On peer-to-peer relays for VoIP applications

  • Authors:
  • Yan Ding;Xin Cheng;Jiangchuan Liu

  • Affiliations:
  • School of Computing Science, Simon Fraser University, Burnaby, British Columbia, Canada;School of Computing Science, Simon Fraser University, Burnaby, British Columbia, Canada;School of Computing Science, Simon Fraser University, Burnaby, British Columbia, Canada

  • Venue:
  • ICICS'09 Proceedings of the 7th international conference on Information, communications and signal processing
  • Year:
  • 2009

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Abstract

As VoIP applications become increasingly popular, voice quality remains the user's biggest concern. Peer-to-Peer network can potentially obtain qualified relay nodes (QRNs) to make path switching when the QoS of a default path degrades. Locating quality relay nodes rapidly and inexpensively however is a very challenging task. In this paper, we design and develop a sophisticated system to take snapshots of network status among PlanetLab nodes. We collect the 1-hop QRNs of all low quality sessions (LQSs) in a network snapshot. Based on collected data, we evaluate the state-of-the-art relay node locating approaches (e.g. EDR, EBP and ASAP).