نتایج جستجو برای: queueing networks

تعداد نتایج: 433666  

Journal: :IEEE Trans. Communications 1993
Jonathan S. Turner

This paper provides a method for analyzing the queueing behavior of switching net works constructed from switches that employ shared bu ering or parallel bypass input bu er ing It extends the queueing models rst intro duced by Jenq and later generalized by Szyman ski and Shaikh to handle these classes of networks Our analysis explicitly models the state of an en tire switch and infers informati...

2000
Simonetta Balsamo

Queueing networks with finite capacity queues and blocking are applied to model systems with finite resources and population constraints, such as computer and communication systems, as well as traffic, production and manufacturing systems. Various blocking types can be defined to represent different system behaviors. When a customer attempts to enter a full capacity queue blocking occurs. The a...

Journal: :CoRR 2002
Nikolai K. Krivulin

Simple lower and upper bounds on mean cycle time in stochastic acyclic fork-join queueing networks are derived using a (max,+)algebra based representation of network dynamics. The behaviour of the bounds under various assumptions concerning the service times in the networks is discussed, and related numerical examples are presented. Key-Words: (max,+)-algebra, dynamic state equation, acyclic fo...

2004
Vyacheslav M. Abramov Zeev Schuss Robert Liptser

This dissertation is concerned with the study of non-Markovian queueing systems and networks, with applications to communication networks. The main contribution of the dissertation consists in deriving results for non-Markovian networks that have been obtained so far only for Markovian queueing networks. We study large closed client/server communication networks and losses in single-server queu...

Journal: :RAIRO - Operations Research 2005
Saulius Minkevicius Stasys Steisunas

The paper is designated to the analysis of queueing systems, arising in the network theory and communications theory (called multiphase queueing systems, tandem queues or series of queueing systems). Also we note that multiphase queueing systems can be useful for modelling practical multi-stage service systems in a variety of disciplines, especially on manufacturing (assembly lines), computer n...

2017
Peter Stuhr

This paper presents a VESI implementation of a resource allocation scheme, based on the concept of weighted fair queueing. The design can be used in Asynchronous Transfer Mode (ATM) networks to ensure fairness and robustness. Weighted fair queueing is a scheduling and buffer management scheme that can provide a resource allocation policy and enforcement of this policy. It can be used in network...

2011

A class of queueing networks with topology, varying with time at random on each cycle of system, is considered. It is also assumed that on each cycle the network failures may occur with non-zero probability. The upper bound for the mean in-process time of networks is constructed by using the idempotent algebra approach. Preliminary remarks. The mathematical apparatus of the idempotent (max, -l-...

2015
J. L. Vázquez-Avila Remberto Sandoval-Arechiga Ramón Parra-Michel

Based on Lindley’s recursive equations for G/G/1 systems, this paper proposes a Fast Discrete Event Simulation (FDES) model for queueing networks. Equations for multiplexer and de-multiplexer elements are presented, which allows to simulate not only tandem but queueing networks with an arbitrary topology. Time savings obtained with FDES could speed up the analyses of large-scale queueing networ...

2006
Ruth J. Williams Maurice Belz Harrison P. R. Kumar

Stochastic processing networks arise as models in manufacturing, telecommunications, transportation, computer systems, the customer service industry and biochemical reaction networks. Common characteristics of these networks are that they have entities, such as jobs, packets, vehicles, customers or molecules, that move along routes, wait in buffers, receive processing from various resources, an...

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