Optimally efficient multicast in structured peer-to-peer networks

  • Authors:
  • Dirk Bradler;Jussi Kangasharju;Max Mühlhäuser

  • Affiliations:
  • University of Technology Darmstadt, Darmstadt, Germany;University of Helsinki, Helsinki, Finland;University of Technology Darmstadt, Darmstadt, Germany

  • Venue:
  • CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
  • Year:
  • 2009

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Abstract

The Distributed Tree Construction (DTC) algorithm is designed for optimally efficient multicast tree construction over structured peer-to-peer networks. It achieves this by creating a spanning tree over the peers in the multicast group, using only information available locally on each peer. Furthermore, we show that the tree depth has the same upper bound as a regular DHT lookup which in turn guarantees fast and responsive runtime behavior. Our DTC algorithm is DHT-agnostic and works with most existing DHTs. We evaluate the performance of DTC over several DHTs by comparing the performance to existing application-level multicast solutions, we show that DTC sends 30-250% fewer messages than common solutions.