Research
Multi-user video streaming using unequal error protection network coding in wireless networks
1 Department of Power, Electronics and Communication Engineering, University of Novi Sad, Trg D. Obradovića 6, Novi Sad, Serbia
2 Department of Electronic and Electrical Engineering, University of Strathclyde, 204 George Street, Glasgow, G1 1XW, UK
EURASIP Journal on Wireless Communications and Networking 2012, 2012:218 doi:10.1186/1687-1499-2012-218
Published: 13 July 2012Abstract
In this article, 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.
