DocumentCode :
392699
Title :
The role of network topologies in the optical core of IP-over-WDM networks with static wavelength routing
Author :
Freire, Mário M. ; Coelho, Rui M F ; Rodrigues, Joel J P C
Author_Institution :
Dept. of Informatics, Univ. of Beira Interior, Covilha, Portugal
Volume :
1
fYear :
2003
fDate :
23 Feb.-1 March 2003
Firstpage :
1
Abstract :
We present a performance analysis of network topologies for the optical core of IP-over-WDM networks with static wavelength routing. Regular degree four topologies are considered and the performance analysis is focused on chord lengths that lead to smallest diameters. For comparison purposes, degree three topologies are also considered. It is shown that the increase of the nodal degree from 3 (degree three topology with smallest diameter) to 4 (degree four topology with smallest diameter) improves the network performance if a larger number of wavelengths per link is available. However, the influence of wavelength interchange on the nodal degree gain is small. The performance of regular degree four topologies with smallest diameter is also compared with the performance of mesh-torus topologies (which are also degree four topologies), and it is shown that the blocking probability of degree four topologies with smallest diameter is about two orders of magnitude lower than the blocking probability of mesh-torus topologies.
Keywords :
network topology; optical fibre networks; probability; telecommunication network routing; telecommunication traffic; transport protocols; wavelength division multiplexing; IP-over-WDM networks; blocking probability; chord lengths; mesh-torus topologies; network performance; network topologies; nodal degree; nodal degree gain; optical core; performance analysis; static wavelength routing; traffic performance; wavelength interchange; IP networks; Informatics; Intelligent networks; Network topology; Next generation networking; Optical fiber networks; Performance analysis; Telecommunication traffic; Wavelength division multiplexing; Wavelength routing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Telecommunications, 2003. ICT 2003. 10th International Conference on
Print_ISBN :
0-7803-7661-7
Type :
conf
DOI :
10.1109/ICTEL.2003.1191145
Filename :
1191145
Link To Document :
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