Evaluation of limited wavelength conversion and deflection routing as methods to reduce blocking probability in optical burst switched networks

Author

Zalesky, Andrew ; Le Vu, Hai ; Zukerman, Moshe ; Rosberg, Zvi ; Wong, Eric W M

Author_Institution

Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia

Volume

3

fYear

2004

fDate

20-24 June 2004

Firstpage

1543

Abstract

Limited wavelength conversion and deflection routing are considered as viable methods to reduce the burst blocking probability in optical burst switched (OBS) networks. The question of which of the two methods is most effective has yet to be resolved. In this paper, an analytical model is derived that provides an accurate and quick means to evaluate and compare the effectiveness of limited wavelength conversion and deflection routing. First, an overflow load fixed point approximation model is derived for a single link in isolation. Then the single link model is integrated into a reduced load fixed point approximation model for a general network topology with deflection routing. The accuracy of the analytical model is verified through simulation.

Keywords

IP networks; network topology; optical fibre networks; optical links; packet switching; probability; switched networks; telecommunication network routing; transport protocols; IP packets; Internet protocol; blocking probability; deflection routing; limited wavelength conversion; network topology; optical burst switched networks; overflow load fixed point approximation model; single link; Analytical models; Australia; Communication switching; Intelligent networks; Lighting control; Network topology; Optical buffering; Optical fiber networks; Optical wavelength conversion; Wavelength routing;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2004 IEEE International Conference on

Print_ISBN

0-7803-8533-0

Type

conf

DOI

10.1109/ICC.2004.1312769

Filename

1312769