Second-order fluid flow models: Reflected Brownian motion in a random environment

Second-order fluid flow models: Reflected Brownian motion in a random environment

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Article ID: iaor19972341
Country: United States
Volume: 43
Issue: 1
Start Page Number: 77
End Page Number: 88
Publication Date: Jan 1995
Journal: Operations Research
Authors: ,
Keywords: probability, stochastic processes, markov processes
Abstract:

This paper considers a stochastic fluid model of a buffer content process equ1 that depends on a finite-state, continuous-time Markov process equ2 as follows: During the time-intervals when equ3 is in state i, equ4 is a Brownian motion with drift equ5, variance parameter equ6 and a reflecting boundary at zero. This paper studies the steady-state analysis of the bivariate process equ7 in terms of the eigenvalues and eigenvectors of a nonlinear matrix system. Algorithms are developed to compute the steady-state distribution as well as moments. Numerical work is reported to show that the variance parameter has a dramatic effect on the buffer content process.

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