Abstract | ||
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Video multicast is a challenging problem due to the heterogeneous and best-effort nature of the Internet. In this paper, we present a novel video multicast framework that exploits the potential of object scalability offered by MPEG-4. Specifically, we introduce the concept of object transmission proxy (OTP), which filters incoming streams using object-based bandwidth adaptation to meet dynamic network conditions. Multiple OPTs can form an overlay network that interconnects diverse multicast islands with semi-uniform demands within each single island. We concur with the wisdom that an application best knows the utility of its data. Hence, the bandwidth-adaptation algorithm for the OTPs adaptively allocates bandwidth among video objects according to their respective utilities and then performs application-level filtering based on an effective stream classification and packetization scheme. Extensive simulation results demonstrate that our framework has substantial performance improvement over conventional bandwidth-adaptation schemes. It is particularly suitable for object-based video multicasting where the objects are of different importance. |
Year | DOI | Venue |
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2005 | 10.1109/TCSVT.2004.825532 | IEEE Trans. Circuits Syst. Video Techn. |
Keywords | Field | DocType |
object transmission proxy,video signal processing,video multicast,dynamic network condition,video multicasting,object scalability,utility function,diverse multicast island,bandwidth allocation,index terms—object scalability,proxy-assisted adaptation framework,video filtering,overlay network,video object,conventional bandwidth-adaptation scheme,internet,object video multicasting,packetization scheme,filtering theory,novel video multicast framework,bandwidth-adaptation algorithm,packetization,video multicasting.,multicast communication,object-based video,indexing terms,bandwidth,best effort,scalability | Dynamic network analysis,Bandwidth allocation,Computer science,Computer network,Video tracking,Bandwidth (signal processing),Multicast,Overlay network,The Internet,Scalability,Distributed computing | Journal |
Volume | Issue | ISSN |
15 | 3 | 1051-8215 |
Citations | PageRank | References |
4 | 0.49 | 20 |
Authors | ||
5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Jiangchuan Liu | 1 | 4340 | 310.86 |
Baochun Li | 2 | 9416 | 614.20 |
Huai-Rong Shao | 3 | 188 | 16.60 |
Wenwu Zhu | 4 | 4399 | 300.42 |
Ya-Qin Zhang | 5 | 3684 | 320.41 |