The worldwide growth in broadband access and multimedia traffic has led to an increasing need for Qualityof-Service (QoS) in networks. Real time network applications require a stable, reliable, and predictable network that will guarantee packet delivery under QoS constraints. Network selfawareness through on-line measurement and adaptivity in response to user needs is one way to advance user Qo...

Measurement-based admission control (MBAC) is an important technique for providing statistical service guarantees and many MBAC algorithms have been proposed in the literature. It has also been investigated in a previous work that these algorithms achieve nearly the same utilization for a given packet loss rate or in short the same loss-load curve. Based on this investigation, it has been argue...

The IETF working groups such as Integrated Services (called "intserv") and RSVP [1] have developed extensions to the IP architecture and the best-effort service model so that applications or end users can request specific quality (or levels) of service from an internetwork in addition to the current IP best-effort service. Recent efforts in the Differentiated Services Working Group are also dir...

iv 1 Introduction 1 Evolution of standards and protocols for high speed networks coupled with rapid advances in the storage technology has spurred interest in distributed multimedia applications. Distributed video-on-demand systems are expected to be one of the most important services supported by the next generation of high-speed networks and video servers. Because of the stringent real-time p...

The basic DiffServ model lacks mechanisms to prevent itself from being overload and to inform its internal capacity to the outside world. This paper addresses the problem by presenting a Fair Intelligent Admission Control (FIAC) over an enhanced-DiffServ architecture. The central idea is to make admission decision based on both informed network-status and traffic QoS requirements at the edge no...

Integrated services networks perform call admission control before accepting a new connection to ensure that the QoS requirements of all connections are met. Rather than relying on a priori traac descriptors (such as leaky buckets), which often poorly characterize the actual traac, measurement{based admission control bases admission decisions on measurements of the actual traac. In this paper w...

In this paper we present algorithms for flow admission control at an EDF link scheduler when the flows are characterized by peak rate, average rate and burst size. We show that the algorithms have very low computational complexity and are easily applicable in practice. The complexity can be further decreased by introducing the notion of flex classes. We evaluate the penalty in efficiency that t...

Experience-based admission control (EBAC) is a hybrid approach combining the classical parameter-based and measurement-based admission control schemes. EBAC calculates an appropriate overbooking factor used to overbook link capacities with resource reservations in packet-based networks. This overbooking factor correlates with the average peak-to-mean rate ratio of all admitted traffic flows on ...

We propose a new approach to pricing of capacity in service systems with blocking, using spot and derivative market mechanisms. A second-price auction among arrivals grouped in batches gives rise to the spot market of usage charges. A reservation guaranteeing access for an arbitrary duration with a usage price below the bid can be made at any time before or during service, thus eliminating the ...

Absfroct-To date, many Connection Admhsion Contml (CA0 Schemes have been pmpnsed. These scheme can he generally classified into two categories: measurement-based CAC and traffic descriptor-based CAC. Both categories adopt an open-Imp arehitecture where traffic parameten am ohtained fmm either on-lhe measurements or user-speci6cations and then input into a chosen traffic and network model to mak...