@article{Wong2006Performance,
author = {E. W. M. Wong and M. Zukerman},
title = {Performance evaluation of an optical hybrid switch
with circuit queued reservations and circuit priority
preemption},
journal = {Optical Express},
volume = {14},
number = {23},
pages = {11043-11070},
month = {Nov.},
year = {2006}
abstract = {We provide here a new loss model for an optical
hybrid switch that can function as an optical burst switch or optical circuit
switch or both simultaneously. We introduce the feature of circuit queued
reservation. That is, if a circuit request arrives and cannot find a free
wavelength, and if there are not too many requests queued for reservations, it
may join a queue and wait until such wavelength becomes available. We first
present an analysis based on a 3-dimension state-space Markov chain that
provides exact results for the blocking probabilities of bursts and circuits. We
also provide results for the proportion of circuits that are delayed and the
mean delay of the circuits that are delay. Because it is difficult to exactly
compute the blocking probability in realistic scenarios with a large number of
wavelengths, we derive computationally scalable and accurate approximations
which are based on reducing the 3-dimension state space into a single dimension.
These scalable approximations that can produce performance results in a fraction
of a second can readily enable switch dimensioning.}
}