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New Dimensions for Survivable Service Provisioning in Optical Backbone and Access Networks
KTH, School of Information and Communication Technology (ICT), Optics and Photonics (Closed 20120101), Photonics (Closed 20120101). KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab). (NEGONET)ORCID iD: 0000-0002-5636-9910
KTH, School of Information and Communication Technology (ICT), Optics and Photonics (Closed 20120101), Photonics (Closed 20120101). KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab). KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth. Istanbul Technical University, Turkey. (NEGONET)
KTH, School of Information and Communication Technology (ICT), Optics and Photonics (Closed 20120101), Photonics (Closed 20120101). KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab). (NEGONET)
KTH, School of Information and Communication Technology (ICT), Optics and Photonics (Closed 20120101), Photonics (Closed 20120101). KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab). (NEGONET)ORCID iD: 0000-0001-6704-6554
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2012 (English)In: Resilient Optical Network Design: Advances in Fault-Tolerant Methodologists / [ed] Mark Leeson and Yousef Kavian, IGI Global, 2012, 227-252 p.Chapter in book (Refereed)
Abstract [en]

Originally, networks were engineered to provide only one type of service, i.e. either voice or data, soonly one level of resiliency was requested. This trend has changed, and today’s approach in serviceprovisioning is quite different. A Service Level Agreement (SLA) stipulated between users and serviceproviders (or network operators) regulates a series of specific requirements, e.g., connection set-up timesand connection availability that has to be met in order to avoid monetary fines. In recent years this hascaused a paradigm shift on how to provision these services. From a “one-solution-fits-all” scenario, wewitness now a more diversified set of approaches where trade-offs among different network parameters(e.g., level of protection vs. cost and/or level of protection vs. blocking probability) play an important role.This chapter aims at presenting a series of network resilient methods that are specifically tailored for adynamic provisioning with such differentiated requirements. Both optical backbone and access networksare considered. In the chapter a number of provisioning scenarios - each one focusing on a specificQuality of Service (QoS) parameter - are considered. First the effect of delay tolerance, defined as theamount of time a connection request can wait before being set up, on blocking probability is investigatedwhen Shared Path Protection is required. Then the problem of how to assign “just-enough” resources tomeet each connection availability requirement is described, and a possible solution via a Shared PathProtection Scheme with Differentiated Reliability is presented. Finally a possible trade off between deploymentcost and level of reliability performance in Passive Optical Networks (PONs) is investigated. 

The presented results highlight the importance of carefully considering each connection’s QoS parameterswhile devising a resilient provisioning strategy. By doing so the benefits in terms of cost saving andblocking probability improvement becomes relevant, allowing network operators and service providersto maintain satisfied customers at reasonable capital and operational expenditure levels.

Place, publisher, year, edition, pages
IGI Global, 2012. 227-252 p.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-85540DOI: 10.4018/978-1-61350-426-0.ch010Scopus ID: 2-s2.0-84898163825ISBN: 9781613504260 (print)ISBN: 1613504268 (print)OAI: oai:DiVA.org:kth-85540DiVA: diva2:499994
Funder
ICT - The Next Generation
Note

QC 20120330

Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2016-04-21Bibliographically approved

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Monti, PaoloWosinska, Lena

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Monti, PaoloCavdar, CicekChen, JiajiaWosinska, Lena
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Photonics (Closed 20120101)Optical Network Laboratory (ON Lab)Center for Wireless Systems, Wireless@kth
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