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Publications (10 of 131) Show all publications
Sgambelluri, A., Milani, A., Czentye, J., Melian, J., Poe, W. Y., Tusa, F., . . . Szabo, R. (2017). A Multi-Operator Network Service Orchestration Prototype: The 5G Exchange. In: 2017 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC): . Paper presented at Optical Fiber Communications Conference and Exhibition (OFC), MAR 19-23, 2017, Los Angeles, CA. IEEE.
Open this publication in new window or tab >>A Multi-Operator Network Service Orchestration Prototype: The 5G Exchange
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2017 (English)In: 2017 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC), IEEE , 2017Conference paper, Published paper (Refereed)
Abstract [en]

In the context of the 5GEx Project, a Multi-domain Orchestrator is in charge of creating, deploying, and terminating Network Services spanning across multiple-operators. This live demo showcases the main functionalities of the 5GEx system.

Place, publisher, year, edition, pages
IEEE, 2017
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-210960 (URN)10.1364/OFC.2017.Tu3L.15 (DOI)000403405800490 ()2-s2.0-85019838362 (Scopus ID)978-1-943580-23-1 (ISBN)
Conference
Optical Fiber Communications Conference and Exhibition (OFC), MAR 19-23, 2017, Los Angeles, CA
Note

QC 20170712

Available from: 2017-07-12 Created: 2017-07-12 Last updated: 2017-07-12Bibliographically approved
Yaghoubi, F., Mahloo, M., Wosinska, L., Monti, P., Farias, F. d. & Costa, J. C. (2017). A Techno-Economic Framework for 5G Transport Networks. .
Open this publication in new window or tab >>A Techno-Economic Framework for 5G Transport Networks
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2017 (English)Article in journal (Other academic) Submitted
Abstract [en]

Wireless heterogeneous networks (HetNets) are a cost- and an energy-efficient alternative to provide high capacity to end users in the future 5G communication systems. However, the transport segment of a radio access network (RAN) poses a big challenge in terms of cost and energy consumption. In fact, if not planned properly its resulting high cost might limit the benefits of using small cells and impact the revenues of mobile network operators. Therefore, it is essential to be able to properly assess the economic viability of different transport techonolgies as well as their impact on the cost and profitability of a HetNets deployment (i.e., RAN + transport).

This paper first presents a general and comprehensive techno-economic framework able to assess not only the total cost of ownership (TCO) but also the business viability of a HetNets deployment. It then applies it to the specific case study of a backhaul-based transport segment. In the evaluation work two technology options for the transport network are considered (i.e., microwave and fiber) assuming both a homogeneous (i.e., macro cells only) and a HetNet deployments. Our results demonstrate the importance of selecting the right technology and deployment strategy in order not to impact the economic benefits of a HetNet deployment. Moreover, the results also reveal that a deployment solution with the lowest TCO does not always lead to the highest profit.  

National Category
Communication Systems
Identifiers
urn:nbn:se:kth:diva-202939 (URN)
Note

QCR 20170308

Available from: 2017-03-07 Created: 2017-03-07 Last updated: 2017-03-08Bibliographically approved
Rostami, A., Vidal, A., Santos, M. A., Raza, M. R., Moradi, F., Pechenot, B., . . . Ohlen, P. (2017). An End-to-End Programmable Platform for Dynamic Service Creation in 5G Networks. In: 2017 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC): . Paper presented at Optical Fiber Communications Conference and Exhibition (OFC), MAR 19-23, 2017, Los Angeles, CA. IEEE.
Open this publication in new window or tab >>An End-to-End Programmable Platform for Dynamic Service Creation in 5G Networks
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2017 (English)In: 2017 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC), IEEE , 2017Conference paper, Published paper (Refereed)
Abstract [en]

We demonstrate how SDN and NFV can bring end-to-end programmability to heterogeneous technology domains including optical transport, radio and cloud networks, which can in turn be leveraged for agile and resource-optimized service creation.

Place, publisher, year, edition, pages
IEEE, 2017
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-210958 (URN)10.1364/OFC.2017.Tu3L.14 (DOI)000403405800489 ()2-s2.0-85019956927 (Scopus ID)978-1-943580-23-1 (ISBN)
Conference
Optical Fiber Communications Conference and Exhibition (OFC), MAR 19-23, 2017, Los Angeles, CA
Note

QC 20170713

Available from: 2017-07-13 Created: 2017-07-13 Last updated: 2017-07-13Bibliographically approved
Rostami, A., Vidal, A., Santos, M. A., Raza, M. R., Moradi, F., Pechenot, B., . . . Öhlén, P. (2017). An end-to-end programmable platform for dynamic service creation in 5g networks. In: 2017 Optical Fiber Communications Conference and Exhibition, OFC 2017 - Proceedings: . Paper presented at 2017 Optical Fiber Communications Conference and Exhibition, OFC 2017, 19 March 2017 through 23 March 2017. Institute of Electrical and Electronics Engineers Inc..
Open this publication in new window or tab >>An end-to-end programmable platform for dynamic service creation in 5g networks
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2017 (English)In: 2017 Optical Fiber Communications Conference and Exhibition, OFC 2017 - Proceedings, Institute of Electrical and Electronics Engineers Inc. , 2017Conference paper, Published paper (Refereed)
Abstract [en]

We demonstrate how SDN and NFV can bring end-to-end programmability to heterogeneous technology domains including optical transport, radio and cloud networks, which can in turn be leveraged for agile and resource-optimized service creation.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc., 2017
Keyword
Optical fibers, Queueing networks, Cloud networks, Dynamic services, G-networks, Heterogeneous technology, Optical transport, Programmability, Programmable platforms, Service creation, Optical fiber communication
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-216487 (URN)2-s2.0-85025810762 (Scopus ID)9781943580231 (ISBN)
Conference
2017 Optical Fiber Communications Conference and Exhibition, OFC 2017, 19 March 2017 through 23 March 2017
Note

QC 20171212

Available from: 2017-12-12 Created: 2017-12-12 Last updated: 2017-12-12Bibliographically approved
Guerzoni, R., Vaishnavi, I., Perez caparros, D., Galis, A., Tusa, F., Monti, P., . . . Szabo, R. (2017). Analysis of end-to-end multi-domain management and orchestration frameworks for software defined infrastructures: An architectural survey. Transactions on Emerging Telecommunications Technologies, 28(4), Article ID e3103.
Open this publication in new window or tab >>Analysis of end-to-end multi-domain management and orchestration frameworks for software defined infrastructures: An architectural survey
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2017 (English)In: Transactions on Emerging Telecommunications Technologies, ISSN 2161-5748, Vol. 28, no 4, e3103Article in journal (Refereed) Published
Abstract [en]

Over the last couple of years, industry operators' associations issued requirements towards an end-to-end management and orchestration plane for 5G networks. Consequently, standard organisations started their activities in this domain. This article provides an analysis and an architectural survey of these initiatives and of the main requirements, proposes descriptions for the key concepts of domain, resource and service slicing, end-to-end orchestration and a reference architecture for the end-to-end orchestration plane. Then, a set of currently available or under development domain orchestration frameworks are mapped to this reference architecture. These frameworks, meant to provide coordination and automated management of cloud and networking resources, network functions and services, fulfil multi-domain (i.e. multi-technology and multi-operator) orchestration requirements, thus enabling the realisation of an end-to-end orchestration plane. Finally, based on the analysis of existing single-domain and multi-domain orchestration components and requirements, this paper presents a functional architecture for the end-to-end management and orchestration plane, paving the way to its full realisation.

Place, publisher, year, edition, pages
Wiley-Blackwell, 2017
Keyword
Network architecture, Automated management, End-to-End management, Functional architecture, Multi domains, Multi operators, Network functions, Reference architecture, Single domains, Surveys
National Category
Telecommunications
Identifiers
urn:nbn:se:kth:diva-195436 (URN)10.1002/ett.3103 (DOI)000400760700019 ()2-s2.0-84987617979 (Scopus ID)
Note

QC 20170613

Available from: 2016-11-18 Created: 2016-11-03 Last updated: 2017-06-13Bibliographically approved
Udalcovs, A., Schatz, R., Wosinska, L. & Monti, P. (2017). Analysis of Spectral and Energy Efficiency Tradeoff in Single-Line Rate WDM Links. Journal of Lightwave Technology, 35(10), 1847-1857.
Open this publication in new window or tab >>Analysis of Spectral and Energy Efficiency Tradeoff in Single-Line Rate WDM Links
2017 (English)In: Journal of Lightwave Technology, ISSN 0733-8724, E-ISSN 1558-2213, Vol. 35, no 10, 1847-1857 p.Article in journal (Refereed) Published
Abstract [en]

This paper investigates, through simulations, the tradeoff between energy efficiency (EE) and the overall spectral efficiency (SE) of fiber optic links for a given capacity and a link length. The comparison is made for various modulation formats, span lengths, and with/without using forward error correction (FEC). The power consumption of the different system components is estimated from the data sheets of the state-of-the-art equipment. Results show that the use of long single-mode fiber spans (i.e., more than 40 km) improves EE when coherent modulation formats are used. However, with noncoherent formats, the span length must be selected depending on SE, aggregated traffic amount needs to be transmitted, and link length. For almost all modulation formats, FEC reduces the overall energy consumption despite being one of the main power consumers in fiber optic communication systems. The power consumption of 3Rs becomes particularly important when the linear crosstalk limits the system reach. In all other cases, the power consumption of transponders and optical line amplifiers is dominating, but their contribution changes depending on the aggregated traffic amount and system reach.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2017
Keyword
3R regeneration, energy efficiency, energy per bit, forward-error correction, modulation formats, span length, spectral efficiency
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-207655 (URN)10.1109/JLT.2017.2651165 (DOI)000399986700011 ()2-s2.0-85018908373 (Scopus ID)
Note

QC 20170607

Available from: 2017-06-07 Created: 2017-06-07 Last updated: 2017-11-10Bibliographically approved
Raza, M. R., Fiorani, M., Rostami, A., Öhlen, P., Wosinska, L. & Monti, P. (2017). Benefits of programmability in 5G transport networks. In: 2017 Optical Fiber Communications Conference and Exhibition, OFC 2017 - Proceedings: . Paper presented at 2017 Optical Fiber Communications Conference and Exhibition, OFC 2017, 19 March 2017 through 23 March 2017. Institute of Electrical and Electronics Engineers Inc..
Open this publication in new window or tab >>Benefits of programmability in 5G transport networks
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2017 (English)In: 2017 Optical Fiber Communications Conference and Exhibition, OFC 2017 - Proceedings, Institute of Electrical and Electronics Engineers Inc. , 2017Conference paper, Published paper (Refereed)
Abstract [en]

This paper shows how programmability can improve operators' revenues and it presents a dynamic resource slicing policy that leads to more than one order of magnitude better resource utilization levels than convectional (static) allocation strategies.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc., 2017
Keyword
Optical fibers, Allocation strategy, Dynamic resources, Programmability, Resource utilizations, Transport networks, Optical fiber communication
National Category
Communication Systems
Identifiers
urn:nbn:se:kth:diva-216481 (URN)2-s2.0-85025804311 (Scopus ID)9781943580231 (ISBN)
Conference
2017 Optical Fiber Communications Conference and Exhibition, OFC 2017, 19 March 2017 through 23 March 2017
Note

QC 20171212

Available from: 2017-12-12 Created: 2017-12-12 Last updated: 2017-12-12Bibliographically approved
Lorincz, J., Meo, M., Alsusa, E., Ruffini, M., Monti, P., Saavedra, A. G. & Ho, C. K. (2017). Conference Report/IEEE OnlineGreenComm 2016. IEEE Communications Magazine, 55(1), 6-7, Article ID 7823325.
Open this publication in new window or tab >>Conference Report/IEEE OnlineGreenComm 2016
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2017 (English)In: IEEE Communications Magazine, ISSN 0163-6804, E-ISSN 1558-1896, Vol. 55, no 1, 6-7 p., 7823325Article in journal (Other academic) Published
Place, publisher, year, edition, pages
IEEE, 2017
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-202839 (URN)10.1109/MCOM.2017.7823325 (DOI)2-s2.0-85009973151 (Scopus ID)
Note

QC 20170317

Available from: 2017-03-17 Created: 2017-03-17 Last updated: 2017-11-29Bibliographically approved
Wiatr, P., Chen, J., Monti, P., Wosinska, L. & Yuan, D. (2017). Device Reliability Performance Awareness: Impact of RWA on EDFA Failure Reparation Cost in Optical Networks. IEEE.
Open this publication in new window or tab >>Device Reliability Performance Awareness: Impact of RWA on EDFA Failure Reparation Cost in Optical Networks
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2017 (English)Book (Other academic)
Abstract [en]

High reliability performance of network is essential to minimize the possible network service interruption time, particularly in optical backbone networks where a large amount of data can be affected by a single failure. The existing studies on improvement of network reliability performance assume that failures of network devices are not related to the traffic load, which on the other hand, is not always true. For example, the lifetime of erbium doped fiber amplifier (EDFA) depends on the number of amplified lightpaths passing through. Encouraged by this observation, in this paper, we investigate the impact of used routing and wavelength assignment (RWA) algorithm on the number of failures in the network, and as a consequence on the network operational cost related to the failure reparation. We propose and evaluate a novel RWA approach, referred to as reliability performance aware RWA (RA-RWA), taking into account particular EDFA reliability performance characteristics with the goal of reducing the number of EDFA failures. The assessment results show that the operational cost related to EDFA failure reparation is impacted by the chosen RWA. The proposed RA-RWA provides 6% reduction, while other analyzed RWA algorithm, i.e., least loaded path (LLP), causes significant rise (up to 27%) of EDFA related failure reparation cost compared to the classical shortest path (SP) approach. In addition, RA-RWA offers further benefits in terms of reduced blocking probability compared to the SP. Concluding, we show that considering device reliability performance characteristics in RWA is important for the optical network operators as it can impact the network operational cost related to EDFA failure reparation.

Place, publisher, year, edition, pages
IEEE, 2017
Series
PROCEEDINGS OF 2017 9TH INTERNATIONAL WORKSHOP ON RESILIENT NETWORKS DESIGN AND MODELING (RNDM)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-220657 (URN)000417436900015 ()
Note

QC 20170109

Available from: 2018-01-09 Created: 2018-01-09 Last updated: 2018-01-09Bibliographically approved
Natalino, C., Idzikowski, F., Chiaraviglio, L., Wosinska, L. & Monti, P. (2017). EFAH: an Energy and Fatigue Aware Heuristic for Provisioning Highly Available Connections in Optical Backbone Networks. IEEE.
Open this publication in new window or tab >>EFAH: an Energy and Fatigue Aware Heuristic for Provisioning Highly Available Connections in Optical Backbone Networks
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2017 (English)Book (Other academic)
Abstract [en]

Optical backbone operators need to meet the availability requirements specified in the Service Level Agreements (SLAs). While less stringent availability constraints, i.e., less than three 9's might be met by provisioning connections without any protection, more stringent requirements, i.e., five 9' s, force operator to use proactive protection strategies. The connection provisioning process becomes more cost-efficient when green aspects are considered. On the other hand, energy awareness introduces thermal fatigue effects, which may in turn lower the lifetime of devices that undergo frequent power state transitions, i.e., between Active Mode (AM) and Sleep Mode (SM). As a result the availability level experienced by the unprotected connections may decrease. At the same time, with devices failing more frequently the protection level chosen for a given connection might not be enough to guarantee the required average connection availability performance. This work tackles the problem of managing an optical backbone network when green and thermal fatigue aspects are introduced. We propose an Energy and Fatigue Aware Heuristic (EFAH) that is able to balance between thermal fatigue effects and energy saving performance. When compared to the pure Energy-Aware (EA) strategies, EFAH manages to significantly improve the value of the average connection availability of both unprotected and protected connections. On the other hand, there is a price to pay in terms of lower energy saving performance.

Place, publisher, year, edition, pages
IEEE, 2017
Series
PROCEEDINGS OF 2017 9TH INTERNATIONAL WORKSHOP ON RESILIENT NETWORKS DESIGN AND MODELING (RNDM)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Electrical Engineering, Electronic Engineering, Information Engineering Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-220655 (URN)000417436900016 ()
Note

QC 20170109

Available from: 2018-01-09 Created: 2018-01-09 Last updated: 2018-01-09Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-5636-9910

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