End-To-End Programmability for QOS Controlled Mobility in ATM Networks and their Wireless Extension

  • Andrew T. Campbell


The main Quality of Service (QOS) challenge in a combined wireline/wireless ATM network derives from the combination of multi-rate multimedia connections with mobility. A connection with certain capacity reserved at a particular cell may have to be re-routed to another when the mobile device changes its location. The new path to the desired location may not have the original required capacity. Therefore re-negotiation of resources allocated to the connection is needed. At the same time, the flow (e.g., audio or video) should be transported and presented ‘seamlessly’ to the destination device with a smooth change of perceptual quality. In this paper we describe a distributed systems platform which takes end-to-end programmability for QOS controlled ATM mobility as its primary design goal. We use the term controlled QOS to distinguish it from hard QOS guarantees offered by fixed ATM networks. Implicit in the term is the notion that mobile flows can be represented as multi-resolution scalable flows at the mobile terminal.


Mobile Terminal Mobility Management Enhancement Layer Virtual Path Video Flow 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Andrew T. Campbell
    • 1
  1. 1.Department of Electrical Engineering and Center for Telecommunications ResearchColumbia UniversityNew YorkUSA

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