P2P SVC-encoded video streaming based on network coding
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Scaling microblogging services with divergent traffic demands
Middleware'11 Proceedings of the 12th ACM/IFIP/USENIX international conference on Middleware
Elite: differentiating the playback lag for peer-assisted live video streaming
Proceedings of the 2012 IEEE 20th International Workshop on Quality of Service
Slead: low-memory, steady distributed systems slicing
DAIS'12 Proceedings of the 12th IFIP WG 6.1 international conference on Distributed Applications and Interoperable Systems
Scaling microblogging services with divergent traffic demands
Proceedings of the 12th International Middleware Conference
Self-* in Multimedia Communication Overlays
Computer Communications
Computer Networks: The International Journal of Computer and Telecommunications Networking
An autonomous topology management framework for QoS enabled P2P video streaming systems
Proceedings of the 8th International Conference on Network and Service Management
OSSim: a generic simulation framework for overlay streaming
Proceedings of the 2013 Summer Computer Simulation Conference
Resilient and underlay-aware P2P live-streaming
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Recently, application-layer overlay networks have been suggested as a promising solution for live video streaming over the Internet. To organize a multicast overlay, a natural structure is a tree, which, however, is known vulnerable to end-hosts dynamics. Data-driven approaches address this problem by employing a mesh structure, which enables data exchanges among multiple neighbors, and thus, greatly improves the overlay resilience. It unfortunately suffers from an efficiency-delay trade-off, because data have to be pulled from mesh neighbors by using extra notifications periodically. In this paper, we closely examine the contributions of overlay nodes, and argue that performance of a mesh overlay closely depends on a small set of stable backbone nodes. This is validated through a real trace study on PPLive, the largest commercial application-layer live streaming system to date. Motivated by this observation, we then suggest a novel collaborative tree-mesh design that leverages both mesh and tree structures. The key idea is to identify a set of stable nodes to construct a tree-based backbone, called treebone, with most of the data being pushed over this backbone. These stable nodes, together with others, are further organized through an auxiliary mesh overlay, which facilitates the treebone to accommodate node dynamics and fully exploit the available bandwidth between overlay nodes. This hybrid design, referred to as mTreebone, brings a series of unique and critical design challenges. In particular, the identification of stable nodes and seamless data delivery using both push and pull methods. In this paper, we present optimized solutions to these problems, which reconcile the two overlays under a coherent framework with controlled overhead. We evaluate mTreebone through both simulations and PlanetLab experiments. The results demonstrate the superior efficiency and robustness of this hybrid solution in both static and dynamic scenarios.