Analysis of a WDM packet switch with improved performance under bursty traffic conditions due to tuneable wavelength converters

Author

Danielsen, Soren L. ; Joergensen, Carsten ; Mikkelsen, Benny ; Stubkjae, Kristian E.

Author_Institution

Center for Broadband Telecommun., Tech. Univ. Denmark, Lyngby, Denmark

Volume

16

Issue

5

fYear

1998

fDate

5/1/1998 12:00:00 AM

Firstpage

729

Lastpage

735

Abstract

For realistic traffic, i.e., bursty traffic patterns, the use of tuneable wavelength converters is recognized as essential for reducing the complexity of photonic wavelength division multiplexing (WDM) packet switches. Results are obtained from an analytical traffic model that includes buffering in the wavelength domain and accounts for bursty traffic. The theoretical model is verified by simulations and from the model we find that higher traffic loads as well as burstiness can be accepted when tuneable wavelength converters are used. Consequently, a larger throughput of the photonic packet switches is obtained and very importantly, this is achieved while keeping the number of gates needed to realize the space switches nearly constant

Keywords

burst noise; optical fibre networks; optical frequency conversion; optical noise; packet switching; telecommunication network routing; telecommunication traffic; tuning; wavelength division multiplexing; WDM packet switch; analytical traffic model; buffering; bursty traffic conditions; bursty traffic patterns; photonic packet switches; photonic wavelength division multiplexing packet switch complexity reduction; realistic traffic; space switches; traffic loads; tuneable wavelength converters; wavelength domain; Optical buffering; Optical packet switching; Optical switches; Optical wavelength conversion; Packet switching; Performance analysis; Telecommunication traffic; Throughput; Traffic control; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.669000

Filename

669000