A scheduling framework for adaptive video delivery over cellular networks

Jiasi Chen, Rajesh Mahindra, Mohammad A. Khojastepour, Sampath Rangarajan, Mung Chiang

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

104 Scopus citations

Abstract

As the growth of mobile video traffic outpaces that of cellular network speed, industry is adopting HTTP-based adaptive video streaming technology which enables dynamic adaptation of video bit-rates to match changing network conditions. However, recent measurement studies have observed problems in fairness, stability, and efficiency of resource utilization when multiple adaptive video flows compete for bandwidth on a shared wired link. Through ex- periments and simulations, we confirm that such undesirable be- havior manifests itself in cellular networks as well. To overcome these problems, we design an in-network resource management framework, AVIS, that schedules HTTP-based adaptive video flows on cellular networks. AVIS effectively manages the resources of a cellular base station across adaptive video flows. AVIS also pro- vides a framework for mobile operators to achieve a desired bal- Ance between optimal resource allocation and user quality of expe- rience. AVIS has three key differentiating features: (1) It optimally computes the bit-rate allocation for each user, (2) It includes a scheduler and per-flow shapers to enforce bit-rate stability of each flow and (3) It leverages the resource virtualization technique to separate resource management of adaptive video flows from reg- ular video flows. We implement a prototype system of AVIS and evaluate it on both a WiMAX network testbed and a LTE system simulator to show its efficacy and scalability.

Original languageEnglish (US)
Title of host publicationMobiCom 2013 - Proceedings of the 19th Annual International Conference on Mobile Computing and Networking
Pages389-400
Number of pages12
DOIs
StatePublished - Nov 11 2013
Event19th Annual International Conference on Mobile Computing and Networking, MobiCom 2013 - Miami, FL, United States
Duration: Sep 30 2013Oct 4 2013

Publication series

NameProceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM

Other

Other19th Annual International Conference on Mobile Computing and Networking, MobiCom 2013
Country/TerritoryUnited States
CityMiami, FL
Period9/30/1310/4/13

All Science Journal Classification (ASJC) codes

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

Keywords

  • Adaptive streaming
  • Cellular networks
  • Proportional fairness
  • Qoe

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