A peering architecture for ubiquitous IP multicast streaming

  • Authors:
  • C. K. Yeo;B. S. Lee;M. H. Er

  • Affiliations:
  • Nanyang Technological University, Nanyang Avenue, S 639798, Republic of Singapore;Nanyang Technological University, Nanyang Avenue, S 639798, Republic of Singapore;Nanyang Technological University, Nanyang Avenue, S 639798, Republic of Singapore

  • Venue:
  • ACM SIGOPS Operating Systems Review
  • Year:
  • 2002

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Abstract

IP Multicast has been widely used for the distribution of real-time video. However, a large portion of the Internet is not multicast-enabled. Such networks rely on static relays and static tunnels to support video streaming. Being static, the streaming cannot readily adjust to the changing network conditions. This paper proposes an application level overlay using peering technology for seamless ubiquitous multimedia streaming across both multicast and unicast networks. The overlay comprises an auto-configurable tree of dynamic client relays incorporating a lightweight gossip mechanism to monitor prevailing network conditions and to improve the tree robustness. Clients can dynamically switch to other parents if they experience a poor QoS. Experimental results show that the overlay provides much better quality delivery than conventional unicast relay services.