, USA, 2003:1837-1847.
  • 9谭献海.网络业务自相似特性及其对排队性能影响的研究.西南交通大学毕业论文.2006.
  • 10喻莉,陈晨.一种基于数据块选择的方差时间图Hurst参数估计方法[J].计算机科学,2007,34(12):33-36. 被引量：3

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南京邮电大学学报（自然科学版）
2009年 第1期

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