Priority ordering and packetization for scalable video multicast with network coding

Authors:
Song Xiao;Hui Wang;C.-C. Jay Kuo
Affiliations:
ISN key Lab, Xidian University, Xi'an, Shaanxi, China and Ming Hsieh Dept. of Electrical Engineering, University of Southern California, Los Angeles, CA;Ming Hsieh Dept. of Electrical Engineering, University of Southern California, Los Angeles, CA;Ming Hsieh Dept. of Electrical Engineering, University of Southern California, Los Angeles, CA
Venue:
PCM'07 Proceedings of the multimedia 8th Pacific Rim conference on Advances in multimedia information processing
Year:
2007

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Abstract

The integration of scalable video representation and network coding (NC) offers an excellent solution to robust and flexible video multicast over IP networks. In this work, we examine one critical component in this system, i.e. video priority ordering and packetization at the source of the multicast tree. First, a GOP-adaptive layer-based packet priority ordering algorithm is proposed to allow flexible prioritized video transmission with unequal error protection. Then, a packetization scheme tailored to NC delivery is discussed. Simulation results are given to demonstrate that the proposed algorithms offer better performance in video quality and bandwidth efficiency as compared the SNR-based packetization method.