A distributed scheme for autonomous service composition

  • Authors:
  • Stephen Herborn;Yoann Lopez;Aruna Seneviratne

  • Affiliations:
  • University of New South Wales;National ICT Australia;National ICT Australia

  • Venue:
  • Proceedings of the first ACM international workshop on Multimedia service composition
  • Year:
  • 2005

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Abstract

Some multimedia content may be divisible into independently routable components, e.g. audio and video flows. As a result media content adaptation services may be linked in serial, parallel and hybrid configurations to form a directed, acyclic graph of composed services. We specify a distributed service path selection scheme for the construction of composed directed service graphs, which integrates a peer-to-peer routing algorithm, a service discovery mechanism, and abstract scheme for content description. Our approach enables the autonomous selection of converging and non-converging service graphs, which enable media content to be separated into sub-components and delivered to separate devices, applications or network interfaces. Our content, client and service description scheme focuses on addressing mobility, multi-device, and multi-homing requirements. We include results of simulation designed to study the performance of several service discovery options, and present initial conclusions based on our findings.