SmarterPhones: Anticipatory Download Scheduling for Segmented Wireless Video Streaming
نویسندگان
چکیده
Video streaming is in high demand by mobile users, as recent studies indicate. But in mobile networks fluctuating available data rates can degrade video quality and interrupt video playback. Assuming that we can predict data rates, we developed an anticipative approach to plan the quality and download time of the video segments ahead. This anticipatory scheduling avoids playback interruptions by downloading segments before a data rate drop occurs, without wasting wireless capacity by excessive buffering. We present how this anticipatory scheduling can be implemented and show a testbed implementation as well as simulation results. The results show that our solution essentially eliminates playback interruptions without significantly decreasing video quality.
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