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)

Abstract

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.
Pages1-9
Number of pages9
ISBN (Electronic)9783901882685
DOIs
Publication statusPublished - 2 Jul 2015
Event2015 14th IFIP Networking Conference, IFIP Networking 2015 - Toulouse, France
Duration: 20 May 201522 May 2015
Conference number: 14
https://www.irit.fr/networking2015/

Conference

Conference2015 14th IFIP Networking Conference, IFIP Networking 2015
Abbreviated titleNetworking 2015
Country/TerritoryFrance
CityToulouse
Period20/05/1522/05/15
Internet address

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