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Reducing Blocking Probability in Dynamic WDM Networks Using Different Schemes
Linköping University, Department of Electrical Engineering, Information Coding. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Information Coding. Linköping University, The Institute of Technology.
2011 (English)In: Proceedings 2011 International Conferenceon the Network of the Future, 28-30 November, 2011 Paris, France, IEEE , 2011, 97-101 p.Conference paper, Published paper (Refereed)
Abstract [en]

strategies. First we analyze a strategy which effectively utilizes two Service Level Agreement (SLA) metrics i.e. holding-time combined with set-up delay tolerance, for connection provisioning. We investigate its performance improvement compared to the scheme proposed in [4] and with the strategy which exploits only the set-up delay tolerance for connection provisioning. Secondly, we evaluate the performance of the various approaches for network blocking reduction over a wide range of network loads. Our aim is to obtain an insight information, that can be useful for selection of an optimal strategy for designing a network, with specific network parameters and performance requirements.

Place, publisher, year, edition, pages
IEEE , 2011. 97-101 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-85536DOI: 10.1109/NOF.2011.6126691ISBN: 978-1-4577-1605-8 (print)OAI: oai:DiVA.org:liu-85536DiVA: diva2:571352
Conference
International Conference on the Network of the Future (NOF), 28-30 Nov, 2011, Paris, France
Available from: 2012-11-22 Created: 2012-11-22 Last updated: 2012-11-27
In thesis
1. Connections Provisioning Strategies for dynamic WDM networks
Open this publication in new window or tab >>Connections Provisioning Strategies for dynamic WDM networks
2012 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The size, complexity, and the amount of traffic generation of optical communication networks have dramatically increased over the last decades. Exciting technologies, namely, optical amplifiers, wavelength division multiplexing (WDM) and optical filters have been included in optical networks, in order to fulfill end users appetite for bandwidth. However, the users high bandwidth demand will further increase with time, as emerging on-demand bandwidth intensive applications are starting to dominate the networks. Applications such as interactive video, ultra-high definition TV, backup storage, grid computing, e-science, e-health to mention a few, are becoming increasingly attractive and important for the community. Given the high bandwidth requirements and strict service level specifications (SLSs) of such applications, WDM networks equipped with agile devices, such as reconfigurable optical add-drop multiplexers and tunable transceivers integrated with G-MPLS/ASON control-plane technology are advocated as a natural choice for their implementation. SLSs are metrics of a service level agreement (SLA), which is a contract between a customer and network operator. Apart from other candidate parameters, the set-up delay tolerance and connection holding-time have been defined as metrics of SLA.

This work addresses the network connections provisioning problem for the above mentioned demanding applications, by exploiting the time dimension of connections request. The problem is investigated for dynamic networks comprising ideal and nonideal components in their physical layer, and for applications with differentiated set-up delay tolerance and quality of signal requirements. Various strategies for different scenarios are proposed, each strategy combining in a different way the concept of both set-up delay tolerance and connection holding-time awareness. The objectives of all these strategies are to enhance the network connections provisioning capability and to fulfill customers demand, by utilizing the network resources efficiently.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2012. 38 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1557
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:liu:diva-84795 (URN)LIU-TEK-LIC-2012:42 (Local ID)978-91-7519-740-1 (ISBN)LIU-TEK-LIC-2012:42 (Archive number)LIU-TEK-LIC-2012:42 (OAI)
Presentation
2012-12-05, Signalen, Hus B, Campus Valla, Linköping University, Linköping, 10:30 (English)
Opponent
Supervisors
Available from: 2012-11-22 Created: 2012-10-22 Last updated: 2012-11-26Bibliographically approved

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Muhammad, AjmalForchheimer, Robert

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