Title
Spatially-coherent uniformization of a stochastic fluid model to a Quasi-Birth-and-Death process
Abstract
We derive a uniformization of a stochastic fluid model (SFM) to a Quasi-Birth-and-Death process (QBD) that is spatially-coherent since the continuous level in the SFM has a natural correspondence to the discrete level in the QBD. As a consequence of this, the QBD can be used as a direct approximation of the original SFM, in those situations where a discrete state space is an advantage. We treat the unbounded as well as the bounded cases and illustrate the theory with a numerical example. The key fluid generator, Q, and matrix @J for the SFMs emerge from the QBD calculations in the natural limit.
Year
DOI
Venue
2013
10.1016/j.peva.2013.05.006
Perform. Eval.
Keywords
Field
DocType
original sfm,discrete state space,natural correspondence,spatially-coherent uniformization,qbd calculation,quasi-birth-and-death process,stochastic fluid model,natural limit,continuous level,key fluid generator,discrete level,uniformization,markov chain
Applied mathematics,Birth and death process,Mathematical optimization,Uniformization (set theory),Uniformization (probability theory),Matrix (mathematics),Markov chain,Fluid queue,State space,Mathematics,Bounded function,Distributed computing
Journal
Volume
Issue
ISSN
70
9
0166-5316
Citations 
PageRank 
References 
2
0.38
2
Authors
2
Name
Order
Citations
PageRank
nigel g bean14710.77
Małgorzata M. O'reilly282.59