V. Eramo et M. Listanti, Wavelength converter sharing in a WDM optical packet switch: dimensioning and performance issues, COMPUT NET, 32(5), 2000, pp. 633-651
Citations number
26
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
COMPUTER NETWORKS-THE INTERNATIONAL JOURNAL OF COMPUTER AND TELECOMMUNICATIONS NETWORKING
This paper analyses the performance of an optical packet switch making use
of fiber delay-lines to resolve output packet contentions and equipped with
a set of tunable wavelength converters (TOWCs) shared among the input line
s. The wavelength converters can shift optical packets to any wavelength of
the output link which they are directed to. An analytical model is develop
ed to evaluate the number of TOWCs needed to satisfy given performance requ
irements. Moreover, a sensitivity analysis with respect to both the optical
packet switch parameters and the traffic load is carried out. The obtained
results show that the number of converters needed to maintain the packet l
oss probability is much lower than that needed by the switches proposed in
literature. (C) 2000 Elsevier Science B.V. All rights reserved.