NDLI: Survivable traffic grooming with path protection at the connection level in WDM mesh networks

Content Provider	IEEE Xplore Digital Library
Author	Wang Yao Ramamurthy, B.
Copyright Year	2004
Description	Author affiliation: Dept. of Comput. Sci. & Eng., Nebraska Univ., Lincoln, NE, USA (Wang Yao; Ramamurthy, B.)
Abstract	Survivable traffic grooming (STG) is a promising approach to provide reliable and resource-efficient multigranularity connection services in wavelength division multiplexing (WDM) optical networks. In this paper, we study the STG problem in WDM mesh optical networks employing path protection at the connection level. Both dedicated protection and shared protection schemes are considered. Given the network resources, the objective of the STG problem is to maximize network throughput. To enable survivability under various kinds of single failures such as fiber cut and duct cut, we consider the general shared risk link group (SRLG) diverse routing constraints. We first resort to the integer linear programming (ILP) approach to obtain optimal solutions. To address its high computational complexity, we then propose three efficient heuristics, namely separated survivable grooming algorithm (SSGA), integrated survivable grooming algorithm (ISGA) and tabu search survivable grooming algorithm (TSGA). While SSGA and ISGA correspond to an overlay network model and a peer network model respectively, TSGA further improves the grooming results from SSGA and ISGA by incorporating the effective tabu search method. Numerical results show that the heuristics achieve comparable solutions to the ILP approach, which uses significantly longer running times than the heuristics.
Sponsorship	IEEE Commun. Soc. Create-Net ICST sigmobile Nortel Networks Philips NEC
Starting Page	310
Ending Page	319
File Size	166512
Page Count	10
File Format	PDF
ISBN	0769522211
DOI	10.1109/BROADNETS.2004.80
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-10-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Telecommunication traffic Protection Wavelength division multiplexing WDM networks Mesh networks Optical fiber networks Throughput Ducts Routing Integer linear programming
Content Type	Text
Resource Type	Article

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