NDLI: Multicast traffic grooming in wavelength-routed WDM mesh networks using dynamically changing light-trees

Content Provider	IEEE Xplore Digital Library
Author	Xiaodong Huang Farahmand, F. Jue, J.P.
Copyright Year	1983
Abstract	In this paper, we address the online multicast traffic grooming problem in wavelength-routed wavelength division multiplexing (WDM) mesh networks with sparse grooming capability. We develop a multicast dynamic light-tree grooming algorithm (MDTGA) that can support multihop traffic grooming by taking advantage of light-trees. In this algorithm, a light-tree can be dropped, branched, and extended when a route is to be established for a new request; a light-tree can also be contracted when some branches carry no effective traffic after requests depart from the network. The difficulty of the algorithm lies in the dynamic characteristic of light-trees. We implement MDTGA on a new auxiliary-graph model. For the purpose of comparison, we also implement a lightpath-based grooming algorithm by putting a constraint on the optical-splitting capability of the nodes. Through extensive simulations, we find that MDTGA has much better performance than the lightpath-based algorithm.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	3178
Ending Page	3187
Page Count	10
File Size	298214
File Format	PDF
ISSN	07338724
Volume Number	23
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Telecommunication traffic Intelligent networks Wavelength division multiplexing WDM networks Mesh networks Traffic control Multicast algorithms Optical fiber networks Communication channels Bandwidth wavelength division multiplexing (WDM) Blocking probability graph model light-tree multicast routing traffic grooming
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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