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Migration Towards Next Generation Optical Access and Transport Networks
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab). RISE Acreo.ORCID iD: 0000-0003-4128-1112
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

By 2020 there will be 50 billion connected devices over the Internet. With the fast-increasing data traffic demand in both fixed and mobile networks, network operators need to migrate networks towards next generation solutions. The network migration requires the enormous investment in equipment and infrastructure, while the revenues are not expected to grow significantly. Therefore, one of the main challenges for network operators is to find out a proper cost-effective optical network solution that can match future high capacity demand and flexibly support multiple network services on a common network infrastructure.

The first part of the thesis addresses the Active Optical Network (AON) and its migration strategies towards Next Generation Optical Access (NGOA) solutions. Several migration strategies are proposed from the perspective of network topology, data plane and control plane. A general methodology for Techno-Economic analysis has been developed and applied to the Total Cost of Ownership (TCO) calculation of different NGOA solutions. The thesis provides a complete cost evaluation of AON migration paths, which can be used by network operators to assess the economic feasibility of network migration.

A converged Optical Transport Network (OTN) that can serve both fixed and mobile network services is beneficial from the cost-saving perspective. However, the different types of services, require different network performance. The second part of the thesis focuses on the investigation of the converged OTN that can be flexibly and timely adjusted to satisfy varying service conditions. A programmable OTN featured with Wavelength Division Multiplexing (WDM) in the data plane and Software Defined Networking (SDN) in control plane has been proposed. To demonstrate the benefits of the converged OTN, the thesis also provides a multi-domain orchestration architecture for the multiple network services.  The resource orchestration, across three network domains: OTN, mobile network and cloud, enables agile service creation and optimized resource allocation among the multiple domains.

Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2017. , 63 p.
Keyword [en]
Fiber To The Home (FTTH), Mobile backhaul/fronthaul, Next Generation Optical Access network, Optical Transport Network (OTN), Network migration, Techno-Economic, Total Cost of Ownership (TCO), Capital expenditures (CAPEX), Operational expenditures (OPEX), Softer Defined Networking (SDN)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Information and Communication Technology; Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-206988ISBN: 978-91-7729-404-7 (print)OAI: oai:DiVA.org:kth-206988DiVA: diva2:1094888
Public defence
2017-06-12, Ka-Sal C Electrum, Kistagången 16, Kista, 14:00 (English)
Opponent
Supervisors
Note

QC 20170512

Available from: 2017-05-12 Created: 2017-05-11 Last updated: 2017-05-12Bibliographically approved
List of papers
1. Migration Strategies for FTTx Solutions based on Active Optical Networks
Open this publication in new window or tab >>Migration Strategies for FTTx Solutions based on Active Optical Networks
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2016 (English)In: IEEE Communications Magazine, ISSN 0163-6804, E-ISSN 1558-1896, Vol. 54, no 2, 78-85 p.Article in journal, Editorial material (Refereed) Published
Abstract [en]

AON, one of the most deployed fiber access solutions in Europe, needs to be upgraded in order to satisfy the ever growing bandwidth demand driven by new applications and services. Meanwhile, network providers want to reduce both capital expenditures and operational expenditures to ensure that there is profit coming from their investments. This article proposes several migration strategies for AON from the data plane, topology, and control plane perspectives, and investigates their impact on the total cost of ownership.

Place, publisher, year, edition, pages
IEEE, 2016
Keyword
AON, FTTx, SDN, Optical Access Network
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-206977 (URN)10.1109/MCOM.2016.7402265 (DOI)000370874200010 ()
Projects
EU Seventh Framework Program (FP7/2007-2013) under grant agreement n° 249025Kista 5G transport lab
Funder
VINNOVA
Note

QC 20170512

Available from: 2017-05-11 Created: 2017-05-11 Last updated: 2017-06-27Bibliographically approved
2. Techno-Economic Analysis of Active Optical Network Migration Toward Next-Generation Optical Access
Open this publication in new window or tab >>Techno-Economic Analysis of Active Optical Network Migration Toward Next-Generation Optical Access
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2017 (English)In: Journal of Optical Communications and Networking, ISSN 1943-0620, E-ISSN 1943-0639, Vol. 9, no 4, 327-341 p.Article in journal, Editorial material (Refereed) Published
Abstract [en]

Active optical networks (AONs) have been one of the most deployed fiber access solutions in Europe. However, with the increasing traffic demand, the capacity of the existing AONs is becoming insufficient. For the legacy AONs, there are two major variants of architectures, namely, point-to-point and active star. Considering the different characteristics of these two AON architectures, this paper proposes and analyzes several migration paths toward next-generation optical access (NGOA) networks offering a minimum 300 Mbit/s sustainable bit rate and 1 Gbit/s peak bit rate to every end customer. Furthermore, this paper provides detailed descriptions of the network cost modeling and the processes for AON migration. The total cost of ownership (TCO) is evaluated for the proposed migration paths, taking into account different migration starting times, customer penetration, node consolidation, and business roles in the fiber access networks. The migration from AON to NGOA can be economically feasible. The results indicate that a network provider plays a key business role and is responsible for the major part of the TCO for AON migration. Moreover, performing node consolidation during AON migration can be beneficial from a cost point of view, especially in rural areas.

Place, publisher, year, edition, pages
Optical Society of America, 2017
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-206983 (URN)10.1364/JOCN.9.000327 (DOI)000401370200020 ()2-s2.0-85017384390 (Scopus ID)
Funder
VINNOVAEU, FP7, Seventh Framework Programme, 249025
Note

QC 20170512

Available from: 2017-05-11 Created: 2017-05-11 Last updated: 2017-06-30Bibliographically approved
3. Methodology for a cost evaluation of migration toward NGOA networks
Open this publication in new window or tab >>Methodology for a cost evaluation of migration toward NGOA networks
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2013 (English)In: Journal of Optical Communications and Networking, ISSN 1943-0620, E-ISSN 1943-0639, Vol. 5, no 12, 1456-1466 p.Article in journal, Editorial material (Refereed) Published
Abstract [en]

Evolution of optical access networks promises to bring higher bandwidth to more customers. However, this evolution toward so-called next generation optical access (NGOA) networks also introduces additional challenges that operators and/or vendors have to address: how to properly estimate and compare different NGOA architectures and their evolutionary paths in terms of their economics. Calculating the total cost of ownership (TCO) for NGOA networks is a very complex target as it needs to involve good knowledge of the technology, the existing network infrastructure, and any migration-related processes. In this paper a complete methodology is presented for evaluating the TCO of the migration toward a NGOA network. It contains a detailed description of which key aspects have to be considered, which processes they affect, and how they are translated into costs in a logical manner. Finally, it also shows how this methodology has been applied to particular selected cases and how it gives a detailed view of all costs involved in migration. This approach opens up opportunities to cooperate in techno-economic research using it as a base. Both operators and vendors can also utilize this approach to get a useful economic background of their future investments and potential sales.

Keyword
Cost modeling, Migration, Next generation optical access (NGOA)
National Category
Computer Science Telecommunications
Identifiers
urn:nbn:se:kth:diva-140986 (URN)10.1364/JOCN.5.001456 (DOI)000328989300012 ()2-s2.0-84891516053 (Scopus ID)
Funder
EU, FP7, Seventh Framework Programme, 249025 (ICTOASE)
Note

QC 20140205

Available from: 2014-02-05 Created: 2014-02-05 Last updated: 2017-05-12Bibliographically approved
4. Total cost comparison of Next Generation Optical Access Networks with node consolidation
Open this publication in new window or tab >>Total cost comparison of Next Generation Optical Access Networks with node consolidation
2012 (English)In: 2012 17th European Conference on Networks and Optical Communications, IEEE conference proceedings, 2012, 1-6 p.Conference paper, Published paper (Refereed)
Abstract [en]

Next Generation Optical Access Networks (NGOA) are being evaluated based on their maximum reach, the offered bandwidth per user, their client count and their cost. A complete cost assessment of these architectures should take into account not only the required equipment and infrastructure, but also the continuous cost of fault management, service provisioning, network maintenance, power, etc. This paper presents the models used for the cost assessment. Furthermore, a complete cost assessment of four NGOA architectures at three different types of areas for two different node consolidation degrees is given.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2012
Keyword
optical fibre subscriber loops;cost assessment;fault management;network maintenance;next generation optical access networks node consolidation;power;service provisioning;total cost comparison;Maintenance engineering;Optical fiber cables;Optical fibers;Passive optical networks;Wavelength division multiplexing;capital expenditures;next generation optical access networks;operational expenditures
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-206984 (URN)10.1109/NOC.2012.6249940 (DOI)
Conference
2012 17th European Conference on Networks and Optical Communications
Note

QC 20170512

Available from: 2017-05-11 Created: 2017-05-11 Last updated: 2017-05-12Bibliographically approved
5. Cost-based assessment of NGOA architectures and its impact in the business model
Open this publication in new window or tab >>Cost-based assessment of NGOA architectures and its impact in the business model
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2012 (English)In: 11th Conference of Telecommunication, Media and Internet Techno-Economics, Proceedings, Ghent University, Department of Information technology , 2012, 1-6 p.Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Ghent University, Department of Information technology, 2012
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-206985 (URN)
Conference
11th Conference of Telecommunication, Media and Internet Techno-Economics
Note

QC 20170512

Available from: 2017-05-11 Created: 2017-05-11 Last updated: 2017-05-12Bibliographically approved
6. A Comparative Model and Techno-Economic Analysis of Next Generation AON Ethernet and TDM PON
Open this publication in new window or tab >>A Comparative Model and Techno-Economic Analysis of Next Generation AON Ethernet and TDM PON
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2010 (English)In: Network Architectures, Management, and Applications VIII, Optical Society of America, 2010Conference paper, Published paper (Refereed)
Abstract [en]

A global reference model covering next generation active and passive networks has been developed for techno-economic evaluations, and an extensive techno-economic analysis with a focus on CAPEX has been performed for 10G TDM PON and 1G AON - both capable of delivering 1Gbit/s to end-users. Two major cases have been considered: urban and rural at green field deployment. The results show that AON is less expensive than PON solution in urban case while in rural case 10G TDM PON is more competitive.

Place, publisher, year, edition, pages
Optical Society of America, 2010
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-206986 (URN)10.1364/ACP.2010.79890W (DOI)
Conference
2010 Asia Communications and Photonics Conference and Exhibition
Note

QC 20170512

Available from: 2017-05-11 Created: 2017-05-11 Last updated: 2017-05-12Bibliographically approved
7. First Experimental Demonstration of Orchestration of Optical Transport, RAN andCloud based on SDN
Open this publication in new window or tab >>First Experimental Demonstration of Orchestration of Optical Transport, RAN andCloud based on SDN
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2015 (English)In: Optical Fiber Communication Conference Post Deadline Papers, Optical Society of America , 2015Conference paper, Published paper (Refereed)
Abstract [en]

We design and experimentally demonstrate the first resource orchestrationacross DWDM optical transport, radio access networks (RANs) and cloud domains basedon SDN. The orchestration enables agile service creation and optimized resourceallocation.

Place, publisher, year, edition, pages
Optical Society of America, 2015
Keyword
Networks, wavelength routing, SDN, RAN, Optical Transport Network
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-206987 (URN)10.1364/OFC.2015.Th5A.7 (DOI)
Conference
Optical Fiber Communication Conference
Note

QC 20170512

Available from: 2017-05-11 Created: 2017-05-11 Last updated: 2017-05-12Bibliographically approved

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