本文已被：浏览 1709次 下载 2909次
Received:December 10, 2012 Revised:February 04, 2013
Received:December 10, 2012 Revised:February 04, 2013
中文摘要: 简单介绍了GBS(全球广播业务)系统, 对其承载的业务进行分析, 提出了基于隐马尔可夫模型的业务流量建模方法. 在Qualnet中搭建了GBS仿真场景, 生成并测量了业务流量. 并在Matlab中实现了对GBS系统中四种业务流量的建模. 结果表明, 该模型只选用数据包大小和数据包间隔等受加密技术影响不大的流量特征进行建模, 更能真实地反映GBS系统的业务流量特征. 采用离散型的随机变量, 降低了建模的计算复杂度, 减少了建模时间, 提高了实时性.
Abstract:This paper briefly analyses the type of service of the GBS(Global Broadcast Service),put forward an approach of the service modeling based on Hidden Markov Model(HMM). By simulating the GBS in Qualnet, the service traffic trace is captured. The proposed modeling approach is realized in Matlab. The HMM based modeling approach only used two variables: packet size and inter packet time, which are hardly influenced by encryption techniques. The experiment results show that by the use of discrete variables, the proposed modeling approach can decrease the calculating complexity and model constructing time, improve the time cost.
keywords: GBS HMM(hidden markov model) service modeling
文章编号： 中图分类号： 文献标志码：
基金项目:
| Author Name | Affiliation |
| CHENG Jing-Wen | Electronic Engineering Institute, Hefei 230037, China |
| SHAN Hong | Electronic Engineering Institute, Hefei 230037, China |
| Author Name | Affiliation |
| CHENG Jing-Wen | Electronic Engineering Institute, Hefei 230037, China |
| SHAN Hong | Electronic Engineering Institute, Hefei 230037, China |
引用文本：
程静文,单洪.GBS业务流量的隐马尔可夫模型.计算机系统应用,2013,22(7):192-195
CHENG Jing-Wen,SHAN Hong.GBS Service Modeling Based on Hidden Markov Model.COMPUTER SYSTEMS APPLICATIONS,2013,22(7):192-195
程静文,单洪.GBS业务流量的隐马尔可夫模型.计算机系统应用,2013,22(7):192-195
CHENG Jing-Wen,SHAN Hong.GBS Service Modeling Based on Hidden Markov Model.COMPUTER SYSTEMS APPLICATIONS,2013,22(7):192-195
