An Overlay for Ubiquitous Streaming over Internet

  • Authors:
  • Chai Kiat Yeo;Bu-Sung Lee;Meng Hwa Er

  • Affiliations:
  • -;-;-

  • Venue:
  • NETWORKING '02 Proceedings of the Second International IFIP-TC6 Networking Conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; and Mobile and Wireless Communications
  • Year:
  • 2002

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Abstract

Conventional distribution of real-time multimedia data uses multicasting or a series of relays and tunnels for unicast networks. The former is a capability not popularly enabled by a lot of networks while the static relays cannot readily adapt to changing network conditions and are potential bottlenecks in a heavily accessed system. This paper proposes a dynamic overlay framework for streaming multimedia data over heterogeneous networks. The overlay comprises a self-improving tree which is built from client relays on the fly and a lightweight server to manage the tree. The overlay provides a better QoS than conventional relays as it monitors the network and re-configures the tree to adapt to changing environments. Clients can switch parents for better QoS. The robustness of the tree is improved by using a spiral mechanism and failure of the lightweight server will not impact the data distribution functionality of the existing tree.