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| Dynamic Hybrid Topology Design
for Integrated Traffic Support
in WDM Mesh Networks
(Invited Paper)
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Full
text: |
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Source |
International Journal of Computer Networks (IJCN) |
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Table of Contents |
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Download
Complete Issue PDF(1.67MB) |
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Volume: 2 Issue: 2 |
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Pages: 80-114 |
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Publication
Date: May 2010 |
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ISSN
(Online): 1985-4129 |
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Pages |
115 - 131 |
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Author(s) |
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Published
Date |
10-06-2010 |
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Publisher |
CSC
Journals, Kuala Lumpur,
Malaysia |
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ADDITIONAL
INFORMATION |
| Keywords Abstract References Cited by Related Articles Collaborative
Colleague |
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KEYWORDS: WDM networks, Multicast, Hybrid topology |
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| The future Internet will require the transport of a wide range of services including high bandwidth one-to-many applications, with a dynamic
interconnection of devices. WDM layer support realizes such services in a transparent, reliable and efficient way. Most of the recent studies
have been focused on efficiently building and configuring light-paths for unicast or light-trees for multicast in isolation, and do not take
existing traffic demands and configuration into consideration. In this paper we consider a dynamic design problem of integrated traffic in a
realistic WDM mesh network. In such a network, new traffic demands of either multicast and/or unicast are supported dynamically in the presence
of an existing mixture of traffic. The amount of bandwidth per wavelength is abundant, while the wavelengths and light splitting capabilities
on WDM switches are limited. Using subwavelength sharing among traffic demands of unicast and multicast, we build a hybrid virtual topology that
exploits both existing light-trees and light-paths. By optimizing WDM resources in addition to resource sharing with existing unicast and
multicast demands, we truly maximize the WDM layer capability and efficiently support more traffic demands. We validate the efficiency of our
approach with extensive simulations on various network topologies. |
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| Mina Youssef : Colleagues
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| Baek-Young Choiz : Colleagues
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| Caterina Scoglio : Colleagues
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| Eun Kyo Park : Colleagues
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