SPAD: A distributed middleware architecture for QoS enhanced alternate path discovery

  • Authors:
  • Thierry Rakotoarivelo;Patrick Sénac;Aruna Seneviratne;Michel Diaz

  • Affiliations:
  • School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, NSW 2052, Australia and Department of Applied Mathematics and Computer Engineering, ENSICA, Place Em ...;Department of Applied Mathematics and Computer Engineering, ENSICA, Place Emile Blouin, 31056 Toulouse, France and LAAS-CNRS, 7 avenue du Colonel Roche, 31077 Toulouse, France;National ICT Australia, Locked Bag 9013, Alexandria, NSW 1435, Australia;LAAS-CNRS, 7 avenue du Colonel Roche, 31077 Toulouse, France

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2007

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Abstract

In the next generation Internet, the network will evolve from a plain communication medium into one that provides endless services to the users. These services will be composed of multiple cooperative distributed application elements. We name these services overlay applications. The cooperative application elements within an overlay application will build a dynamic communication mesh, namely an overlay association. The Quality of Service (QoS) perceived by the users of an overlay application greatly depends on the QoS experienced on the communication paths of the corresponding overlay association. In this paper, we present super-peer alternate path discovery (SPAD), a distributed middleware architecture that aims at providing enhanced QoS between end-points within an overlay association. To achieve this goal, SPAD provides a complete scheme to discover and utilize composite alternate end-to-end paths with better QoS than the path given by the default IP routing mechanisms.