基于3G LTE的YouTube服务性能仿真研究

2013 IEEE 14th International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM) Pub Date : 2013-06-04 DOI:10.1109/WoWMoM.2013.6583422

Jonathan Prados-Garzon, P. Ameigeiras, Jorge Navarro-Ortiz, J. López-Soler

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引用次数: 3

摘要

在本文中，我们通过动态网络模拟研究了YouTube服务在3G长期演进(LTE)上的性能。我们考虑TCP流量的LTE网络的典型配置和下载到个人电脑(PC)上的YouTube“Flash”视频的流量生成模型。此外，为了在仿真中获得更可靠的结果，获得了YouTube媒体服务器使用的TCP Cubic拥塞控制算法的主要配置参数。结果表明:用户在视频下载过程中的暂停次数受小区负载的影响较大，但暂停时长不受小区负载的影响;由于TCP适应链路的BDP，大多数包丢失发生在初始突发期间，并且，与节流阶段的包丢失不同，这些不依赖于无线电链路质量;并且在大多数情况下，用户不使用LTE接口中可实现的最大数据速率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Simulation-based performance study of YouTube service in 3G LTE

In this paper, we study the performance of the YouTube service over 3G Long Term Evolution (LTE) by means of dynamic network simulations. We consider a typical configuration of an LTE network for TCP traffic and the traffic generation model for YouTube `Flash' videos downloaded onto a personal computer (PC). Furthermore, in order to achieve more reliable results in the simulations, the main configuration parameters are obtained for TCP Cubic congestion control algorithm used by YouTube media servers. The results obtained show that: the number of pauses experimented by users during video download are heavily influenced by the cell load, but the same is not true for pause duration; most of the packet losses occur during initial burst due to the TCP adaptation to the BDP of the link, and, unlike packet losses during throttling phase, these are not depend on radio link quality; and in most cases the user do not use the maximum data rate achievable in the LTE interface.

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来源期刊

2013 IEEE 14th International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM)

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