Abstract
Quality of Service differentiation is an open research issue in optical
burst switching (OBS) networks. Most proposals assume full
wavelength-conversion, but wavelength converters are still very complex and
expensive, and accordingly limited and no wavelength conversion OBS networks
are likely to be the most common scenarios.In this paper, we define and analyze the QoS Multiple Wavelength Simultaneous
Transmission technique (QoS-MWST), a novel method for
providing loss differentiation in OBS networks with limited or no
wavelength-conversion capability. In QoS-MWST, multiple copies of each
burst are simultaneously sent on different wavelengths, so as to increase
the chances of data delivery, and loss differentiation is achieved by
properly sending more copies of the higher-priority bursts.Through analysis and extensive simulation experiments, we demonstrate that QoS-MWST can provide loss
differentiation in OBS networks without full wavelength-conversion
capability more efficiently than other differentiation techniques proposed
in the literature.
© 2010 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription