QoS provisioning using a clearing house architecture

Chen Nee Chuah, L. Subramanian, R. H. Katz, A. D. Joseph

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We have designed a clearing house (CH) architecture that facilitates resource reservations over multiple network domains, and performs local admission control. Two key ideas employed in this design to make the CH scalable to a large user base are hierarchy and aggregation. In our model, we assume the network is composed of various basic routing domains which can be aggregated to form logical domains. This introduces a hierarchical tree of logical domains and a distributed CH architecture is associated with each logical domain to maintain the intra-domain aggregate reservations. The parent CH in the logical tree maintains the inter-domain reservation requests. Call setup time is reduced by performing advanced reservations based on statistical estimates of the call traffic across various links. We explore, with simulations, the efficiency of the CH-architecture in terms of resource utilization, call rejections and reservation setup time.

Original languageEnglish (US)
Title of host publication2000 8th International Workshop on Quality of Service, IWQoS 2000
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages10
ISBN (Electronic)0780362667
StatePublished - 2000
Event8th International Workshop on Quality of Service, IWQoS 2000 - Pittsburgh, United States
Duration: Jun 7 2000 → …

Publication series

NameIEEE International Workshop on Quality of Service, IWQoS
ISSN (Print)1548-615X


Other8th International Workshop on Quality of Service, IWQoS 2000
Country/TerritoryUnited States
Period6/7/00 → …


  • Admission control
  • Aggregates
  • Bandwidth
  • Computer architecture
  • Delay effects
  • Quality of service
  • Resource management
  • Routing
  • Traffic control
  • Web and internet services

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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