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Reducing Blocking Probability in Dynamic WDM Networks Using Different Schemes
Linköpings universitet, Institutionen för systemteknik, Informationskodning. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för systemteknik, Informationskodning. Linköpings universitet, Tekniska högskolan.
2011 (engelsk)Inngår i: Proceedings 2011 International Conferenceon the Network of the Future, 28-30 November, 2011 Paris, France, IEEE , 2011, s. 97-101Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
IEEE , 2011. s. 97-101
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-85536DOI: 10.1109/NOF.2011.6126691ISBN: 978-1-4577-1605-8 (tryckt)OAI: oai:DiVA.org:liu-85536DiVA, id: diva2:571352
Konferanse
International Conference on the Network of the Future (NOF), 28-30 Nov, 2011, Paris, France
Tilgjengelig fra: 2012-11-22 Laget: 2012-11-22 Sist oppdatert: 2012-11-27
Inngår i avhandling
1. Connections Provisioning Strategies for dynamic WDM networks
Åpne denne publikasjonen i ny fane eller vindu >>Connections Provisioning Strategies for dynamic WDM networks
2012 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
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.

sted, utgiver, år, opplag, sider
Linköping: Linköping University Electronic Press, 2012. s. 38
Serie
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1557
HSV kategori
Identifikatorer
urn:nbn:se:liu:diva-84795 (URN)LIU-TEK-LIC-2012:42 (Lokal ID)978-91-7519-740-1 (ISBN)LIU-TEK-LIC-2012:42 (Arkivnummer)LIU-TEK-LIC-2012:42 (OAI)
Presentation
2012-12-05, Signalen, Hus B, Campus Valla, Linköping University, Linköping, 10:30 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2012-11-22 Laget: 2012-10-22 Sist oppdatert: 2012-11-26bibliografisk kontrollert

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