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期刊论文

Delving into Internet Streaming Media Delivery: A Quality and Resource Utilization Perspective

肖臻Lei Guo Enhua Tan Songqing Chen Zhen Xiao Oliver Spatscheck and Xiaodong Zhang

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摘要/描述

Modern Internet streaming services have utilized various techniques to improve the quality of streaming media deliv-ery. Despite the characterization of media access patterns and user behaviors in many measurement studies, few stud-ies have focused on the streaming techniques themselves, particularly on the quality of streaming experiences they of-fer end users and on the resources of the media systems that they consume. In order to gain insights into cur-rent streaming services and thus provide guidance on de-signing resource-efficient and high quality streaming media systems, we have collected a large streaming media work-load from thousands of broadband home users and business users hosted by a major ISP, and analyzed the most com-monly used streaming techniques such as automatic protocol switch, Fast Streaming, MBR encoding and rate adaptation. Our measurement and analysis results show that with these techniques, current streaming systems tend to over-utilize CPU and bandwidth resources to provide better services to end users, which may not be a desirable and effective way to improve the quality of streaming media delivery. Moti-vated by these results, we propose and evaluate a coordina-tion mechanism that effectively takes advantage of both Fast Streaming and rate adaptation to better utilize the server and Internet resources for streaming quality improvement.

【免责声明】以下全部内容由[肖臻]上传于[2010年10月28日 14时20分24秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。

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