Title :
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
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;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1312769
