On Large Scale Peer-To-Peer Live Video Distribution : CoolStreaming and Its Prelimianry Experimental Results
On Large Scale Peer-To-Peer Live Video Distribution : CoolStreaming and Its Prelimianry Experimental Results
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发表时间：
2005
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通讯作者：
Xinyan Zhang;Jiangchuan Liu;Bo Li
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作者：
Xinyan Zhang;Jiangchuan Liu;Bo Li
使用点对点方案传播媒体数据是一个有吸引力的想法;然而，目前还不清楚这项技术是否真的可以在全球范围内向大量用户提供实时媒体。本文提出了一个实证研究的CoolStreaming，一个数据驱动的覆盖网络的实时流媒体。CoolStreaming的核心操作非常简单：每个节点定期与一组合作伙伴交换数据可用性信息，并从一个或多个合作伙伴检索不可用的数据，或向合作伙伴提供可用的数据。我们已经广泛评估了CoolStreaming在真实的互联网环境中的性能。我们的实验，涉及超过10，000个不同的用户，表明CoolStreaming可以实现相当好的流媒体质量与全球分布的用户，即使在强大的网络条件下。与此同时，我们提出了一些有趣的意见，从这些大规模的测试。最后，我们对p2p流媒体的未来发展提出了一些建议
It is an attractive idea to spread media data using a peer-to-peer scheme; however it remains unclear whether this technology can really deliver real-time media to a large number of users in global scale. This paper presents an empirical study on CoolStreaming, a Data-driven Overlay Network for live media streaming. The core operations in CoolStreaming are very simple: every node periodically exchanges data availability information with a set of partners, and retrieves unavailable data from one or more partners, or supplies available data to partners. We have extensively evaluated the performance of CoolStreaming over real Internet environment. Our experiments, involving more than 10,000 distinct users, demonstrate that CoolStreaming can achieve quite good streaming quality with globally distributed users, even under formidable network conditions. Meanwhile, we present several interesting observations from these large-scale tests. Finally, we offer some directions toward the future development of p2p media streaming