Network-layer fairness for adaptive video streams

Ahmed Mansy, Marwan Fayed, Mostafa Ammar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

39 Citations (Scopus)


Recent studies observe that competing adaptive video streaming applications generate flows that lead to instability, under-utilization, and unfairness in bottleneck link sharing within the network. Additional measurements suggest there may also be a negative impact on users' perceived quality of service as a consequence. While it may be intuitive to resolve application-generated issues at the application layer, in this paper we explore the merits of a network layer solution. We are motivated by the observation that traditional network-layer metrics associated with throughput, loss, and delay are inadequate to the task. To bridge this gap we present a network-layer QoS framework for adaptive streaming video fairness that reflect the video user's quality of experience (QoE). We begin first by deriving a new measure to describe user-level fairness among competing flows, one that reflects the dynamics between the video encoding and its mapping to a screen with a given size and resolution. We then design and implement our framework in VHS (Video-Home-Shaper) to evaluate performance in the home's last access hop where this problem is known to exist. Experiments using a variety of devices, O/S platforms, and viewing screens demonstrate the merits of using video QoE as a basis for fair bandwidth sharing.

Original languageEnglish
Title of host publicationProceedings of 2015 14th IFIP Networking Conference, Networking'2015
EditorsRahim Kacimi, Zoubir Mammeri
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages9
ISBN (Electronic)9783901882685
Publication statusPublished - 2 Jul 2015
Event2015 14th IFIP Networking Conference, IFIP Networking 2015 - Toulouse, France
Duration: 20 May 201522 May 2015
Conference number: 14


Conference2015 14th IFIP Networking Conference, IFIP Networking 2015
Abbreviated titleNetworking 2015
Internet address


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