Abstract
As video streaming accounts for the majority of Internet traffic, monitoring its quality is of importance to both Over the Top (OTT) providers as well as Internet Service Providers (ISPs). While OTTs have access to their own analytics data with detailed information, ISPs often have to rely on automated network probes for estimating streaming quality, and likewise, academic researchers have no information on actual customer behavior. In this paper, we present first results from a large-scale crowdsourcing study in which three major video streaming OTTs were compared across five major national ISPs in Germany. We not only look at streaming performance in terms of loading times and stalling, but also customer behavior (e.g., user engagement) and Quality of Experience based on the ITU-T P.1203 QoE model. We used a browser extension to evaluate the streaming quality and to passively collect anonymous OTT usage information based on explicit user consent. Our data comprises over 400,000 video playbacks from more than 2,000 users, collected throughout the entire year of 2019. The results show differences in how customers use the video services, how the content is watched, how the network influences video streaming QoE, and how user engagement varies by service. Hence, the crowdsourcing paradigm is a viable approach for third parties to obtain streaming QoE insights from OTTs.
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