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arXiv 0704.3228cs.NIcs.MM
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P2P IPTV流量的特征:标度分析

Characterization of P2P IPTV Traffic: Scaling Analysis

Thomas Silverston, Olivier Fourmaux, Kave Salamatian

摘要:

P2P网络电视应用是在互联网上兴起的,并将在未来得到广泛应用。预计P2P IPTV将有助于增加整体互联网流量。在这种情况下,重要的是要衡量P2P IPTV对网络的影响,并描述这种流量。在2006年世界杯期间,我们进行了广泛的测量活动。我们测量了最流行的P2P IPTV应用程序(即PPLive、PPStream、SOPCast和TVAnts)播放游戏所产生的网络流量。从采集的数据出发,利用小波变换的方法对不同时间尺度下的P2P IPTV流量结构进行了分析。据我们所知,这是第一项工作,它提出了一个完整的多尺度分析的P2P IPTV流量。结果表明,TCP流量的尺度特性呈现周期性,而UDP流量的尺度特性是平稳的,并导致长距离依赖特性。对于所有应用程序,下载流量具有与上传流量不同的特性。信令流量对下载流量有显著影响,但对上传流量的影响可以忽略不计。要设计准确的P2P IPTV流量模型,必须考虑到流量的两边及其粒度。

英文摘要:

P2P IPTV applications arise on the Internet and will be massively used in the future. It is expected that P2P IPTV will contribute to increase the overall Internet traffic. In this context, it is important to measure the impact of P2P IPTV on the networks and to characterize this traffic. Dur- ing the 2006 FIFA World Cup, we performed an extensive measurement campaign. We measured network traffic generated by broadcasting soc- cer games by the most popular P2P IPTV applications, namely PPLive, PPStream, SOPCast and TVAnts. From the collected data, we charac- terized the P2P IPTV traffic structure at different time scales by using wavelet based transform method. To the best of our knowledge, this is the first work, which presents a complete multiscale analysis of the P2P IPTV traffic. Our results show that the scaling properties of the TCP traffic present periodic behavior whereas the UDP traffic is stationary and lead to long- range depedency characteristics. For all the applications, the download traffic has different characteristics than the upload traffic. The signaling traffic has a significant impact on the download traffic but it has negligible impact on the upload. Both sides of the traffic and its granularity has to be taken into account to design accurate P2P IPTV traffic models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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