DocumentCode :
2726684
Title :
Traffic grooming in OBS networks based on virtual optical memories
Author :
Boudriga, Noureddine ; Abdallah, Walid ; Hamdi, Mohamed
Author_Institution :
Commun. Networks & Security Res. Lab., Univ. of November 7th at Carthage, Carthage, Tunisia
fYear :
2009
fDate :
June 28 2009-July 2 2009
Firstpage :
1
Lastpage :
5
Abstract :
In this paper, we investigate the effect of grooming segment-based traffic on statistical multiplexing gain using simplified edge-node models of optical burst switching (OBS) networks. The objective is to multiplex different bursts on the same output wavelength in order to optimize the bandwidth utilization on the optical fiber. We introduce a particular structure of the burst header packet (BHP) in order to support a per segment processing at the core nodes. An algorithm for building a new BHP for the output multiplexed traffic is developed. A subsequent dropping strategy based on the availability of virtual optical memory (VOMcopy) resources and the maximum delay a segment can have is proposed. Unlike the approaches that have been proposed in the literature for traffic multiplexing in OBS networks, the proposed grooming strategy is executed at the core nodes (instead of edge nodes) resulting in a more efficient utilization of the network resources. The effect of traffic variability and VOMcopy size on statistical multiplexing gain and bandwidth savings are evaluated. The evolution of the bandwidth utilization, loss probability, and transmission delay according to the VOMcopy characteristics is also studied.
Keywords :
optical burst switching; optical fibre networks; optical storage; protocols; telecommunication traffic; OBS networks; VOMcopy size; bandwidth utilization; burst header packet; loss probability; optical burst switching; simplified edge-node models; statistical multiplexing gain; traffic grooming; traffic variability; transmission delay; virtual optical memory; Availability; Bandwidth; Buildings; Delay; Optical burst switching; Optical fiber networks; Optical fibers; Propagation losses; Telecommunication traffic; Traffic control; OBS networks; optical multiplexing; resource utilization; traffic grooming; virtual optical memory;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Transparent Optical Networks, 2009. ICTON '09. 11th International Conference on
Conference_Location :
Azores
Print_ISBN :
978-1-4244-4825-8
Electronic_ISBN :
978-1-4244-4827-2
Type :
conf
DOI :
10.1109/ICTON.2009.5185012
Filename :
5185012
Link To Document :
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