A testbed to compare Dynamic Adaptive Streaming over HTTP network configurations

Author: Peder Thorup

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Streaming video over the internet has become vastly popular over the
past decade. In recent years there have been a shift towards using the
Hypertext Transfer Protocol (HTTP) for delivery of layered, segmented,
video content. These solutions go under the name HTTP Adaptive bit-rate
Streaming (HAS). One of the streaming solutions using this is the recent
international streaming standard Dynamic Adaptive Streaming over HTTP
(DASH). The increased popularity of HAS has significantly increased the
chance that multiple HAS clients will share the same network bottleneck.
Studies show that this can introduce unwanted network characteristics,
but as of today there are no good way of running realistic evaluations of
how different network configurations will impact HAS players sharing the
same bottleneck. To solve this, we have set up a testbed capable of running
automated streaming sessions, and have performed three experiments
using the DASH industry forum’s reference player, DASH.js, to present the
capabilities of the testbed.