期刊文献+

一种基于层次结构的可扩展应用层组播模型

A Robust and Scalable Application Layer Multicast Model
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摘要 针对多树模型中流媒体数据的同步问题,提出了一种基于层次结构的应用层组播模型。该模型采用多描述编码技术对媒体数据进行编码,通过在各层节点中实现描述资源以及数据请求的均匀分布,节点以最大覆盖算法获取最大描述集,同时提高了动态环境下的健壮性。仿真试验说明,该模型实现了动态环境下的高可靠性,具有较好的可扩展性。 This paper proposed a hierarchical application layer multicast model to cope with the synchronization problem of streaming media in multiple tree model.Multiple description coding is adopted for coding of media data,and description resource and request are distributed uniformly in each layer,host acquires the maximum description set and high robustness in dynamic enviroment.Simulation experiment shows that the proposed model is high-scalable and reliable.
作者 张有为
出处 《长江大学学报(自科版)(上旬)》 CAS 2010年第3期72-75,共4页 JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI & ENG
基金 国家自然科学基金资助项目(60672051)
关键词 多描述编码 同步 健壮性 均匀分布 可扩展性 multiple description coding synchronization robustness uniform distribution scalability
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参考文献10

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