@article{Zhang2012Modeling,
author = {Jianan Zhang and Eric W. M. Wong and Moshe
Zukerman},
title = {Modeling an {OBS} node under critical load and high
utilization conditions},
journal = {IEEE Communications Letters},
volume = {16},
number = {4},
pages = {544-546},
month = {Apr.},
year = {2012},
abstract = {We consider a bufferless optical burst switching
optical cross connect modeled as a continuous-time Markov chain based on a
generalized Engset model. We focus specifically on critical load and other given
levels of high utilization conditions and evaluate the required number of
wavelength channels per cable to keep the blocking probability below a given
level. We observe that although a large number of wavelength channels per cable
are required to achieve low blocking probability under critical load condition,
the required number of such channels decreases significantly if the utilization
is allowed to drop to 90% or 80%. We also propose a new blocking probability
approximation that is more accurate than previous approximations under critical
load condition.}
}