BUFFER-BASED CONTROL THEORETIC APPROACH FOR DYNAMICALLY HTTP STREAMING

Dynamic adaptive streaming over HTTP (DASH) has recently been widely deployed in the Internet. It, however, does not impose any adaptation logic for selecting the quality of video fragments requested by clients. In this challenge, we have designed a novel rate adaptation scheme for Dynamic HTTP Streaming, by which, lowstart-up time, continuous and smooth video playback, and high bandwidth utilization are obtained. The algorithm is mainly based on our previous work [1] [2] that a PD controller are adopted to guide the rate adaptation. Moreover, we further improve the performance of start-up delay by fast-start approach and dynamic buffer size adjustment. The numerous experiment results have demonstrated the good performance of our designed rate adaptation compared with the Bitdash [3].CPCI-S(ISTP)zhangxg@pku.edu.c