@article{Zhang2011Sensitivity,
author = {Jianan Zhang and Yu Peng and Eric W. M. Wong and Moshe
Zukerman},
title = {Sensitivity of Blocking Probability
in the Generalized Engset Model for {OBS}},
journal = {IEEE Communications Letters},
volume = {15},
number = {11},
pages = {1243-1245},
month = {Nov.},
year = {2011},
abstract = {The
generalized Engset
model can be applied to evaluate
the blocking
probability at an optical cross connect (OXC)
of bufferless optical burst switching (OBS)
system. For tractability, previous studies assumed
that burst transmission time (on-time) and time intervals between bursts
provided by the same input channel (off-time) are
exponentially distributed. Here we aim to study the
sensitivity of
blocking probability
to the shape of these
distributions. Extensive numerical results demonstrate that
the blocking
probability is not very sensitive to on- and
off-time distributions in general. We observe that
higher variance of on- and off-time distributions
may lead to better performance.}
}