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Multimedia Tools and Applications

, Volume 13, Issue 3, pp 285–306 | Cite as

QoS Filtering and Resource Reservation in an Internet Environment

  • Andreas Mauthe
  • Francisco Garcia
  • David Hutchison
  • Nicholas Yeadon
Article

Abstract

Multimedia group applications often operate in an environment where the various participants are located on systems and communication links with different capabilities. Mechanisms are required that ensure full-quality media for high-performance workstations but lower-quality media for playout at low-end systems. QoS filters have been proposed as a way to adapt QoS to the user specified level by changing the structure of a media stream in a well defined way. Resource reservation and QoS filter instantiation should be closely integrated since both represent one particular aspect of the provision of individualistic QoS for heterogeneous users in multipeer communications. The Internet reservation protocol RSVP is receiver oriented and allows each receiver to specify its resource requirements. However, no actual mechanisms are defined that adapt the data stream to the receiver specified QoS requirements.In this paper we present an enhanced version of RSVP (called RSVP++) that integrates resource reservation and QoS filter control. In order to achieve this integration we extend the RSVP functional model and define a new QoS service class. RSVP++ can coexist with common RSVP systems, thus, openness and interoperability of the system are ensured.

QoS filtering media stream adaptation resource reservation RSVP heterogeneous multipeer communications 

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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Andreas Mauthe
    • 1
  • Francisco Garcia
    • 2
  • David Hutchison
    • 3
  • Nicholas Yeadon
    • 4
  1. 1.Tecmath AG, KaiserslauternGermany
  2. 2.Agilent LaboratoriesEdinburghUK
  3. 3.Computing DepartmentLancaster UniversityLancasterUK
  4. 4.BBC Research & DevelopmentTadworthUK

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