Shaping HTTP adaptive streams for a better user experience

  • Authors:
  • Rémi Houdaille;Stéphane Gouache

  • Affiliations:
  • Technicolor, Cesson-Sévigné cedex;Technicolor, Cesson-Sévigné cedex

  • Venue:
  • Proceedings of the 3rd Multimedia Systems Conference
  • Year:
  • 2012

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Abstract

With increasing audio/video service consumption through unmanaged IP networks, HTTP adaptive streaming techniques have emerged to handle bandwidth limitations and variations. But while it is becoming common to serve multiple clients in one home network, these solutions do not adequately address fine tuned quality arbitration between the multiple streams. While clients compete for bandwidth, the video suffers unstable conditions and/or inappropriate bit-rate levels. We hereby experiment a mechanism based on traffic chapping that allow bandwidth arbitration to be implemented in the home gateway, first determining desirable target bit-rates to be reached by each stream and then constraining the clients to stay within their limits. This enables the delivery of optimal quality of experience to the maximum number of users. This approach is validated through experimentation, and results are shown through a set of objective measurement criteria.