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	A general PID-based rate adaptation approach for TCP-based live streaming over mobile networks
	Wang, Jiexi ; Meng, Shengbin ; Sun, Jun ; Quo, Zongming
	2016
英文摘要	TCP-based application-layer protocols are increasingly applied to commercial live video streaming systems. However, in unstable mobile networks, the throughput of TCP may fluctuate rapidly due to its transmission mechanism, causing undesired playback interruption. In this paper, we propose a general application-layer rate adaptation approach to cope with the variability in TCP throughput. We analyze the transmission process and evaluate the network condition using a multi-buffer model. With information obtained in this model, an algorithm based on the Proportional-Integral-Derivative (PID) controller is proposed to dynamically adjust the video bitrate in response to the throughput change. We have implemented an experimental mobile live streaming system employing this approach and achieved a significant improvement in playback continuity and bandwidth utilization. ? 2016 IEEE.; EI; 2016-August
语种	英语
出处	2016 IEEE International Conference on Multimedia and Expo, ICME 2016
DOI标识	10.1109/ICME.2016.7552948
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/449405]
专题	计算机科学技术研究所
推荐引用方式 GB/T 7714	Wang, Jiexi,Meng, Shengbin,Sun, Jun,et al. A general PID-based rate adaptation approach for TCP-based live streaming over mobile networks. 2016-01-01.

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