Multi-user video streaming using unequal error protection network coding in wireless networks

Dejan Vukobratovic, Vladimir Stankovic

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Abstract

In this paper, we investigate a multi-user video streaming system applying unequal error protection (UEP) network coding (NC) for simultaneous real-time exchange of scalable video streams among multiple users. We focus on a simple wireless scenario where users exchange encoded data packets over a common central network node (e.g., a base station or an access point) that aims to capture the fundamental system behaviour. Our goal is to present analytical tools that provide both the decoding probability analysis and the expected delay guarantees for different importance layers of scalable video streams. Using the proposed tools, we offer a simple framework for design and analysis of UEP NC based multi-user video streaming systems and provide examples of system design for video conferencing scenario in broadband wireless cellular networks.
Original languageEnglish
Article number218
Number of pages7
JournalEURASIP Journal on Wireless Communications and Networking
Volume2012
DOIs
Publication statusE-pub ahead of print - 13 Jul 2012

Keywords

  • video streaming
  • network coding
  • wireless networks
  • wireless cellular networks

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