Results 61 to 70 of about 756 (151)

A matrix-geometric solution for the multiserver nonpreemptive priority queueing model with mixed priorities. [PDF]

open access: yes
This paper describes the analysis of multiserver queues with nonpreemptive mixed priorities. Such priority structures occur, for example, in initiator settings within the mainframe operating system MVS: job classes have to be assigned to initiators and ...
Leemans, Herlinde, Dedene, Guido
core  

Commuting Matrices in the Queue Length and Sojourn Time Analysis of MAP/MAP/1 Queues

open access: yes, 2014
: Queues with Markovian arrival and service processes, i.e., MAP/MAP/1 queues, have been useful in the analysis of computer and communication systems and different representations for their stationary sojourn time and queue length distribution have been ...
Horváth, Gábor   +4 more
core   +1 more source

Bayesian control of the number of servers in a GI/M/c queuing system [PDF]

open access: yes, 2004
In this paper we consider the problem of designing a GI/M/c queueing system. Given arrival and service data, our objective is to choose the optimal number of servers so as to minimize an expected cost function which depends on quantities, such as the ...
Lillo Rodríguez, Rosa Elvira   +5 more
core  

Rank-driven Markov processes

open access: yes, 2011
We study a class of Markovian systems of N elements taking values in [0,1] that evolve in discrete time t via randomized replacement rules based on the ranks of the elements.
Grinfeld, Michael   +7 more
core   +1 more source

Stability conditions for a Piecewise Deterministic Markov Process [PDF]

open access: yes
In the present paper we study the stability of a threshold continuos-time model that belongs to the class of Piecewise Deterministic Markov Processes. We derive a sufficient condition on the coefficients of the model to ensure the exponential ergodicity ...
Fonseca Giovanni
core  

A Diffusion Approximation for Bulk Queues

open access: yes
In this paper the steady-state queue size behavior of single-server queues with bulk-arrival and batch-service, referred to as bulk queues, is approximated by a diffusion process using the instantaneous return approach.
Singha Chiamsiri, Michael S. Leonard
core   +1 more source

On some queueing systems with server vacations, extended vacations, breakdowns, delayed repairs and stand-bys

open access: yes, 2012
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This research investigates a batch arrival queueing system with a Bernoulli scheduled vacation and random system breakdowns.
Khalaf, Rehab
core  

Marginal productivity index policies for problems of admission control and routing to parallel queues with delay [PDF]

open access: yes
In this paper we consider the problem of admission control of Bernoulli arrivals to a buffer with geometric server, in which the controller’s actions take effect one period after the actual change in the queue length.
Peter Jacko, Jose Nino-Mora
core  

On Markov Chains with Uncertain Data

open access: yes
In this paper, a general method is described to determine uncertainty intervals for performance measures of Markov chains given an uncertainty region for the parameters of the Markov chains.
Blanc, J.P.C., Hertog, D. den
core  

Fluid queues to solve jump processes

open access: yes, 2005
We consider systems which exhibit a mixture of smooth behavior and occasional jumps, controlled by continuous-time Markovian processes on a finite state space, and we call these fluid queues with jumps, thereby emphasizing the fact that they constitute a
Da Silva Soares, Ana   +4 more
core   +1 more source

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