Power efficient video multipath transmission over wireless multimedia sensor networks
Mobile Networks and Applications
Content-aware distortion-fair video streaming in congested networks
IEEE Transactions on Multimedia - Special issue on quality-driven cross-layer design for multimedia communications
Liveness enforcing supervision of video streaming systems using nonsequential Petri nets
IEEE Transactions on Multimedia
Multiple description coding based video multicast over heterogeneous wireless ad hoc networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Effective video streaming using mesh P2P with MDC over MANETs
Journal of Mobile Multimedia
Priority-based selective H.264 SVC streaming over erroneous converged networks
Multimedia Tools and Applications
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The delivery of quality video service often requires high bandwidth with low delay or cost in network transmission. Current routing protocols such as those used in the Internet are mainly based on the single-path approach (e.g., the shortest-path routing). This approach cannot meet the end-to-end bandwidth requirement when the video is streamed over bandwidth-limited networks. In order to overcome this limitation, we propose multipath routing, where the video takes multiple paths to reach its destination(s), thereby increasing the aggregate throughput. We consider both unicast (point-to-point) and multicast scenarios. For unicast, we present an efficient multipath heuristic (of complexity O(|V|3)), which achieves high bandwidth with low delay. Given a set of path lengths, we then present and prove a simple data scheduling algorithm as implemented at the server, which achieves the theoretical minimum end-to-end delay. For a network with unit-capacity links, the algorithm, when combined with disjoint-path routing, offers an exact and efficient solution to meet a bandwidth requirement with minimum delay. For multicast, we study the construction of multiple trees for layered video to satisfy the user bandwidth requirements. We propose two efficient heuristics on how such trees can be constructed so as to minimize the cost of their aggregation subject to a delay constraint.