Call Admission Control Schemes under the Generalized Processor Sharing Scheduling

  • Authors:
  • Zhil Zhang;Z. Liu;J. Kurose;D. Towsley

  • Affiliations:
  • -;-;-;-

  • Venue:
  • Call Admission Control Schemes under the Generalized Processor Sharing Scheduling
  • Year:
  • 1995

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Abstract

Provision of Quality-of-Service (QoS) guarantees is an important and challenging problem in the design of integrated-services packet networks. Call admission control is an integral part of the challenge and is closely related to other aspects of networks such as service models, scheduling disciplines, traffic characterization and QoS specification. In this paper we provide a theoretical framework within which call admission control schemes with multiple statistical QoS guarantees can be constructed for the Generalized Processor Sharing (GPS) scheduling discipline (also known as Weighted Fair Queueing). Using this framework, we present several admission control schemes for both session-based and class-based service models. The theoretical framework is based on recent results in statistical analyses of the GPS scheduling discipline and the theory of effective bandwidths. Both optimal schemes and suboptimal schemes requiring less computational effort are studied under these service models. The QoS metric considered is buffer loss probability.