Literature Database Entry

draexler2015smarterphones


Martin Dräxler, Johannes Blobel, Philipp Dreimann, Stefan Valentin and Holger Karl, "SmarterPhones: Anticipatory Download Scheduling for Wireless Video Streaming," Proceedings of International Conference on Networked Systems (NetSys 2015), Cottbus, Germany, March 2015, pp. 1-8.

Abstract

Video streaming is in high demand by mobile users. In cellular networks, however, the unreliable wireless channel leads to two major problems. Poor channel states degrade video quality and interrupt the playback when a user cannot sufficiently fill its local playout buffer: buffer underruns occur. In contrast, good channel conditions cause common greedy buffering schemes to buffer too much data. Such over-buffering wastes expensive wireless channel capacity. Assuming that we can anticipate future data rates, we plan the quality and download time of video segments ahead. This anticipatory download scheduling avoids buffer underruns by downloading a large number of segments before a drop in available data rate occurs, without wasting wireless capacity by excessive buffering. We developed a practical anticipatory scheduling algorithm for segmented video streaming protocols (e.g., HLS or MPEG DASH). Simulation results and testbed measurements show that our solution essentially eliminates playback interruptions without significantly decreasing video quality.

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Martin Dräxler
Johannes Blobel
Philipp Dreimann
Stefan Valentin
Holger Karl

BibTeX reference

@inproceedings{draexler2015smarterphones,
    author = {Dr{\"{a}}xler, Martin and Blobel, Johannes and Dreimann, Philipp and Valentin, Stefan and Karl, Holger},
    title = {{SmarterPhones: Anticipatory Download Scheduling for Wireless Video Streaming}},
    booktitle = {International Conference on Networked Systems (NetSys 2015)},
    pages = {1-8},
    year = {2015},
    month = {March},
    address = {Cottbus, Germany},
    publisher = {IEEE},
    doi = {10.1109/NetSys.2015.7089073},
   }
   
   

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