Receiver driven rate adaptation for wireless multimedia applications

  • Authors:
  • Daniel Havey;Roman Chertov;Kevin Almeroth

  • Affiliations:
  • UCSB;The Aerospace Corporation;UCSB

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

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Abstract

Streaming video over the Internet to wireless mobile devices has seen a tremendous increase in popularity amongst users. Recent improvements in infrastructure have made the delivery of video over wireless a reality. However, user demand for high definition video streams promises to quickly devour the bandwidth provided by these improvements. There has been extensive work to solve these problems. However, recent advancements at the application and transport layers have made possible the development of new methods that can improve throughput in existing HTTP/TCP infrastructure. In this paper we present a novel client driven application layer rate adaptation mechanism. Our solution can achieve significant throughput increases as compared to a standard rate adaptive HTTP/TCP video stream operating over a wireless link. In addition it operates with standard HTTP/TCP video servers and requires no in-network modifications or kernel changes at the client. We demonstrate the performance improvements of our proposed system through both emulation and deployment on a wireless mesh network in South Africa.