In-Network Support For Over-The-Top Video Quality of Experience

TL;DRAbstract

Abstract—This paper discusses the effects of the network conges-tion on the goodness of a streaming video session and proposes a solution that the network itself can adopt to recover from the possible Quality of Experience degradation. We consider a Broadband Access Network scenario, where congestion is most likely to occur in current communication networks. In particular, we concentrate on the Asymmetric digital subscriber line (ADSL) technology, which is predominant in the last-mile link toward the user machine. The proposed solution is based on an on-line heuristic evaluation of the mismatch between the bandwidth requirements of the video and the throughput actually offered in the bottleneck link. When a possible Quality of Experience degradation is observed, our tool reacts by limiting the concurrent traffic. The YouTube application is used as a reference throughout the entire paper due to its wide popularity. Moreover, High Definition videos are mainly considered as they are the m

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