Aggregation methods for large-scale sensor networks
ACM Transactions on Sensor Networks (TOSN)
DirectStream: A directory-based peer-to-peer video streaming service
Computer Communications
A novel caching mechanism for peer-to-peer based media-on-demand streaming
Journal of Systems Architecture: the EUROMICRO Journal
Detecting malicious nodes in peer-to-peer streaming by peer-based monitoring
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
Improving QoS in bittorrent-like VoD systems
INFOCOM'10 Proceedings of the 29th conference on Information communications
Multi-channel live streaming in service overlay network
Multimedia Tools and Applications
P2PVR: A playback offset aware multicast tree for on-demand video streaming with VCR functions
Journal of Systems Architecture: the EUROMICRO Journal
A novel data replication mechanism in P2P VoD system
Future Generation Computer Systems
Multi-stream 3D video distribution over peer-to-peer networks
Image Communication
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Given its readily deployable nature and broad applications for digital entertainment, video streaming through overlay networks has received much attention recently. While a tree topology is often advocated due to its scalability, it suffers from discontinuous playback under highly dynamic network environments. For on-demand streaming, the asynchronicity among client requests further aggravates the problem. On the other hand, gossip protocols using random message dissemination, though robust, fail to meet the real-time constraints for streaming applications. In this paper, we propose TAG, a Tree-Assisted Gossip protocol that addresses the above issues. TAG adopts a tree structure with time indexing to accommodate asynchronous requests, and an efficient pull-based gossip algorithm to mitigate the impact of network dynamicity. It seamlessly integrates these two approaches and realizes their best features, namely, low delay with a regular tree topology, and robust delivery with smart switching among multiple paths, thus making effective use of the available bandwidth in the network. We evaluate the performance of TAG under various settings, and the results demonstrate that it is quite robust in the presence of local and global bandwidth fluctuations. As compared to pure tree-based overlay VOD system, it achieves much lower and stable segment missing rates, even under highly dynamic network conditions.