DocumentCode :
1965765
Title :
Comparison of contention resolution strategies in OBS network scenarios
Author :
Gauger, Christoph M. ; Kohn, Martin ; Scharf, Joachim
Author_Institution :
Inst. of Commun. Networks & Comput. Eng., Stuttgart Univ., Germany
Volume :
1
fYear :
2004
fDate :
4-8 July 2004
Firstpage :
18
Abstract :
Optical burst switching (OBS) has attracted interest as a transport network architecture for the future optical Internet. As OBS relies on statistical multiplexing efficient contention resolution is a key issue in order to achieve a low burst loss probability. Basically, contentions can be resolved by wavelength conversion, deflection routing and delaying the burst in a fiber delay line or a combination of these schemes. This paper compares the basic and combined contention resolution strategies in two reference core network scenarios with respect to burst loss probability and end-to-end transfer delay. We show that the effectiveness of those contention resolution schemes highly depends on the load offered to the network and the dimensioning of specific nodes and links. For high load, contention resolution schemes applying deflection routing have an end-to-end transfer time increase in the order of 10-60% depending on the scheme.
Keywords :
Internet; delays; optical fibre networks; optical wavelength conversion; probability; telecommunication congestion control; telecommunication network routing; telecommunication switching; telecommunication traffic; OBS network; burst loss probability; contention resolution strategies; deflection routing; end-to-end transfer delay; fiber delay line; future optical Internet; link dimensioning; network load; node dimensioning; optical burst switching; statistical multiplexing; transport network architecture; wavelength conversion; Delay lines; Intelligent networks; Optical buffering; Optical burst switching; Optical fiber networks; Optical wavelength conversion; Probability; WDM networks; Wavelength division multiplexing; Wavelength routing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Transparent Optical Networks, 2004. Proceedings of 2004 6th International Conference on
Print_ISBN :
0-7803-8343-5
Type :
conf
DOI :
10.1109/ICTON.2004.1360237
Filename :
1360237
Link To Document :
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