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Issue No. 08 - August (2010 vol. 21)
ISSN: 1045-9219
pp: 1103-1116
Ye Tian , University of Science and Technology of China, Hefei
Hong Shen , University of Science and Technology of China, Hefei
Kam-Wing Ng , The Chinese University of Hong Kong, Hong Kong
Reliability of tree-like multicast overlays caused by nodes' abrupt failures is considered as one of the major problems for the Internet application-layer media streaming service [CHECK END OF SENTENCE]. In this paper, we address this problem by designing a distributed and light-weighted protocol named the instantaneous reliability oriented protocol (IRP). Unlike most of existing empirical solutions, we first define the overlay reliability problem formally, and propose a protocol containing a node joining algorithm (IRP-Join), a node preemption algorithm (IRP-Preempt), and a node switching algorithm (IRP-Switch) for reactively constructing and repairing the overlay, as well as proactively maintaining the overlay. With the formal problem presentation, we set up a paradigm for solving the overlay reliability problem by theoretically proving the effectiveness of our algorithms. Moreover, by comparing IRP with existing solutions via simulation-based experiments and real-world deployment, we show that IRP achieves a better reliability, while incurs fewer structural adjustments on the multicast overlay, thus, providing a superior overall performance.
Reliability, multicast, algorithm/protocol design and analysis.

K. Ng, Y. Tian and H. Shen, "Improving Reliability for Application-Layer Multicast Overlays," in IEEE Transactions on Parallel & Distributed Systems, vol. 21, no. , pp. 1103-1116, 2009.
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