NDLI: Virtual topology optimization for optical traffic grooming in OBS networks

Content Provider	IEEE Xplore Digital Library
Author	Abdallah, W. Hamdi, M. Boudriga, N.
Copyright Year	2010
Description	Author affiliation: Communication Networks and Security Research Lab., University of November 7 at Carthage, Tunisia (Abdallah, W.; Hamdi, M.; Boudriga, N.)
Abstract	In this paper, we address the problem of optical grooming of data bursts in segment-based traffic of Optical Burst Switching (OBS) networks. The objective is to aggregate in one burst, different overlapping sub-bursts that are transmitted to the same destination. This process is executed at the core node and is based on the availability of Virtual Optical Memory (VOM©) resources. Hence, it can improve bandwidth utilization on the optical fiber. A crucial issue in optical grooming is efficient routing and wavelength assignment problem that depend on an optimized design of optical virtual topology. This problem has been extensively treated in circuit based WDM networks, but not the context OBS networks. In this paper we develop an optimization algorithm for virtual topology construction tacking in consideration burst grooming process. A performances study was performed by evaluating traffic demand satisfaction rate, Burst blocking, and average transmission delay according to wavelength availability and the VOM© characteristics.
Starting Page	1
Ending Page	5
File Size	225899
Page Count	5
File Format	PDF
ISBN	9781424477999
e-ISBN	9781424477982
e-ISBN	9781424477975
DOI	10.1109/ICTON.2010.5549105
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-27
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Network topology Optical fiber networks Telecommunication traffic Availability Circuit topology Performance evaluation Optical burst switching Aggregates Bandwidth Optical fibers Resource utilization OBS networks Virtual topology Traffic grooming Virtual optical memory
Content Type	Text
Resource Type	Article

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