| VoIP网络会议系统中分层服务和组播功能的研究 |
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| 引用本文： | 王南,聂朋朋,陆建德.VoIP网络会议系统中分层服务和组播功能的研究[J].计算机应用与软件,2010,27(4):245-248. |
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| 作者姓名： | 王南 聂朋朋 陆建德 |
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| 作者单位： | 苏州大学计算机科学与技术学院,江苏省计算机信息处理技术重点实验室,江苏,苏州,215006 |
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| 摘 要： | 首先概述会议模型的分类,重点分析信令集中、媒体流分布的会议模型下结点采用单播分发音频流的缺点,然后提出一种基于分层服务的会议系统改进方案,同时引入应用层组播技术实现较大规模会议中音频流的转发,并对会议组播树的构建及性能进行了讨论。
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| 关 键 词： | 会议模型 分层服务 组播 |
ON LAYERED SERVICE AND MULTICAST FUNCTION IN VoIP NETWORK CONFERENCING SYSTEM |
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| Wang Nan,Nie Pengpeng,Lu Jiande.ON LAYERED SERVICE AND MULTICAST FUNCTION IN VoIP NETWORK CONFERENCING SYSTEM[J].Computer Applications and Software,2010,27(4):245-248. |
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| Authors: | Wang Nan Nie Pengpeng Lu Jiande |
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| Affiliation: | Jiangsu Province Computer IT Key Lab/a>;School of Computer Science and Technology/a>;Soochow University/a>;Suzhou 215006/a>;Jiangsu/a>;China |
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| Abstract: | In this paper we first outline the classification of conference models,the analysis emphasis is put on the advantages and disadvantages of distributing audio stream with unicast by the nodes in the conference model of concentrated signaling and distributed media stream,then propose an improved conference system scheme based on layered service,and simultaneously introduce the application layer multicast technology to realize the transmission of audio stream in large scale conference,the construction and perf... |
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| Keywords: | Conference model Layered service Multicast |
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