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A Dynamic Scalable Video Conference System Based on SIP

机译:基于SIP的动态可扩展视频会议系统

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The Session Initiation Protocol (SIP) provides powerful and flexible signaling capabilities for building video conferencing services. Traditionally, for SIP-based centralized video conference systems, the conferencing scale is mainly limited by both the capability of conference server and the availability of bandwidth. In this paper, our design focuses on how to provide dynamic scalability for the SIP-based video conferencing system when the number of conference users increases continually. Based on the study of the SIP protocol and the existing video conferencing models, we propose a dynamic scalable service model that can support to dynamically increase the number of conference servers without negative influence on the stability of system. This enables the extra service requests to be transferred and served in the cooperated conference servers. The paper also addresses the SIP-enabled conferencing flows based on the model in detail. We developed a prototype of video conference system based on the proposed model. Experimental results demonstrate the validity of this service model.
机译:会话发起协议(SIP)为构建视频会议服务提供了强大而灵活的信令功能。传统上,对于基于SIP的集中式视频会议系统,会议规模主要受到会议服务器的能力和带宽的可用性。在本文中,我们的设计侧重于如何为基于SIP的视频会议系统提供动态可扩展性,当用户的数量不断增加时。基于SIP协议和现有视频会议模型的研究,我们提出了一种动态可扩展的服务模型,可以支持动态增加会议服务器的数量,而不会对系统稳定性的负面影响。这使得能够在合作会议服务器中传输和服务额外的服务请求。本文还详细介绍了基于模型的启用SIP的会议流程。我们基于所提出的模型开发了一种视频会议系统的原型。实验结果表明了这一服务模型的有效性。

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