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  • 1.
    Chin, Houman
    et al.
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Forzati, Marco
    RISE., Swedish ICT, Acreo.
    Volterra based nonlinear compensation on 224 Gb/s PolMux-16QAM optical fibre link2012Inngår i: Optics InfoBase Conference Papers, 2012Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We demonstrate the performance of a nonlinear compensation scheme based on the Volterra Series on a 224 Gb/s PolMux-16QAM system over 250 km of fibre and comment on its improvement in performance over linear equalization.

  • 2. Chughtai, M. N.
    et al.
    Forzati, M.
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Rafique, D.
    Influence of polarization state, baud rate PMD on non-linear impairments in WDM systems with mixed PM (D)QPSK OOK channels2012Inngår i: Optics Express, E-ISSN 1094-4087, Vol. 20, nr 7, s. 8155-60Artikkel i tidsskrift (Fagfellevurdert)
  • 3.
    Djupsjöbacka, Anders
    et al.
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    A Method to Calculate PMD-Induced Eye-Opening Penalty Signal Outage for RZ-Modulated Signal Formats2008Inngår i: IEEE transactions on intelligent transportation systems (Print), ISSN 1524-9050, E-ISSN 1558-0016, Vol. 26, s. 3186-89Artikkel i tidsskrift (Fagfellevurdert)
  • 4.
    Djupsjöbacka, Anders
    et al.
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Källgren, Dan
    TeliaSonera AB, Sweden.
    Measured Temporal statistics of the DGD RMS-Value in Buried Optical Fibers2009Inngår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 21, nr 24, s. 1801-1803Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The behavior of the differential group delay (DGD)root-mean-square (rms) value is investigated for a buried G.652fiber line in a metropolitan fiber plant outside Stockholm, Sweden.This study presents measurement results from two different mea-surement periods where the same fiber and the same measurementequipment was used. In total,2800 hours of measurements wereperformed. As expected, the recorded DGD rms-value variedwith time. The measured standard deviation for the statistics ofthe DGD rms-value fits reasonably well with values presentedin literature. The fiber line, which showed a DGD rms-value of0.45 ps in average, had an extremely long time constant. Evenafter2800 hours of measurements we have not closed in on theexpected asymptotic distribution of the measured DGD rms-value

  • 5.
    Djupsjöbacka, Anders
    et al.
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Åstlund, L
    Proximion Fiber Systems AB, Sweden.
    Estimating Eye-opening Penalty with Aid of the Ripple Function of Fiber Bragg-gratings2007Inngår i: Journal of Optical Communications, Vol. 28, s. 91-95Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We investigate six different methods presented in litera-ture to estimate eye-opening penalty for dispersion-com-pensating fiber Bragg gratings with aid of the grating’s ripple function. The investigation is based on theoretical ripple functions as well on measurement results of three continuously chirped gratings. The gratings in question offer full wavelength coverage between 1530 nm and 1565 nm. We will show that the eye-opening penalty de-pends on the phase and frequency of the grating’s ripple function as well as to pattern length and to pulse form of the signal used. Since the estimation methods do not ac-count for these properties, their accuracy is shown to be limited.

  • 6.
    Fiorani, Matteo
    et al.
    KTH Royal Institute of Technology, Sweden.
    Skubic, Björn
    Ericsson Research, Sweden.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Valcarenghi, Luca
    Sant'Anna School of Advanced Studies, Italy.
    Castoldi, Piero
    Sant'Anna School of Advanced Studies, Italy.
    Wosinska, Lena
    KTH Royal Institute of Technology, Sweden.
    Monti, Paolo
    KTH Royal Institute of Technology, Sweden.
    On the design of 5G transport networks2015Inngår i: Photonic network communications, ISSN 1387-974X, E-ISSN 1572-8188, Vol. 30, nr 3, s. 403-415Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Future 5G systems will pave the way to a completely new societal paradigm where access to information will be available anywhere, anytime, and to anyone or anything. Most of the ongoing research and debate around 5G systems are focusing on the radio network segment (e.g., how to offer high peak-rates per subscriber, and how to handle a very large number of simultaneously connected devices without compromising on coverage, outage probability, and latency). On the other hand, understanding the impact that 5G systems will have on the transport network (i.e., the segment in charge of the backhaul of radio base stations and/or the fronthaul of remote radio units) is also very important. This paper provides an analysis of the key architectural challenges for the design of a flexible 5G transport infrastructure able to adapt in a cost-efficient way to the plethora of requirements coming from the large number of envisioned future 5G services.

  • 7.
    Fiorani, Matteo
    et al.
    KTH Royal Institute of Technology, Sweden.
    Tombaz, Sibel
    Ericsson Research, Sweden.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Skubic, Björn
    Ericsson Research, Sweden.
    Wosinska, Lena
    KTH Royal Institute of Technology, Sweden.
    Monti, Paolo
    KTH Royal Institute of Technology, Sweden.
    Energy performance of C-RAN with 5G-NX radio networks and optical transport2016Inngår i: 2016 IEEE International Conference on Communications (ICC), 2016Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Each mobile network architecture able to meet the traffic requirements of future 5G services comes with its own set of benefits vs. requirements for the radio and the transport segments. This paper focuses on the energy performance of four mobile network architectures, each one with different splitting options for the baseband processing functions. The radio segment under exam is based on a new radio access technology referred to as 5G-NX, while the transport segment is based on wavelength division multiplexing (WDM). The energy consumption of each mobile network architecture is weighted against (i) the benefits for the radio segment as a function of the level of centralization of the baseband processing resources and (ii) the required transport capacity and consequently the power consumption levels needed to accommodate the backhaul, midhaul, and/or fronthaul traffic generated at each base station. Our results show that a fully centralized radio access network (C-RAN) with centralization of all the baseband functions is not a practical approach for 5G mobile networks, while a partially centralized C-RAN architecture in which the physical layer baseband processing is performed at the base station site represents a promising solution.

  • 8.
    Fiorani, Matteo
    et al.
    KTH Royal Institute of Technology, Sweden.
    Tombaz, Sibel
    Ericsson Research, Sweden.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Skubic, Björn
    Ericsson Research, Swede.
    Wosinska, Lena
    KTH Royal Institute of Technology, Sweden.
    Monti, Paolo
    KTH Royal Institute of Technology, Sweden.
    Modeling energy performance of C-RAN with optical transport in 5G network scenarios2016Inngår i: Journal of Optical Communications and Networking, ISSN 1943-0620, E-ISSN 1943-0639, Vol. 8, nr 11, s. B21-B34Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The deployment of new 5G wireless interfaces based on massive multiantenna transmission and beamforming is expected to have a significant impact on the complexity and power consumption of the transport network. This paper analyzes the energy performance of four radio access network (RAN) architectures, each one utilizing a different option for splitting the baseband processing functions. The radio segment is based on Long-Term Evolution (LTE) and 5G radio access technologies. The transport segment is based on optical wavelength division multiplexing, where coherent and direct detection transmissions are considered. The energy consumption of each RAN architecture is weighted against i) the benefits for the radio segment as a function of the level of centralization of the baseband processing functions and ii) the power consumption levels needed to accommodate the capacity generated at each base station. Results show that, with LTE radio interfaces, the energy consumption of the transport network amounts to only a few percent of the overall network power consumption. As a result, fully centralized LTE radio architectures are a viable option, with energy savings of at least 27% compared with conventional distributed architectures. On the other hand, with advanced 5G radio interfaces, centralized architectures, if not carefully designed, might become impractical due to the excessive energy consumption of the transport network (i.e., as a result of the huge capacity to be accommodated). This aspect can be mitigated via a careful joint design of the radio and the transport network (i.e., leveraging on appropriate optical transmission techniques and compromising where needed on the radio network performance).

  • 9.
    Fiorarli, Matteo
    et al.
    KTH Royal Institute of Technology, Sweden.
    Monti, Paolo
    KTH Royal Institute of Technology, Sweden.
    Skubic, Björn
    Ericsson AB, Sweden.
    Martensson, Jonas
    RISE., Swedish ICT, Acreo.
    Valcarenghi, Luca
    Scuola Superiore sant'Anna, Italy.
    Castoldi, Piero
    Scuola Superiore sant'Anna, Italy.
    Wosinska, Lena
    KTH Royal Institute of Technology, Sweden.
    Challenges for 5G transport networks2014Inngår i: 2014 IEEE International Conference on Advanced Networks and Telecommunication Systems, ANTS 2014, 2014, artikkel-id 7057286Konferansepaper (Fagfellevurdert)
    Abstract [en]

    5G mobile communications is seen as the enabler for the networked society where connectivity will be available anywhere and anytime to anyone and anything. The details of 5G are the subject to ongoing research and debate, mostly focused on understanding radio technologies that can enable the 5G vision. So far, less work has been dedicated to the challenges that 5G will pose to the transport network. This paper provides a first analysis of the key challenges to 5G transport in terms of capacity, flexibility and costs, for example. Different use cases are discussed as well as technology options and control plane concepts.

  • 10.
    Forzati, Marco
    et al.
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    IFWM Suppression Using APRZ with Optimized Phase-Modulation Parameters2004Inngår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 16, s. 2368-70Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We demonstrate experimentally as well as numerically that the alternate-phase return-to-zero modulation format increases the nonlinear tolerance of strongly dispersion-managed 40-Gb/s transmission. An analysis of phase misalignment is also presented.

  • 11.
    Forzati, Marco
    et al.
    RISE., Swedish ICT, Acreo, Broadband Technology.
    Anders, Berntson
    RISE., Swedish ICT, Acreo, Broadband Technology.
    Mårtensson, Jonas
    RISE., Swedish ICT, Viktoria.
    Polarisation Modulation Scheme for intra-channel non-linear suppression2007Patent (Annet (populærvitenskap, debatt, mm))
  • 12.
    Forzati, Marco
    et al.
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Davies, R. J.
    Performance Analysis of Single-MZM APRZ Transmitters2006Inngår i: IEEE transactions on intelligent transportation systems (Print), ISSN 1524-9050, E-ISSN 1558-0016, Vol. 24, s. 2006-14Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In this paper, an efficient single Mach-Zender modulator (MZM) implementation of alternate-phase return to zero (APRZ), which combines carrier-suppressed return to zero (CSRZ)'s ease of implementation with APRZ's nonlinear tolerance, is analyzed. In particular, the first numerical study of 67%-duty-cycle single-MZM APRZ over a 40-Gb/s 5 × 100-km link, in terms of nonlinear, dispersion, and filtering tolerance, comparing it with 33% RZ, 33% APRZ, and standard 67% CSRZ, is presented. The results show that APRZ with phase shift close to π/2 is the optimum choice, independent of specific transmitter implementation. A new mechanism is also discovered, based on the interference of ghost pulses with the original pulse train, which improves the nonlinear tolerance of CSRZ in a 40-Gb/s transmission

  • 13.
    Forzati, Marco
    et al.
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Djupsjöbacka, Anders
    RISE., Swedish ICT, Acreo.
    Asynchronous Phase Modulation for the Suppression of IFWM2007Inngår i: IEEE transactions on intelligent transportation systems (Print), ISSN 1524-9050, E-ISSN 1558-0016, Vol. 25, s. 2969-75Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Intrachannel four-wave mixing (IFWM) represents main source of impairments in fiber transmission at 40 Gb/s. A number of phase modulation techniques have been proposed to suppress the IFWM. In this paper, we study a cost-effective way of increasing the nonlinear tolerance of a 40-Gb/s wavelength division multiplexing transmission system by asynchronous phase modulation (APM). This can be achieved with one phase modulator placed after the wavelength multiplexer so that cost is shared by all channels. We show, by means of numerical simulations and laboratory experiments, that APM greatly improves the performance of ON-OFF-keying transmission.

  • 14.
    Forzati, Marco
    et al.
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Djupsjöbacka, Anders
    RISE., Swedish ICT, Acreo.
    Li, J.
    RISE., Swedish ICT, Acreo.
    Melin, S.
    40 Gbit/s field experiment over 820 km transmission link designed for 10 Gbit/s using APRZ modulation format2006Inngår i: Electronics Letters, ISSN 0013-5194, E-ISSN 1350-911X, Vol. 42, s. 991-92Artikkel i tidsskrift (Fagfellevurdert)
  • 15.
    Forzati, Marco
    et al.
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Djupsjöbacka, Anders
    RISE., Swedish ICT, Acreo.
    Li, J.
    RISE., Swedish ICT, Acreo.
    Melin, S.
    TeliaSonera AB, Sweden.
    Carlden, H.
    TeliaSonera AB, Sweden.
    40-gb/s field transmission through 540 km ssmf using the aprz modulation format2005Inngår i: Optics InfoBase Conference Papers, Optical Society of America , 2005Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We report the first field transmission experiment using the APRZ modulation format for 40-Gb/s transmission through 540 km SSMF, which confirms the improved nonlinear tolerance of APRZ. The optimum phase-modulation amplitude in this experiment is p/2. 

  • 16.
    Forzati, Marco
    et al.
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Pincemin, Erwan
    France Télécom, France.
    Gavignet, Paulette
    France Télécom, France.
    Transmission of 16x40 Gb/s NRZ-OOK Channels Over 2800 km SSMF Using Asynchronous Phase Modulation2009Inngår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 21, s. 131-33Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We use the cost-effective APM technique to increase the non-linear tolerance of NRZOOK, and we demonstrate, in a recirculating loop experiment, the transmission over 2800 km SSMF of 16 NRZ-OOK 40 Gb/s channels with 100 GHz spacing.

  • 17.
    Forzati, Marco
    et al.
    RISE., Swedish ICT, Acreo.
    Iyer, S.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Experimental study of single-MZM APRZ transmitters for fibre-optic communications2008Inngår i: Electronics Letters, ISSN 0013-5194, E-ISSN 1350-911X, Vol. 44, s. 148-49Artikkel i tidsskrift (Fagfellevurdert)
  • 18.
    Forzati, Marco
    et al.
    Ericsson Telecom AB, Sweden.
    Mårtensson, Jonas
    Ericsson Telecom AB, Sweden.
    Anders, Berntson
    Ericsson Telecom AB, Sweden.
    Djupsjöbacka, Anders
    Ericsson Telecom AB, Sweden.
    Johannisson, Pontus
    RISE., Swedish ICT, Acreo. Chalmers University of Technology, Sweden.
    Reduction of intra-channel four-wave mixing using the alternate-phase RZ modulation format2002Inngår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 14, nr 9Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    —The authors propose a modulation format in which the phase of the signal pulses alternates, in order to reduce the intrachannel four-wave mixing. They demonstrate numerically that the performance of a 40-Gb/s transmission link can be substantially improved.

  • 19. Haunstein, Herbert
    et al.
    Rohde, Harald
    Forzati, Marco
    Pincemin, Erwan
    Mårtensson, Jonas
    Djupsjöbacka, Anders
    RISE., Swedish ICT, Acreo.
    Politi, Tanya
    Combating Physical Layer Degradations: Chapter 62010Inngår i: Core and Metro Networks / [ed] Alexandros Stavdas, 2010, s. 381-Kapittel i bok, del av antologi (Annet vitenskapelig)
  • 20.
    Johannisson, Pontus
    et al.
    Chalmers University of Technology, Sweden.
    Anderson, D.
    Chalmers University of Technology, Sweden.
    Anders, Berntson
    Ericsson Telecom AB, Sweden.
    Mårtensson, Jonas
    Ericsson Telecom AB, Sweden.
    Generation dynamics of ghost pulses in strongly dispersion-managed fiber-optic communication systems2001Inngår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 26, s. 1227-29Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We investigate the nonlinear generation and dynamics of ghost pulses in high-speed strongly dispersion-managed fiber-optic communication systems. Particular consideration is given to the importance of system parameters for the properties of the emerging ghost pulses. Conclusions are drawn about the growth rate and the temporal position of the ghost pulses in different systems.

  • 21.
    Johannisson, Pontus
    et al.
    Chalmers University of Technology, Sweden.
    Anderson, D
    Chalmers University of Technology, Sweden.
    Marklund, Magnus
    Chalmers University of Technology, Sweden.
    Anders, Berntson
    Ericsson Telecom AB, Sweden.
    Forzati, Marco
    Ericsson Telecom AB, Sweden.
    Mårtensson, Jonas
    Ericsson Telecom AB, Sweden.
    Suppression of nonlinear effects by phase alternation in strongly dispersion-managed optical transmission2002Inngår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 27, nr 12Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The nonlinear effects of amplitude jitter and ghost pulse generation, which are present in strongly dispersion-managed optical communication systems can be suppressed by alternation of the phase of the bits. A physical explanation for this effect is given that shows that with suitably chosen phase modulations the processes that give rise to the nonlinear effects will counteract each other.

  • 22.
    Kundrat, J.
    et al.
    Cesnet, Czech Republic; Telecom Infra Project, USA .
    Le Rouzic, E.
    Orange Labs, France.
    Mårtensson, Jonas
    RISE Research Institutes of Sweden, Digitala system, Industriella system.
    Campanella, A.
    Open Networking Foundation, USA.
    Havlis, O.
    Cesnet, Czech Republic; Feec but, Czech Republic.
    D'Amico, A.
    Politecnico di Torino, Italy.
    Grammel, G.
    Juniper Networks, Germany.
    Galimberti, G.
    Cisco Photonics, Italy.
    Curri, V.
    Politecnico di Torino, Italy.
    Vojtech, J.
    Cesnet, Czech Republi.
    GNPy YANG: Open APIs for End-to-End Service Provisioning in Optical Networks2021Inngår i: 2021 Optical Fiber Communications Conference and Exhibition, OFC 2021 - Proceedings, Institute of Electrical and Electronics Engineers Inc. , 2021Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We demonstrate end-to-end service provisioning in a fully disaggregated optical network using open software interfaces. The GNPy quality-of-transmission estimator is extended with a YANG-based API. The YANG modeling work builds on the IETF standard schemas, and describes multiple layers of the network at once. 

  • 23.
    Kundrat, J.
    et al.
    Cesnet, Czech Republic; Telecom Infra Project, USA.
    Rouzic, E. L.
    Orange Innovation, France.
    Mårtensson, Jonas
    RISE Research Institutes of Sweden, Digitala system.
    Melin, Stefan
    Telia, Sweden.
    D'Amico, A.
    Politecnico di Torino, Italy.
    Grammel, G.
    Juniper Networks, Germany.
    Galimberti, G.
    Cisco Photonics, Italy.
    Curri, V.
    Politecnico di Torino, Italy.
    GNPy: Lessons Learned and Future Plans [Invited]2022Inngår i: 2022 European Conference on Optical Communication, ECOC 2022, Institute of Electrical and Electronics Engineers Inc. , 2022Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We discuss the history, past challenges and future plans of GNPy, an open source project for simulating physical impairments in contemporary DWDM network. The paper describes the unique interaction among network operators, equipment vendors, and standard bodies, as well as challenges in implementing the digital twin of an optical network.

  • 24. Lee, Y.
    et al.
    Bernstein, G.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Takeda, T.
    Tsuritani, T.
    Gonzalez de Dios, O.
    Path Computation Element Communication Protocol (PCEP) Requirements for Wavelength Switched Optical Network (WSON) Routing and Wavelength Assignment2015Annet (Annet vitenskapelig)
  • 25.
    Li, Y.
    et al.
    Beijing University of Posts and Telecommunications, China.
    Mårtensson, Jonas
    RISE Research Institutes of Sweden, Digitala system, Industriella system.
    Skubic, B.
    Ericsson, Sweden.
    Zhao, Y.
    Beijing University of Posts and Telecommunications, China.
    Zhang, J.
    Beijing University of Posts and Telecommunications, China.
    Wosinska, L.
    Chalmers University of Technology, Sweden.
    Monti, P.
    Chalmers University of Technology, Sweden.
    Flexible RAN: Combining Dynamic Baseband Split Selection and Reconfigurable Optical Transport to Optimize RAN Performance2020Inngår i: IEEE Network, ISSN 0890-8044, E-ISSN 1558-156X, Vol. 34, nr 4, s. 180-187Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The introduction of functional splits in C-RANs brings a tradeoff between radio performance and transport capacity. Higher-layer splits relax transport capacity requirements, whereas radio performance is not guaranteed. Lower-layer splits are beneficial for the radio performance, but they may require a more expensive and high capacity transport network. Facing the challenge of how to deploy 5G RANs in the short-term future, network operators need to find the best functional split options able to accommodate radio performance requirements without incurring excessive transport network costs. This article presents an architecture referred to as F-RAN able to choose the most appropriate split option while considering time-varying radio performance and the availability of transport resources. F-RAN can accommodate these needs by means of an SDN-based orchestration layer and a programmable optical transport network. The performance of F-RAN is benchmarked against a conventional C-RAN architecture in terms of the number of wavelengths and transponders to be deployed. Simulation results confirm the overall benefits of F-RAN in terms of better utilization of transport resources.

  • 26.
    Li, Yajie
    et al.
    KTH Royal Institute of Technology, Sweden.
    Mårtensson, Jonas
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Fiorani, Matteo
    Ericsson AB, Sweden.
    Skubic, Björn
    Ericsson AB, Sweden.
    Ghebretensae, Zere
    Ericsson AB, Sweden.
    Zhao, Yongli
    Beijing University of Posts and Telecommunications, China .
    Zhang, Jie
    Beijing University of Posts and Telecommunications, China .
    Wosinska, Lena
    KTH Royal Institute of Technology, Sweden.
    Monti, Paolo
    KTH Royal Institute of Technology, Sweden.
    Flexible RAN: a Radio Access Network Concept with Flexible Functional Splits and a Programmable Optical Transport2017Konferansepaper (Fagfellevurdert)
    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.

  • 27.
    Li, Yajie
    et al.
    KTH Royal Institute of Technology, Sweden.
    Mårtensson, Jonas
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Fiorani, Matteo
    Ericsson, Sweden.
    Skubic, Björn
    Ericsson, Sweden.
    Ghebretensaé, Zere
    Ericsson, Sweden.
    Zhao, Yongli
    Beijing University of Posts and Telecommunication, China.
    Zhang, Jie
    Beijing University of Posts and Telecommunication, China.
    Wosinska, Lena
    KTH Royal Institute of Technology, Sweden.
    Monti, Paolo
    KTH Royal Institute of Technology, Sweden.
    Flexible RAN: A Radio Access Network Concept with Flexible Functional Splits and a Programmable Optical Transport2018Inngår i: European Conference on Optical Communication, ECOC, 2018Konferansepaper (Fagfellevurdert)
    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.

  • 28.
    Lopez, Victor
    et al.
    Telefónica I+D/GCTO, Spain.
    Gran, Jose
    Telefónica I+D/GCTO, Spain.
    Jimenez, Rodrigo
    Telefónica I+D/GCTO, Spain.
    Fernandez-Palacios, Juan
    Telefónica I+D/GCTO, Spain.
    Siracusa, Domenico
    CREATE-NET, Italy.
    Pederzolli, Frederico
    CREATE-NET, Italy.
    Gerstel, Ori
    Sedona Systems, Israel.
    Shikhmanter, Yona
    Sedona Systems, Israel.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Sköldström, Pontus
    RISE., Swedish ICT, Acreo.
    Szyrkowiec, Thomas
    ADVA, Germany.
    Chamania, Mohit
    ADVA, Germany.
    Autenrieth, Achim
    ADVA, Germany.
    Tomkos, Ioannis
    Athens Information Technology, Greece.
    Klonidis, Dimitrios
    Athens Information Technology, Greece.
    The role of SDN in application centric IP and optical networks2016Inngår i: Journal of green engineering, ISSN 1904-4720, E-ISSN 2245-4586, Vol. 6, nr 3, s. 317-336Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Transport IP/optical networks are evolving in capacity and dynamicity of configuration. This evolution gives little to no attention to the specific needs of applications, beyond increasing raw capacity. TheACINO concept is based on allowing applications to explicitly specify requirements for requested services in terms of high-level (technology- and configuration-agnostic) requirements such as maximum latency or reliability. These requirements are described using intents and certain primitives which facilitate translation to technology specific configuration within the ACINO infrastructure. To support this application centric approach, SDN has a key role in this evolution. There are representative use cases where SDN gives an added value when considering not only the network but also the application layer.

  • 29.
    Lopez, Victor
    et al.
    Telefónica I+D/GCTO, Spain.
    Gran, Jose Manuel
    Telefónica I+D/GCTO, Spain.
    Fernandez-Palacios, Juan Pedro
    Telefónica I+D/GCTO, Spain.
    Siracusa, Domenico
    CREATE-NET, Italy.
    Pederzolli, Federico
    CREATE-NET, Italy.
    Gerstel, Ori
    Sedona Systems, Israel.
    Shikhmanter, Yona
    Sedona Systems, Israel.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Sköldström, Pontus
    RISE., Swedish ICT, Acreo.
    Szyrkowiec, Thomas
    ADVA Optical Networking, Germany.
    Chamania, Mohit
    ADVA Optical Networking, Germany.
    Autenrieth, Achim
    ADVA Optical Networking, Germany.
    Tomkos, Ioannis
    AIT Athens Information Technology, Greece.
    Klonidis, Dimitrios
    AIT Athens Information Technology, Greece.
    The role of SDN in Application Centric IP and Optical Networks2016Inngår i: 2016 European Conference on Networks and Communications (EuCNC), IEEE, 2016, s. 138-142, artikkel-id 7561020Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Transport IP/optical networks are evolving in capacity and dynamicity configuration. This evolution gives little to no attention to the specific needs of applications, beyond raw capacity. The ACINO concept is based on facilitating applications to explicitly specify requirements for requested services in terms of high-level (technology agnostic) requirements such as maximum latency or reliability. These requirements are described using intents and certain primitives which facilitate translation to technology specific configuration within the ACINO infrastructure. To support this application centric approach, SDN must have a key role in this evolution. There are representative use cases where SDN gives an added value when considering not only the network but also the application layer.

  • 30.
    Moradi, Farnaz
    et al.
    Ericsson Research, Sweden.
    Pechenot, Bertrand
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Monitoring Transport and Cloud for Network Functions Virtualization2015Inngår i: 2015 Fourth European Workshop on Software Defined Networks, 2015, s. 115-116, artikkel-id 7313630Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In this demonstration, we present a monitoring framework for VNFs running inside containers in a cloud system consisting of multiple data centers. We illustrate a use case for the monitoring framework by demonstrating VNF scaling based on monitoring information from both cloud resources and the transport network.

  • 31.
    Mårtensson, Jonas
    et al.
    Ericsson Telecom, Sweden.
    Anders, Berntson
    Ericsson Telecom, Sweden.
    Dispersion-managed solitons for 160 Gb/s data transmission2001Inngår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 13, s. 666-68Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The use of dispersion-managed (DM) solitons for 160-Gb/s data transmission in fiber lines where the period of dispersion management is much shorter than the amplifier spacing is investigated through numerical simulations. It is shown that DM solitons outperform both standard solitons and “quasi-linear” return-to-zero (RZ) pulses. The dispersion tolerance is limited by pulse-to-pulse interactions and Gordon–Haus jitter and decreases with increasing transmission distance.

  • 32.
    Mårtensson, Jonas
    et al.
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Djupsjöbacka, Anders
    RISE., Swedish ICT, Acreo.
    Forzati, Marco
    RISE., Swedish ICT, Acreo.
    Li, Jie
    RISE., Swedish ICT, Acreo.
    Phase Modulation Schemes for Improving Intra-Channel Nonlinear Tolerance in 40 Gbit/s Transmission2003Inngår i: Conference on Optical Fiber Communication, Technical Digest Series, Institute of Electrical and Electronics Engineers Inc. , 2003, s. 662-663Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Several schemes for suppressing infra-channel non-linearities by introducing phase shifts between pulses are compared. Simulations and experiments show that sinusoidal phase modulation at 10 GHz provides a simple and effective means for improving the nonlinear tolerance in 40 Gbit/s transmission.

  • 33.
    Mårtensson, Jonas
    et al.
    RISE., Swedish ICT, Acreo. Ericsson Telecom, Sweden.
    Anders, Berntson
    Ericsson Telecom, Sweden.
    Westlund, Mathias
    Ericsson Telecom, Sweden.
    Danielsson, Andreas
    Chalmers University of Technology, Sweden.
    Johannisson, Pontus
    Chalmers University of Technology, Sweden.
    Anderson, Dan
    Chalmers University of Technology, Sweden.
    Lisak, Mietek
    Chalmers University of Technology, Sweden.
    Timing jitter owing to intrachannel pulse interactions in dispersion-managed transmission systems2001Inngår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 26, s. 55-57Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We study interaction-induced timing jitter in single-channel dispersion-managed return-to-zero ttransmission systems operating at high map strengths. An equation for the frequency and timing shifts of two interacting pulses is derived by a variational approach. The interaction can be of either an attractive or a repulsive character, and we show that the resultant timing jitter can be reduced by proper design of the dispersion map.

  • 34.
    Mårtensson, Jonas
    et al.
    RISE., Swedish ICT, Acreo.
    Djupsjöbacka, Anders
    RISE., Swedish ICT, Acreo.
    Li, J.
    RISE., Swedish ICT, Acreo.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Östlund, L.
    Proximion Fiber Systems AB, Sweden.
    Johanson, P.
    Proximion Fiber Systems AB, Sweden.
    Zin, L. D.
    Proximion Fiber Systems AB, Sweden.
    Field transmission using Fiber Bragg grating-based dispersion compensating modules with continuous response over the full C-band2006Inngår i: 2006 European Conference on Optical Communications Proceedings, ECOC 2006, 2006Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Fiber Bragg grating-based dispersion compensating modules with continuous response over the full C-band are demonstrated. Group delay characteristics are analysed and modules are used in 10-Gbit/s and 40-Gbit/s field experiments over 820 km installed fiber.

  • 35.
    Mårtensson, Jonas
    et al.
    Ericsson AB, Sweden.
    Li, J.
    Ericsson AB, Sweden.
    Anders, Berntson
    Ericsson AB, Sweden.
    Djupsjöbacka, Anders
    Ericsson AB, Sweden.
    Forzati, Marco
    Ericsson AB, Sweden.
    Suppression of intra-channel four-wave mixing by phase modulation at one quarter of bit rate2002Inngår i: Electronic Letters, Vol. 38, nr 23, s. 1463-65Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A proposed improvement of the nonlinear tolerance in 40 Gbit/s optical transmission by applying a 10 GHz phase modulation is presented. The improvement is obtained because intra-channel four-wave mixing (IFWM) is suppressed. It is shown, both by numerical simulations and experiments, that the penalty induced by IFWM is significantly reduced.

  • 36.
    Mårtensson, Jonas
    et al.
    Ericsson AB, Sweden.
    Li, Jie
    Ericsson AB, Sweden.
    Anders, Berntson
    Ericsson AB, Sweden.
    Djupsjöbacka, Anders
    Ericsson AB, Sweden.
    Forzati, Marco
    Ericsson AB, Sweden.
    Improvement of Nonlinear Tolerance in 40 Gbit/s Transmission by Phase Modulation at 10 GHz2002Inngår i: 2002 28TH European Conference on Optical Communication, 2002, Vol. 4Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We propose to suppress intra-channel four-wave-mixing (IFWM) in 40 Gbit/s optical transmission by applying a phase modulation at 10 GHz. Both numerical simulations and experiments show that the penalty induced by IFWM is significantly reduced

  • 37. Mårtensson, Jonas
    et al.
    Olsson, B. E.
    Djupsjöbacka, Anders
    RISE., Swedish ICT, Acreo.
    Alping, A.
    RF-assisted DP-16-QAM 112 Gbit/s Transmission over 824 km of G.652 Fiber with without Inline Dispersion Compensation2012Inngår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 24, nr 2, s. 140-2Artikkel i tidsskrift (Fagfellevurdert)
  • 38.
    Mårtensson, Jonas
    et al.
    RISE., Swedish ICT, Acreo.
    Westlund, M.
    Anders, Berntson
    RISE., Swedish ICT, Acreo.
    Intra-channel pulse interactions in 40 Gbit/s dispersion-managed RZ transmission systems2000Inngår i: Electronics Letters, ISSN 0013-5194, E-ISSN 1350-911X, Vol. 36, s. 244-Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A 40 Gbit/s transmission experiment on an installed link designed for dense wavelength division multiplexing (DWDM) transmission at 10 Gbit/s, using the alternate-phase return-to-zero (APRZ) modulation format is presented. The experiment confirms the superior nonlinear tolerance of APRZ, even with typical DWDM filtering.

  • 39. Olsson, B-E
    et al.
    Djupsjöbacka, Anders
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Alping, A.
    112-Gbit/s RF-assisted dual carrier DP-16-QAM transmitter using optical phase modulator2011Inngår i: Optics Express, E-ISSN 1094-4087, Vol. 19, nr 26, s. 784-789Artikkel i tidsskrift (Fagfellevurdert)
  • 40. Olsson, B-E
    et al.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Alping, A.
    Djupsjöbacka, Anders
    RISE., Swedish ICT, Acreo.
    Rhodin, A.
    112 Gbit/s RF-Assisted Multicarrier DP-16-QAM Optical Transmission over Field Deployed Fiber Link2011Inngår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 23, nr 19, s. 1367-9Artikkel i tidsskrift (Fagfellevurdert)
  • 41.
    Olsson, Bengt Erik
    et al.
    Ericsson, Sweden.
    Larsson, Christina
    Ericsson, Sweden.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Alping, Arne G.
    Ericsson, Sweden.
    Analog electrical phase noise compensation for coherent optical receivers2012Inngår i: European Conference and Exhibition on Optical Communication, ECEOC 2012, 2012, artikkel-id 6705900Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The applicability of optical phase noise compensation in the analog electrical domain is presented and experimentally investigated. Frequency noise power density can be reduced two orders of magnitude, enabling the use of low-cost DFB lasers for advanced modulation formats like 16-QAM.

  • 42.
    Olsson, Bengt Erik
    et al.
    Ericsson, Sweden.
    Larsson, Christina
    Ericsson, Sweden.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Alping, Arne G.
    Ericsson, Sweden.
    Experimental demonstration of electro-optical mid-span spectrum inversion for mitigation of non-linear fiber effects2012Inngår i: European Conference and Exhibition on Optical Communication, ECEOC 2012, 2012Konferansepaper (Fagfellevurdert)
    Abstract [en]

    An opto-electric implementation of an optical spectrum inverter is proposed and experimentally demonstrated in a 561 km transmission link. 3dB increase in span launch power was enabled by the inverter for a 112 Gbit/s DP-16QAM channel and error free operation (BER<10-12) of 10G OOK transmission was obtained with no optical dispersion compensation.

  • 43.
    Olsson, Bengt Erik
    et al.
    Ericsson, Sweden.
    Larsson, Christina
    Ericsson, Sweden.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Alping, Arne G.
    Ericsson, Sweden.
    Alexandersson, Robert
    Ericsson, Sweden.
    Di Muro, Rodolfo
    Ericsson, Italy.
    WDM Transmission of 112 Gbit/s RF-Assisted DP-16QAM Over 1200 km ULL Fiber2013Inngår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 25, nr 1, s. 29-32Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Transmission of 86 dense wavelength division multiplexed channels on a 50-GHz grid, carrying 112-Gb/s radio-frequency-assisted dual-channel dual-polarization 16-QAM (8.6-Tb/s), was successfully demonstrated in a straight-line transmission link. Required bit-error rate before forward error correction was obtained after 1200 km of ultralow-loss G.652 fiber (0.17-dB/km attenuation) and after 881 km of conventional G.652 fiber (0.21-dB/km attenuation).

  • 44.
    Ozolins, Oskars
    et al.
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Udalcovs, Aleksejs
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Pang, Xiaodan
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo. KTH Royal Institute of Technology, Sweden.
    Lin, Rui
    KTH Royal Institute of Technology, Sweden; Huazhong University of Science and Technology, China.
    Djupsjöbacka, Anders
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Mårtensson, Jonas
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Fröjdh, Krister
    Proximion AB, Sweden.
    Gan, Lin
    Huazhong University of Science and Technology, China.
    Tang, Ming
    Huazhong University of Science and Technology, China.
    Fu, Songnian
    Huazhong University of Science and Technology, China.
    Schatz, Richard
    KTH Royal Institute of Technology, Sweden.
    Westergren, Urban
    KTH Royal Institute of Technology, Sweden.
    Liu, Deming
    Huazhong University of Science and Technology, China.
    Tong, Weijun
    YOFC Yangtze Optical fiber and Cable, China.
    Chen, Jiajia
    KTH Royal Institute of Technology, Sweden.
    Popov, Sergei
    KTH Royal Institute of Technology, Sweden.
    Jacobsen, Gunnar
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    112 Gbps/λ PAM4 inter-DCI with continuous-fiber Bragg grating based dispersion compensators2018Inngår i: Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF) OSA Technical Digest (online) (Optical Society of America, 2018), paper NeTh3F.3, 2018, artikkel-id NeTh3F.3Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We demonstrate 56 Gbaud/λ PAM4 inter - data center interconnects over 81 km single core single mode fiber and 33.6 km 7-core single mode fiber with continuous-fiber Bragg grating based chromatic dispersion compensators covering C-band.

  • 45. Rafique, D.
    et al.
    Mussolin, M.
    Forzati, M.
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Chugtai, M. N.
    Ellis, A. D.
    Compensation of intra-channel nonlinear fibre impairments using simplified digital back-propagation algorithm2011Inngår i: Optics Express, E-ISSN 1094-4087, Vol. 19, nr 10, s. 9453-60Artikkel i tidsskrift (Fagfellevurdert)
  • 46. Rafique, D.
    et al.
    Mussolin, M.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Forzati, M.
    RISE., Swedish ICT, Acreo.
    Fischer, J. K.
    Molle, L.
    Nölle, M.
    Schubert, C.
    Ellis, A. D.
    Polarization multiplexed 16QAM transmission employing modified digital back-propagation2011Inngår i: Optics Express, E-ISSN 1094-4087, Vol. 19, nr 26, s. b805-10Artikkel i tidsskrift (Fagfellevurdert)
  • 47.
    Raza, Muhammad Rehan
    et al.
    KTH Royal Institute of Technology, Sweden.
    Fiorani, Matteo
    KTH Royal Institute of Technology, Sweden.
    Skubic, Björn
    Ericsson, Sweden.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Wosinska, Lena
    KTH Royal Institute of Technology, Sweden.
    Monti, Paolo
    KTH Royal Institute of Technology, Sweden.
    Power and cost modeling for 5G transport networks2015Inngår i: 2015 17th International Conference on Transparent Optical Networks (ICTON), 2015, artikkel-id 7193533Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Optical 5G transport networks are the subject of academic and industrial research aimed at identifying the best architectural and deployment options. In this regard, the optimization of both power consumption and equipment cost is a crucial aspect. This paper analyses a number of architectural options (i.e., all optical vs. intermediate electronic processing, with and without network caching) for optical 5G transport networks, with the objective of understanding which alternatives are the most promising in terms of total power consumption and equipment cost. The analysis presented in the paper shows that 10 Gbps transmission equipment combined with optical switching guarantees the best overall performance. On the other hand, 100 Gbps transmission equipment combined with electronic processing and network caching is also a promising approach, especially in fiber scarce scenarios.

  • 48.
    Skubic, Björn
    et al.
    Ericsson Research, Sweden.
    Fiorani, Matteo
    Ericsson Research, Sweden.
    Tombaz, Sibel
    Ericsson Research, Sweden.
    Furuskar, Anders
    Ericsson Research, Sweden.
    Martensson, Jonas
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Monti, Paolo
    KTH Royal Institute of Technology, Sweden.
    Optical transport solutions for 5G fixed wireless access [Invited]2017Inngår i: Journal of Optical Communications and Networking, ISSN 1943-0620, E-ISSN 1943-0639, Vol. 9, nr 9, s. D10-D18, artikkel-id 8047675Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    With the advent of 5G, fixed wireless access (FWA) has emerged as a promising candidate for rolling out fixed broadband services. By means of radio simulations, we define a 5G radio deployment scenario for FWA that can meet the service requirements of future fixed broadband access. Different transport requirements imposed by different radio access network (RAN) split options are considered and a broad range of optical transport technologies/systems to support the FWA scenario is analyzed. For higher-layer RAN split options, we find that conventional 10G passive optical networks (XG-PONs) and coarse wavelength-division multiplexing (CWDM) technologies are the most cost effective. CWDM provides improved support for low-latency services while XG-PON facilitates future migration to fiber to the home. For lower-layer RAN splits, point-to-point (PtP) fiber or PtP-WDM is required. In the considered scenario, CWDM and PtP technologies are found to be the most cost effective.

  • 49.
    Spinnler, Bernhard
    et al.
    Infinera, Germany.
    Lindgren, Anders
    Telia Company, Sweden.
    Andersen, Uffe
    Telia Company, Sweden.
    Melin, Stefan
    Telia Company, Sweden.
    Slovak, Juraj
    Infinera, Germany.
    Schairer, Wolfgang
    Infinera, Germany.
    Pulverer, Klaus
    Infinera, Germany.
    Martensson, Jonas
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    De Man, Erik
    Infinera, Germany.
    Khanna, Ginni
    Technische Universiät München, Germany.
    Derksen, Rainer
    Infinera, Germany.
    Steinmayer, Joachim
    Infinera, Germany.
    Jozapovics, Renars
    Infinera, Germany.
    Blume, Johan
    Infinera, Germany.
    Lemstrom, Timo
    Infinera, Germany.
    Christensen, Jan
    Telia Company, Sweden.
    Habel, Ulrich
    Infinera, Germany.
    Bauer, Ulrich
    Infinera, Germany.
    Napoli, Antonio
    Infinera, Germany.
    Sommerkorn-Krombholz, Bernd
    Infinera, Germany.
    Autonomous intelligent transponder enabling adaptive network optimization in a live network field trial2019Inngår i: Journal of Optical Communications and Networking, ISSN 1943-0620, E-ISSN 1943-0639, Vol. 11, nr 9, s. C1-C9, artikkel-id 8781793Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We introduce a new transponder type for optical networks called an autonomous intelligent transponder (AIT). It is capable of autonomously adapting transmission parameters to the quality of the link over which it is transmitting. This concept fills one of the main gaps toward the realization of flexible, aware optical networks. We present experimental results to validate the AIT concept as part of a field trial in Telia Carrier's live optical European backbone network. 

  • 50. Tipsuwannakul, E.
    et al.
    Chughtai, M. N.
    Forzati, M.
    RISE., Swedish ICT, Acreo.
    Mårtensson, Jonas
    RISE., Swedish ICT, Acreo.
    Andrekson, P.
    Karlsson, M.
    Influence of self-cross-phase modulation on 40 Gbaud dual polarization DQPSK/D8PSK signals in 10 Gbit/s OOK WDM systems2010Inngår i: Optics Express, E-ISSN 1094-4087, Vol. 18, nr 23, s. 24178-88Artikkel i tidsskrift (Fagfellevurdert)
12 1 - 50 of 56
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