| 一种基于EVDO分组域可视电话业务源模型 |
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| 引用本文： | 明艳,李强,孙瑞杰. 一种基于EVDO分组域可视电话业务源模型[J]. 重庆邮电大学学报(自然科学版), 2013, 25(3): 341-346 |
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| 作者姓名： | 明艳 李强 孙瑞杰 |
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| 作者单位： | 重庆邮电大学信号与信息处理重庆市重点实验室,重庆,400065 |
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| 基金项目： | 信号与信息处理重庆市重点实验室建设项目（CSTC，2009CA2003）；国家科技重大专项（2012ZX03004009）；重庆邮电大学自然科学基金（A2011-09） |
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| 摘 要： | 针对EVDO(evolution-data optimized)网络分组域可视电话业务性质、用户行为特性、数据源的压缩协议和网络传输协议,提出了一种基于数据业务的可视电话业务源模型。首先,对音频和视频流分别采用三层和两层模型进行建模,再选取合适的模型参数对业务流进行描述,最后对业务源模型参数及分布进行求取和拟合。该模型可为EVDO网络仿真和系统规划提供参考依据。
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| 关 键 词： | EVDO分组域 可视电话业务 源模型 参数拟合 |
| 收稿时间： | 2012-07-20 |
A traffic source model of packet-switched videophone based on EVDO |
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| MING Yan,LI Qiang,SUN Ruijie. A traffic source model of packet-switched videophone based on EVDO[J]. Journal of Chongqing University of Posts and Telecommunications, 2013, 25(3): 341-346 |
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| Authors: | MING Yan LI Qiang SUN Ruijie |
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| Affiliation: | (Chongqing Key Laboratory of Signal and Information Processing,Chongqing University of Posts and Communications,Chongqing 400065,P.R.China) |
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| Abstract: | A traffic source model of evolution-data optimized packet-switched videophone is proposed based on corresponding user behavior characteristic, data compression protocol and network transport protocol. The audio and video data stream is first modeled with three -and two-layer models and then described by appropriately selected model parameters. Finally, these parameters and their distributions are derived and fitted. The proposed model can serve as a reference for EVDO network simulation and system planning. |
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| Keywords: | evolution data optimized(EVDO) packet switched videophone traffic source model parameter fitting |
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