Emma Middleware : An Application-level Multicast Infrastructure for Multi-party Video Communication
Emma Middleware : An Application-level Multicast Infrastructure for Multi-party Video Communication
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Emma Middleware：用于多方视频通信的应用程序级组播基础设施
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
K. Taniguchi
中科院分区：
文献类型：
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作者：
T. Yamashita;Hirozumi Yamaguchi;K. Yasumoto;T. Higashino;K. Taniguchi
In this paper, we propose new middleware written in Java based on an application level multicast protocol. This middleware is designed for multi-party video communication systems such as video chatting systems where multiple video streams are multicast simultaneously on overlay networks. The main contribution of our middleware is that it provides two types of QoS control mechanisms on overlay networks suitable for such an application. One is interstream QoS control, which controls the number of video streams on overlay links based on priority given to those streams. Another is intra-stream QoS control which provides congestion control on each overlay link. Also, our middleware has a quick recovery mechanism against end hosts’ failure/leave. Our experimental results have shown that our middleware could realize a video chatting application without causing serious delay and jitter, which is considered inevitable in application level multicast protocols.
