| 自相似VBR视频源业务流的建模和仿真 |
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| 引用本文： | 奚亮, 金惠文. 自相似VBR视频源业务流的建模和仿真[J]. 电子与信息学报, 2000, 22(5): 799-805. |
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| 作者姓名： | 奚亮 金惠文 |
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| 作者单位： | 北京邮电大学电信工程学院,北京,100876 |
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| 摘 要： | 该文在对实际VBR MPEG视频源统计特性分析的基础上,参照分形高斯噪声自相似(Fractional Gaussian Noise Self-Similar)模型产生方法,实现了对ATM网络中最主要业务流VBR视频源流的建模,提出了改进方法,使得对实际源的仿真不仅考虑到了长期相关性,同时也兼顾到了短期相关性。仿真结果表明,经改进的自相似VBR视频源模型是一种较理想的模型。
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| 关 键 词： | 视频源建模 长期相关性 自相似模型 |
| 收稿时间： | 1998-12-17 |
| 修稿时间： | 1998-12-17 |
THE MODELING AND SIMULATION OF SELF-SIMILAR VBR VIDEO TRAFFIC |
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| Xi Liang, Jin Huiwen. THE MODELING AND SIMULATION OF SELF-SIMILAR VBR VIDEO TRAFFIC[J]. Journal of Electronics & Information Technology, 2000, 22(5): 799-805. |
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| Authors: | Xi Liang Jin Huiwen |
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| Affiliation: | Xi Liang,Jin Huiwen(Beijing University of Poste and Telecommunications,Beijing 100876) |
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| Abstract: | A statistical characteristics model of empirical VBR MPEG-I video streams is presented in this paper. Based on fractional Gaussian noise process, an self-similar model approach which models directly both the short-range dependence and long-range dependence empirical autocorrelation structure is studied. According to the simulation result, the improved self-similar process is a better model of VBR video traffic. |
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| Keywords: | Video traffic modeling Long-range dependence Self-similar model |
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