一种新的ATM网VBR视频业务模型 |
| |
引用本文: | 徐树公 黄载禄. 一种新的ATM网VBR视频业务模型[J]. 电子学报, 1997, 25(1): 102-105 |
| |
作者姓名: | 徐树公 黄载禄 |
| |
作者单位: | 华中理工大学电子与信息工程系 |
| |
摘 要: | 许多研究工作表明VBR视频业务的每帧信元数服从Gamma分布,便是考虑这一性质的视频业务模型却很少。本文提出一种新的视频业务模型,一阶自回归Gamma序列,以值是Gamma分布的随机变量,文中给出GAR模型的定义及有关性质,对GAR(1)视频模型的参数估计方法也作了研究。
|
关 键 词: | ATM网 VBR视频业务 模型 电视 |
A New VBR Video Traffic Model on ATM Networks |
| |
Abstract: | Several works have concluded that the number of cells per frame of VBR video follows a gamma distribution. But few model meets this character. In this paper we propose a novel video model, a first-order autoregressive (AR) gamma sequence, in which random variables are marginally distributed as gamma variables. We give the definition of GAR model and show some characters of GAR(1). The parameter estimation method is studied too. Simulation results show that our model can reflect the characters of VBR video better than the former models. It is more easy and accurate to create simulation data sequences using this new model. |
| |
Keywords: | ATM network VBR video traffic Gamma autoregressive (GAR) model |
本文献已被 CNKI 维普 等数据库收录! |