Improving reliability for application-layer multicast overlays

Ye Tian, Hong Shen, Kam Wing Ng

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


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 [1]. 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.

Original languageEnglish
Article number5374385
Pages (from-to)1103-1116
Number of pages14
JournalIEEE Transactions on Parallel and Distributed Systems
Issue number8
Publication statusPublished - 2010
Externally publishedYes


  • Reliability
  • algorithm/protocol design and analysis
  • multicast


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