Name
Title | ||
|---|---|---|
Joint Source and Flow Optimization for Scalable Video Multirate Multicast Over Hybrid Wired/Wireless Coded Networks |
Abstract | ||
|---|---|---|
This paper aims to optimize the overall video quality and traffic performance for multi-rate video multicast over hybrid wired/wireless networks. In order to perform layered utility maximization over tiered networks, we propose a joint source-network flow optimization scheme where individual layers of the scalable video stream are imposed on their optimal multicast paths and associated rates for the highest sustainable layered video quality with minimum costs. It sufficiently guarantees that each destination node accesses progressive layered stream in an incremental order, considers network coding across overlapping paths to destination nodes for decent multicast capacity, and addresses the link contention problem during wireless transmission. We formulate the problem into convex programming with the objective to minimize the total rate-distortion variations between layers. Using primal decomposition and the primal-dual approach, we develop a decentralized algorithm with two levels of optimization. The numerical and packet-level results compare extensive performance under different control conditions over coded and non-coded hybrid networks. It demonstrates that the proposed algorithm could actually achieve the max-flow throughput and provide better video quality with optimal layered access for heterogeneous receivers. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/TCSVT.2011.2129070 | IEEE Trans. Circuits Syst. Video Techn. |
Keywords | Field | DocType |
highest sustainable layered video,optimisation,hybrid wired/wireless coded networks,heterogeneous receivers,optimal layered access,overall video quality,multi-rate video multicast,video quality,traffic performance,decentralized algorithm,flow optimization,joint source,tiered networks,layered utility maximization,scalable video multirate multicast,multi-rate multicast,convex programming,resource allocation,destination node,scalable video coding,hybrid wired,wireless channels,video coding,wireless transmission,scalable video stream,decent multicast capacity,joint source-network flow optimization,progressive layered stream,multicast capacity,rate-distortion,multicast communication,network coding,wireless coded networks,wireless networks,encoding,indexing terms,wireless network,static var compensator,optimization,network flow | Flow network,Linear network coding,Wireless network,Computer science,Computer network,Throughput,Multicast,Convex optimization,Video quality,Scalable Video Coding | Journal |
Volume | Issue | ISSN |
21 | 5 | 1051-8215 |
Citations | PageRank | References |
3 | 0.39 | 26 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Chenglin Li | 1 | 116 | 17.93 |
| Hongkai Xiong | 2 | 512 | 82.84 |
| J. Zou | 3 | 203 | 35.51 |
| Zhihai He | 4 | 1544 | 114.45 |