DAB: Dynamic and Agile Buffer-control for Streaming Videos on Mobile Devices

This paper studies the video buffer control for streaming video data to mobile devices. We target on the design challenge when the wireless link quality is dynamic due to the the environmental factors or user mobility. We develop a Dynamic and Agile bufforcontrol scheme, called DAB, that adaptively adjusts the video buffer size based on the measurements of the signal strength (RSSI) and accelerometer on the smartphone. Our goal is to keep a smooth playback while deliver as little data as possible to the enduser in order to save bandwidth cost. We have implemented our solution on Android platform and evaluated it with experiments. Compared to traditional video buffer schemes, our solution DAB significantly improves the performance in terms of the quality of playback and the buffer efficency. c © 2014 The Authors. Published by Elsevier B.V. Selection and peer-review under responsibility of Elhadi M. Shakshuki.