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Publications (10 of 138) Show all publications
Raza, M. R., Fiorani, M., Rostami, A., Öhlen, P., Wosinska, L. & Monti, P. (2018). Dynamic Slicing Approach for Multi-Tenant 5G Transport Networks. Paper presented at Optical Fiber Communications Conference and Exhibition (OFC), Mar 19-23, 2017, Los Angeles, CA. Journal of Optical Communications and Networking, 10(1), A77-A90
Open this publication in new window or tab >>Dynamic Slicing Approach for Multi-Tenant 5G Transport Networks
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2018 (English)In: Journal of Optical Communications and Networking, ISSN 1943-0620, E-ISSN 1943-0639, Vol. 10, no 1, p. A77-A90Article in journal (Refereed) Published
Abstract [en]

Software defined networking allows network providers to share their physical network (PN) among multiple tenants by means of network slicing, where several virtual networks (VNs) are provisioned on top of the physical one. In this scenario, PN resource utilization can be improved by introducing advanced orchestration functionalities that can intelligently assign and redistribute resources among the slices of different tenants according to the temporal variation of the VN resource requirements. This is a concept known as dynamic slicing. This paper presents a solution for the dynamic slicing problem in terms of both mixed integer linear programming formulations and heuristic algorithms. The benefits of dynamic slicing are compared against static slicing, i.e., an approach without intelligent adaptation of the amount of resources allocated to each VN. Simulation results show that dynamic slicing can reduce the VN rejection probability by more than 1 order of magnitude compared to static slicing. This can help network providers accept more VNs into their infrastructure and potentially increase their revenues. The benefits of dynamic slicing come at a cost in terms of service degradation (i.e., when not all the resources required by a VN can be provided), but the paper shows that the service degradation level introduced by the proposed solutions is very small.

Place, publisher, year, edition, pages
Optical Society of America, 2018
Keywords
5G transport, Dynamic slicing, IP over WDM, Multi-tenant networks, Network virtualization, Software defined networking
National Category
Communication Systems
Identifiers
urn:nbn:se:kth:diva-223287 (URN)10.1364/JOCN.10.000A77 (DOI)000424046200011 ()2-s2.0-850422732862-s2.0-85042273286 (Scopus ID)
Conference
Optical Fiber Communications Conference and Exhibition (OFC), Mar 19-23, 2017, Los Angeles, CA
Funder
EU, Horizon 2020, 671636VINNOVA, Kista 5G Transport Lab (K5) project
Note

QC 20180219

Available from: 2018-02-19 Created: 2018-02-19 Last updated: 2018-05-16Bibliographically approved
Li, Y., Mårtensson, J., Fiorani, M., Skubic, B., Ghebretensaé, Z., Zhao, Y., . . . Monti, P. (2018). Flexible RAN: A Radio Access Network Concept with Flexible Functional Splits and a Programmable Optical Transport. In: 2017 European Conference on Optical Communication (ECOC): . Paper presented at 43rd European Conference on Optical Communication, ECOC 2017, Gothenburg, Sweden, 17 September 2017 through 21 September 2017 (pp. 1-3). Institute of Electrical and Electronics Engineers (IEEE)
Open this publication in new window or tab >>Flexible RAN: A Radio Access Network Concept with Flexible Functional Splits and a Programmable Optical Transport
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2018 (English)In: 2017 European Conference on Optical Communication (ECOC), Institute of Electrical and Electronics Engineers (IEEE), 2018, p. 1-3Conference paper, Published paper (Refereed)
Abstract [en]

We present the flexible RAN concept and evaluate its performance in different radio coordination scenarios considering an optical transport network. Results show the benefits of flexible RAN compared to C-RAN in terms of wavelength usage and transponder cost.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018
National Category
Communication Systems
Identifiers
urn:nbn:se:kth:diva-228558 (URN)10.1109/ECOC.2017.8345857 (DOI)2-s2.0-85046953276 (Scopus ID)9781538656242 (ISBN)
Conference
43rd European Conference on Optical Communication, ECOC 2017, Gothenburg, Sweden, 17 September 2017 through 21 September 2017
Funder
VINNOVA
Note

QC 20180528

Available from: 2018-05-28 Created: 2018-05-28 Last updated: 2018-05-28Bibliographically approved
Muhammad, A., Monti, P., Samadi, P., Wosinska, L. & Bergman, K. (2018). Joint Allocation of IT and Connectivity Resources for Survivable Services in Geographically Distributed Metro Data Centers. In: 2017 European Conference on Optical Communication (ECOC): . Paper presented at 43rd European Conference on Optical Communication, ECOC 2017, Gothenburg, Sweden, 17 September 2017 through 21 September 2017 (pp. 1-3). Institute of Electrical and Electronics Engineers (IEEE)
Open this publication in new window or tab >>Joint Allocation of IT and Connectivity Resources for Survivable Services in Geographically Distributed Metro Data Centers
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2018 (English)In: 2017 European Conference on Optical Communication (ECOC), Institute of Electrical and Electronics Engineers (IEEE), 2018, p. 1-3Conference paper, Published paper (Refereed)
Abstract [en]

The paper proposes a survivable and programmable metro-scale converged inter- and intra-datacenter network architecture and exploits its unique features for allocating jointly IT and connectivity resources. The proposed dynamic provisioning strategy offers a substantial reduction of service request blocking.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018
National Category
Communication Systems
Identifiers
urn:nbn:se:kth:diva-228554 (URN)10.1109/ECOC.2017.8345988 (DOI)2-s2.0-85046952783 (Scopus ID)9781538656242 (ISBN)
Conference
43rd European Conference on Optical Communication, ECOC 2017, Gothenburg, Sweden, 17 September 2017 through 21 September 2017
Funder
Swedish Research Council, 2014-6230EU, Horizon 2020, 671636VINNOVA
Note

QC 20180528

Available from: 2018-05-28 Created: 2018-05-28 Last updated: 2018-05-28Bibliographically approved
Muhammad, A., Sgambelluri, A., Dugeon, O., Martin-Perez, J., Paolucci, F., De Dios, O. G., . . . Monti, P. (2018). On the scalability of connectivity services in a multi-operator orchestrator sandbox. In: Optics InfoBase Conference Papers: . Paper presented at Optical Fiber Communication Conference, OFC 2018, San Diego, United States, 11 March 2017 through 15 March 2017. Optics Info Base, Optical Society of America
Open this publication in new window or tab >>On the scalability of connectivity services in a multi-operator orchestrator sandbox
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2018 (English)In: Optics InfoBase Conference Papers, Optics Info Base, Optical Society of America, 2018Conference paper, Published paper (Refereed)
Abstract [en]

The paper investigates the performance of a multi-domain orchestrator (MdO) deployed in a real multi-domain European testbed. Results show how the MdO prototype scales well with the number of domains advertised and connectivity services provisioned.

Place, publisher, year, edition, pages
Optics Info Base, Optical Society of America, 2018
National Category
Communication Systems
Identifiers
urn:nbn:se:kth:diva-228666 (URN)10.1364/OFC.2018.M2A.2 (DOI)2-s2.0-85047127876 (Scopus ID)9781557528209 (ISBN)
Conference
Optical Fiber Communication Conference, OFC 2018, San Diego, United States, 11 March 2017 through 15 March 2017
Note

QC 20180529

Available from: 2018-05-29 Created: 2018-05-29 Last updated: 2018-05-29Bibliographically approved
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
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, article id 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
Keywords
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, p. 1847-1857Article 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
Keywords
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
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, p. 6-7, article id 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
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-5636-9910

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