A Probabilistic Scheme for Hierarchical QoS Routing

  • Authors:
  • Donna Ghosh;Raj Acharya

  • Affiliations:
  • State University of New York at Buffalo;State University of New York at Buffalo

  • Venue:
  • ICON '01 Proceedings of the 9th IEEE International Conference on Networks
  • Year:
  • 2001

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Abstract

Quality of Service (QoS) routing consists of two parts:(a) collecting network QoS resource availability information using topology aggregation schemes and (b) computing feasible paths using this information. This paper firstlyproposes a probabilistic scheme for topology aggregation inlarge networks which are QoS sensitive. Our goal is to account for the inherent dynamic nature of the QoS resourcesby using probablistic measures as opposed to the existingdeterministic ones. Additionally, this paper also proposes amodification to an existing probabilistic QoS routing algorithm for concave QoS parameters. The proposed heuristicalgorithm increases the global network resource utilization.