Marco Rufﬁni - WordPress.com · Marco Rufﬁni CONNECT research ... • 2015-2018: SFI/NSF/EPSRC ... (from micro to macro DCs) and from DC to 5G devices, such as mobile base stations

Marco RuffiniCONNECT research centre.

The University of Dublin, Trinity College,Ireland. Work phone: +353 1 896 4336

Mobile: +353 85 [email protected]

https://marcoruffini.com

OVERVIEW

I am assistant professor in Optical Network architectures at the department of Computer Science andStatistics of the University of Dublin, Trinity College. I am associated with CONNECT, the centre for futurenetworks and communication, where I lead the Optical Network Architectures laboratory (ONALab). Mymain research area is on converged access-metro and xed-mobile network architecture, passive opticalnetworks, and Software Dened Networks control planes. While my work also addresses theoretical aspectsof protocols and architectures, my optical networking group is experimentation oriented.

APPOINTMENTS

Tenured Assistant Professor 2010-

University of Dublin, Trinity College

Leading the Optical Network Architectures laboratory (ONALab): converged access-metro and xed-mobilenetwork architecture, passive optical networks, and Software Dened Networks control planes.

Leading the converged network research area in CONNECT, an SFI Principal Investigator Award (O?SHARE)on access network sharing, an SFI/NSF award for optican intra and inter-DC communicatios and a H2020project on federation of xed/mobile converged testbeds.

Coordinator, between 2012 and 2016, of the European FP7 DISCUS projects on next generation Log-ReachPON architectures

Research fellow 2009-2010CTVR Research centre, University of Dublin, Trinity College

Research on passive optical networks architecture, dual-home protection mechanisms

Postdoctoral Fellow 2007-2009CTVR Research centre, University of Dublin, Trinity College

Research on optical ow switching network architectures.

Research scientist 2003-2005Philips research laboratories, Aachen, Germany

Research on inter-vehicle wireless communications technologies to enhance preventive safety on roads.

January 24, 2016

Research

Ian Appelbaum

1 Scientific focus

Electrons have electric charge but also carry both intrinsic angular momentum (called spin) andan associated magnetic moment. Unlike the scalar charge, spin is a vector-like quantity that pointsin a given direction, and hence the nature of its interaction with other electronic degrees of freedomis fundamentally different.

My interests within solid-state device physics mostly pertain to the flow of this spin through oth-erwise nonmagnetic semiconductors, where under normal circumstances there are equal numbersof spins aligned or anti-aligned along any given axis. Forcing electrons to move across carefully-controlled interfaces between appropriate materials can, however, create an imbalance of spin di-rections or polarization out of equilibrium. One motivation for this topic choice is that thereare potentially several practical applications of spin-electronics where spin orientation is controlledthrough real or effective magnetic field coupling to the magnetic moment. My hope is that we areworking toward a time when this science enables an essential technology, much as a thorough un-derstanding of charge transport in semiconductors built throughout the middle of the 20th centuryled directly to the development of electronic devices and the information age we now enjoy. Thus,I have focused my research not on exotic substances but rather the same materials basis for con-ventional electronics (elemental semiconductors such as silicon and germanium, and more recently,2-dimensional layers of phosphorus).

As an assistant professor of Electrical Engineering at another university, I developed techniquesthat ultimately enabled my group to make the first experimental demonstration of non-equilibriumspin-polarized electron transport through silicon (2007). This was a hard technical and engineeringproblem to solve for many reasons; even now no other groups have replicated our success because ofthe enormous investment in time & capital, and the multi-disciplinary expertise required for success.A panoramic photo of several multi-chambered ultra-high vacuum thin-film deposition chambersthat were entirely custom-designed and built by me for this purpose are shown below inside mycustom semiconductor device fabrication cleanroom in Fig. 1, and my new low-temperature devicemeasurement lab is shown in Fig. 2.

Figure 1: Custom-built ultra-high vacuum thin-film deposition chambers in Appelbaums semicon-ductor device fabrication cleanroom in the Physical Sciences Complex, and an examplepackaged and mounted spintronic semiconductor device array fabricated using them.

1

Figure 2: Appelbaums semiconductor device measurement lab in the Physical Sciences Complex.

Carving out this niche in the field has led to many unique opportunities for exploring a previouslyobscured but rich scientific landscape. Since my transition to the Physics department at UMD in2009, I have exploited our prior technical accomplishments in device design and fabrication to focuson the more fundamental aspects such as the microscopic mechanisms dominating transport of spin-polarized electrons in elemental semiconductors, especially relaxation or spin flip. Over the courseof these last 6 years or so, we have had many successes in identifying these processes, especiallywhere the crystal symmetry, electronic states properties, and isoenergetic surface topology (andhence the nature of momentum scattering) play a major role.

2 Some context: Research style

My research described above is within the discipline of solid-state condensed-matter physics. Al-though this is a rather broad field, a small number of topics tend to dominate attention at any onetime, with trends shifting every few years. It is often sensible to align ones research to these trends,since it maintains a sense of scholarly community and is to some degree essential in a sociologicalcontext to establish scientific consensus.

My own approach to research has nevertheless always been to pursue topics where I can make aunique contribution to the field, regardless of trends. I am generally not interested in the obviousnext steps that others will do in droves applying the same set of tools to the same problems aseveryone else once a hot new subject attracts attention.

As an experimentalist, my lab builds arrays of complicated semiconductor devices from barecommodity wafers using unconventional techniques enabled by fabrication equipment I designedand custom-built. This work is very demanding and it takes new lab members many months tomake progress even just to reproduce known results obtained by previous students and postdocs.We subsequently perform all the low-temperature measurements on these fragile devices.

Although we have collaborated with theorists on a few occasions, I have a more holistic approachthan most experimentalists. I especially enjoy demonstrating the relevance of theory in numericalcomputer simulations to uncover the physical mechanisms responsible for the phenomena observedin our data. By doing essentially everything necessary ourselves, we strive to gain a completeunderstanding of our subject. Consequently, our papers have relatively few authors (I usually placemy name last in the authorship list), and I agonize over the choice of every sentence.

This research style applied to technically difficult topics both limits the production rate for journalpapers and makes our expertise difficult to acquire by other groups, resulting in an only modestcitation count (and so-called h-index). It also suppresses the kind of collateral authorship found inthe records of some researchers with many external collaborators where the intellectual contributionrequirements for inclusion are minimal. However, my goal is to maintain a creative, unique approachand exploit strengths distinct to my group and personal sense of scientific aesthetic. I maintain theconviction that numerically quantifiable citation impact cannot be the sole motivating factor fortruly long-lasting science.

3 Research Highlights

Below, I describe one significant paper from each year since joining UMD as associate professor in2009:

2009. Hyuk-Jae Jang and Ian Appelbaum, Spin Polarized Electron Transport near the Si/SiO2Interface, Phys. Rev. Lett. 103, 117202 (2009). [45 citations]:

As spin-polarized electrons are attracted to the oxide inter-face by an electrostatic gate, we observed a paradox: spin transittimes between injector and detector decreases and spin coher-ence as measured by Larmor precession fringes increases, de-spite a reduction in total spin polarization. We explained thisbehavior (which is in contrast with the expected exponential de-polarization seen in bulk transport devices) using a transformmethod to recover the empirical spin current transit-time distri-bution and a simple two-stage drift-diffusion model. We identi-fied strong interface-induced spin depolarization (reducing thespin lifetime by over 2 orders of magnitude from its bulk trans-port value) as the consistent cause of these phenomena, andresolved the paradox. This was followed up with extensive finite-differences modeling in Jing Li and Ian Appelbaum, Modelingspin transport in electrostatically-gated lateral-channel silicondevices: Role of interfacial spin relaxation, Phys. Rev. B 84,165318 (2011)[33 citations] and further experiments in Jing Liand Ian Appelbaum, Lateral spin transport through bulk sili-con, Appl. Phys. Lett. 100, 162408 (2012) [19 citations]. Through an international collaboration,we have begun to apply resonant microwave techniques to identify the microscopic mechanism forthis relaxation pathway, already showing that resonant microwave irradiation can be used to in-duce spin rotation of spin-polarized electrons as they travel across a silicon channel. [C. Lo, J. Li,I. Appelbaum, and J.J.L. Morton, Microwave manipulation of electrically injected spin polarizedelectrons in silicon, Phys. Rev. Applied 1, 014006 (2014).]

2010. Biqin Huang and Ian Appelbaum, The Larmor clock and anomalous spin dephasing in sili-

con, Phys. Rev. B Rapid Comm. 82, 241202(R) (2010). (Editors Suggestion) [25 citations]:Here we showed that measurement of coherent spin precession

in a controllable magnetic field can be transformed into an empiri-cal spin transit time distribution with sub-nanosecond resolution,without the need for time-of-flight methods. A spin analogue ofthe classic Haynes-Shockley experiment (for minority charge car-riers) is then possible. Analysis of these transport-time distribu-tions from long-distance silicon channels revealed a spin diffusioncoefficient inconsistent with the Einstein relation that relates dif-fusivity to mobility, as expected for non-conserved quantities likespin.

http://dx.doi.org/10.1103/PhysRevLett.103.117202


http://dx.doi.org/10.1103/PhysRevB.84.165318



http://dx.doi.org/10.1063/1.4704802

http://dx.doi.org/10.1063/1.4704802

http://dx.doi.org/10.1103/PhysRevApplied.1.014006

http://dx.doi.org/10.1103/PhysRevApplied.1.014006



2011. Yuan Lu, Jing Li, and Ian Appelbaum, Spin-Polarized Transient Electron Trapping inPhosphorus-doped Silicon, Phys. Rev. Lett. 106, 217202 (2011). [17 citations]:

Using the Larmor clock analysis described above to examine trans-port data from silicon with intentional donor impurities, we observedevidence for two distinct transport pathways: (i) short time scales(50 ps) due to purely conduction-band transport from injector todetector and (ii) long time scales (1 ns) originating from delays as-sociated with capture or reemission in shallow impurity traps. Theorigin of this phenomenon, examined via temperature, voltage, andelectron density dependence measurements, was established by meansof a comparison to a numerical model inspired by probabilistic queu-ing theory, and is shown to reveal the participation of metastableexcited states in the phosphorus-impurity spectrum. This work theninspired ongoing research (funded by ONR) into radiative emissionfrom impurity level transitions and the manipulation of spin selectionrules for controllable THz sources.

2012. Jing Li, Lan Qing, Hanan Dery, and Ian Appelbaum, Field-induced negative differential spinlifetime in silicon, Phys. Rev. Lett. 108, 157201 (2012). [28 citations]:

In this work detailing the analysis of spin-transport measure-ments in high electric fields, we showed that the electric-field-induced thermal asymmetry between the electron and lattice sys-tems in pure silicon substantially impacts the identity of the dom-inant spin relaxation mechanism. Comparison of empirical resultsfrom long-distance spin transport devices with detailed MonteCarlo simulations confirms a strong spin depolarization beyondwhat is expected from the standard Elliott-Yafet theory even atlow temperatures. The enhanced spin-flip mechanism is attributed

to phonon emission processes during which electrons are scattered between conduction band valleysthat reside on different crystal axes. This leads to anomalous behavior, where (beyond a criticalfield) reduction of the transit time between spin-injector and spin-detector is accompanied by acounterintuitive reduction in spin polarization and an apparently negative spin lifetime.

2013. Pengke Li, Jing Li, Lan Qing, Hanan Dery, and Ian Appelbaum, Anisotropy-driven spin

relaxation in germanium, Phys. Rev. Lett. 111, 257204 (2013). (Editors Suggestion)[18 ci-tations]:

We demonstrated an extraordinary mechanism in cen-trosymmetric diamond-lattice germanium which is remi-niscent of the Dyakonov-Perel spin relaxation process thatdominates in noncentrosymmetric semiconductor crystallattices. In that well-known case, broken spatial inver-sion symmetry allows spin-orbit interaction to cause amomentum-dependent spin splitting; intravalley scatteringduring spin precession about this random effective mag-netic field leads to depolarization. By straightforwardlyshowing the suppression of spin polarization with a longitu-dinal magnetic field in germanium spin-transport devices,





http://link.aps.org/doi/10.1103/PhysRevLett.111.257204

http://link.aps.org/doi/10.1103/PhysRevLett.111.257204

we identify an analogous spin relaxation pathway caused by the presence of an additional randomfield whose origin is rooted instead in the broken time reversal symmetry, and intervalley scatteringallows g-factor anisotropy to drive its fluctuation between four different orientations.

This is the first experimental result in the field that fully demonstrates the sensitivity of spintransport to band structure topology and symmetry through the spin-orbit interaction.

2014. P. Li and I. Appelbaum, Electrons and holes in phosphorene, Phys. Rev. B 90, 115439

(2014) (Editors Suggestion)[29 citations]:Despite its low atomic number and inversion symmetry, recent

electronic measurements demonstrate that (group-IV) graphenehas a greatly disappointing and temperature-insensitive spin life-time, corroborated by theory showing strong coupling to flexural(out-of-plane) phonons that cannot be effectively suppressed dueto quadratic dispersion and therefore an energy-indpendent densityof states. There exists a class of graphene-like 2-dimensional semi-conductors formed from elemental group-IV OR group V atoms,some of which may be immune to this deleterious coupling. Onlyone is known to mechanically exfoliate like graphene: phosphorene(monolayer black phosphorus). Using group theory, we analyzed

the symmetry of its electronic bandstructure including spin-orbit interaction close to the insulatinggap edge with special interest in the spin-transport properties. Importantly, we discovered that theunique anisotropy of the valence band vastly suppresses spin relaxation due to flexural phononsfor polarization along a specific in-plane direction. This result allowed us to predict a spin lifetimecomparable to bulk Si, vastly greater than graphene. I am actively in search of funding to extendthis theory work to the realm of experiment so that we can test this prediction.

2015. L. Qing, J. Li, I. Appelbaum, and H. Dery, Spin relaxation via exchange with donor impurity-bound electrons, Phys. Rev. B Rapid Comm. 91, 241405(R) (2015):

At low temperatures, electrons in semiconductors are boundto shallow donor impurity ions, neutralizing their charge inequilibrium. Inelastic scattering of other externally-injectedconduction electrons accelerated by electric fields can excitetransitions within the manifold of these localized states. Pro-motion of the bound electron into highly spin-orbit-mixed ex-cited states drives a strong spin relaxation of the conductionelectrons via dynamic exchange interactions, reminiscent ofthe Bir-Aronov-Pikus process where exchange occurs with va-lence band hole states. Through low-temperature experiments with silicon spin transport devicesand complementary theory incorporating a master rate-equation approach using Fermis goldenrule, we revealed the consequences of this previously unknown spin depolarization mechanism bothbelow and above the impact ionization threshold and into the deep inelastic regime.


http://link.aps.org/doi/10.1103/PhysRevB.91.241405

http://link.aps.org/doi/10.1103/PhysRevB.91.241405

4 Broader Interests

Majorana modes in 1D spin-orbit coupled superconductors: Dur-ing Spring 2013, I spent 3 days a week at Harvard under the gra-cious hospitality of Prof. Amir Yacoby as a Visiting Scholar,primarily on numerical modeling of spin-orbit-coupled supercon-ductor materials and detection schemes for observing the pre-dicted Majorana fermion in these systems. This resulted in twopapers, one describing a novel technique (Ian Appelbaum, Tun-nel conductance spectroscopy via harmonic generation in a hybridcapacitor device, Appl. Phys. Lett. 103, 122604 (2013) [15 cita-tions]), and a funded proposal (NSF-DMR unsolicited) to carryout its experimental realization using materials from epitaxial-growth collaborators at Adelphi Army Research Labs. The othermakes use of electrostatic detection of Majorana modes: G. Ben-Shach, A. Haim, I. Appelbaum, Y. Oreg, A. Yacoby and B.I.Halperin, Detecting Majoranas in 1D wires by charge sensing,Phys. Rev. B 91, 045403 (2015) [7 citations].

Topological Insulators: I developed a numerical model predict-ing a unique signature of dielectric insulator surface states onthe polarized resonant electromagnetic transmission spectrum,I. Appelbaum, Cross-Polarized Microwave Surface-State Anti-Resonance, J. Appl. Phys. 116, 064903 (2014). This work ispotentially relevant to the search for novel topological insula-tors, a presently active topic in the field with which I have sev-eral prior contributions: Ian Appelbaum, H.D. Drew, and M.S.Fuhrer, Proposal for a topological spin rectifier, Appl. Phys.Lett. 98, 023103 (2011) [24 citations] and C. Ojeda-Aristizabal,M. S. Fuhrer, N. P. Butch, J. Paglione, and Ian Appelbaum,Towards spin injection from silicon into topological insulators:Schottky barrier between Si and Bi2Se3, Appl. Phys. Lett. 101,023102 (2012) [12 citations].

http://dx.doi.org/10.1063/1.4821748

http://dx.doi.org/10.1063/1.4821748

http://dx.doi.org/10.1063/1.4821748

http://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.045403

http://dx.doi.org/10.1063/1.4892867

http://dx.doi.org/10.1063/1.4892867

http://dx.doi.org/10.1063/1.3541545

http://dx.doi.org/10.1063/1.4733388

http://dx.doi.org/10.1063/1.4733388

5 Current and Future directions

Several important topics in semiconductor spintronics supported in part by existing funded projects:

Recently, we have obtained initial results on THz emission from doped Si devices (see 2011paper above), motivating our present work on utilizing spectroscopically-isolated impurity-level transition lines to produce controllably circularly-polarized radiation resulting from thespin selection rules. This is a major standing problem in the field, relevant to e.g. chiralmolecule analysis.

Breaking discrete rotational symmetry with uniaxial strain: Spin relaxation in indirect-bandgapcentrosymmetric semiconductors is dominated by electron-phonon-mediated intervalley scat-tering. Lattice distortion caused by mechanical stress breaks the valley degeneracy and sup-presses this scattering, which should lead to massively enhanced spin lifetimes. Our tunneljunction injectors can easily withstand the necessary strain and we have developed the nec-essary device fabrication and built a low-temperature strain vise probe with custom contactgeometry.

Electron spin resonance: In addition to collaboration with Mortons lab as described above(see 2009 Highlight), we are also building our own low-temperature ESR system to explore res-onance identification of paramagnetic centers, and provide additional evidence of e.g. strain-induced spin lifetime enhancement in Si and Ge.

Inelastic electron tunneling spectroscopy: We have used this technique to identify extrinsiccontributions to a magnetoresistance phenomenon that has captured the attention of the spin-tronics community since it mimics spin detection: H. Tinkey, P. Li, and I. Appelbaum, Inelas-tic electron tunneling spectroscopy of local spin accumulation devices, Appl. Phys. Lett.104, 232410 (2014) [15 citations]. I have also developed a rigorously self-consistent methodfor simulating true spin-accumulation magnetoresistance: I. Appelbaum, H. N. Tinkey, and P.Li, Self-consistent model of spin accumulation magnetoresistance in ferromagnet-insulator-semiconductor tunnel junctions, Phys. Rev. B 90, 220402(R) (2014) [3 citations].

Alternative spin detection schemes: Only two electrical spin detection methods have ever beendemonstrated for use with semiconductors. Both use a ferromagnetic metal contact, eitherin open-circuit voltage detection (as pioneered by Johnson and Silsbee, originally with Al in1985, and applied to GaAs by Crowells group in 2007) or in closed-circuit current detec-tion exploiting spin-dependent inelastic scattering (as developed and extensively used by mygroup). Each has its own disadvantages; the former is not applicable to nondegenerate semi-conductors, and the latter suffers from small signal levels. To enable a spin-polarized electronicinterconnect that circumvents technology constraints on metallic interconnects affecting pack-ing density (due to capacitive cross-talk) or modulation speed (due to RC time delay), wedeveloped a hybrid device design with benefits of both approaches, describing and modeling itin Bryan Hemingway and Ian Appelbaum, A Differential Spin Detection Scheme, J. Appl.Phys. 114, 093907 (2013). Ongoing fabrication and measurement to benchmark the proposedtechnique under current DTRA funding.

http://dx.doi.org/10.1063/1.4883638

http://dx.doi.org/10.1063/1.4883638



http://dx.doi.org/10.1063/1.4820467

Scientific focus

Some context: Research style

Research Highlights

Broader Interests

Current and Future directions

https://www.google.ie/maps/place/CONNECT+Centre,+Trinity+College+Dublin/@53.342052,-6.250362,15z/data=!4m2!3m1!1s0x0:0x9ad142d3ea06fd2?sa=X&ved=0ahUKEwiSn6_asMrSAhXiDcAKHQ6UAE4Q_BIIazAMmailto:[email protected]://marcoruffini.com

EDUCATION

PhD Computer Science 2005-2007CTVR Research centre, University of Dublin, Trinity College

Research on optical IP switching switching, signalling protocols and algorithms for optical switching, IP-opticaltestbed for dynamic bypass of IP routing layerThesis advisor: Prof. Donal OMahony

Laurea Degree in Electronic Engineering (equivalent to B.Sc. in E.Eng, and M.Sc in Telecommu-nications), 1997-2002Marche Polytechnic University, Italy,

Summa Cum Laude (110/10 and honours). Academic/Research advisors: Prof. Tullio Rozzi and Prof. Liam Barry,Dissertation: Nonlinear optical properties of semiconductors in all-optical switches

RESEARCH FUNDING

My total funding today is in excess of 4M, of which 2.76M as Principal Investigator, 475K as Co-PI and750K as funded researcher.

2015-2019: Science Foundation Ireland (SFI) Principal Investigator award OSHARE project. Totalfunding of 1,020,000

2015-2018: SFI/NSF/EPSRC collaborative project on Agile cloud service delivery using integratedphotonics networking. Funded researcher and PI for TCD for a total funding of 368,000.

2016-2019: H2020 collaborative project FUTEBOL. Co-PI on a TCD funding of 475,000.

2015: Enterprise Ireland commercialisation feasibility funding award as PI. Total funding of 19,000.

2012-2015: EU FP7 project DISCUS, technical coordinator and project manager. Project funding of8.1M, of which managing 1,351,000M as PI in TCD.

2015-2021: Funded researcher in the SFI-funded CONNECT SFI centre for 250,000

2010-2016: Funded researcher in the SFI-funded CTVR research centre 500,000.

INVITED TALKS

Keynote talk at the Workshop on Optical-Wireless Convergent Networks Joining Brazilian andEuropean Researchers and Network Operators, Ministry of Communications, Brasilia, DF, Brazil,1st June 2017. Title of the talk: ?Network convergence for high performance and sustainable 5Gnetworks?.

Invited as team leader for OFC , March 2017 Workshop OFCity Challenge.

Invited talk at CommNet2, Future Networks Workshop, Middlesex University London, 16th January2017 on Optical Networks in the 5G era.

Invited tutorial at OFC, March 2016 on Converged Metro-Access.

https://mruffini.files.wordpress.com/2015/03/ruffini_optical_networks_and_5g_final_distr.pdfhttps://mruffini.files.wordpress.com/2016/12/th4b-1_ruffini_ofc_v7.pdf

Invited as team leader for OFC , March 2016 Workshop OFCity Challenge.

Keynote speaker for the IEEE Consumer Communications and Networking Conference, Jan 2016, LasVegas. ??Access-metro convergence in next generation broadband networks

Invited talk at the OSA Photonic networks and devices congress. Boston, June 29th, 2015. Design forSustainable, Multi-service Optical Network Architectures.

Invited talk at the London Royal Society meeting on communications networks beyond the capac-ity crunch. May 11th-14th, 2015. Tackling the capacity crunch: an attempt to rationalisation andmitigation.

Invited talk at the 19th European conference on network and optical communications, NOC 2014:workshop on New Telecom Network Architectures for the Cloud Era, June 3rd 2014. DISCUS approachto end-to-end network modeling: an update on access and core architecture and technology.

Invited talk at the Post-OFC workshop, UCDavis, March 14th 2014. The DISCUS FP7 project: ideas,issues and solutions for designing next-generation cost-eective and future-proof optical broadbandnetwork.

Invited talk at the Future Internet Assembly, Dublin, May 10th 2013. A radical change to telecomsnetwork architecture to provide unlimited broadband to all users: the DISCUS project.

Invited talk at the Marche Polytechnic University, Ancona, Italy, April 12th 2013. Il progetto DISCUS:un cambio radicale nelle reti di telecomunicazioni per fornire banda larga senza limiti a tutti gliutenti.

Invited talk at the ISTAO Business School, Ancona, Italy, April 12th 2013. Il progetto DISCUS: uncambio radicale nelle reti di telecomunicazioni per fornire banda larga senza limiti a tutti gli utenti.

Invited talk at the HEAnet national conference, Kilkenny, Ireland, November 2011. Next-GenerationFibre to the Home Deployment ? A HEAnet Case Study. .

Invited talk at the HEAnet national conference, Kilkenny, Ireland, November 2010. FEDERICA virtuale-infrastructure for researchers.

Invited talk at the UCLP Workshop, Edinburgh, UK, August 2006. Optical IP Switching and UCLP.

EDITORIAL WORK AND COMMUNITY SERVICE

Editorial Board of Springer Photonic Networks Communications Journal, since 2015.

Managing Guest Editor for Elsevier Optical Fibre Technology Journal, special issue on Next Gener-ations Optical Access Networks, Fall 2015

General chair for IEEE Optical Network Design and Modeling 2018 (Dublin), IEEE online Greencom2016.

TPC chair for IEEE Optical Network Design and Modeling 2017, IEEE Conference on Standards forCommunications and Networking (CSCN) 2017 track on 5G Carrier and Converged Networks, IEEEonline Greencom 2015.

TPCmember for ICC Green Communications Systems and Networks Symposium 2017, IEEE WCNCworkshop on Green and Sustainable 5G Wireless Networks 2017, IEEE Consumer Communications andNetworking Conference 2017, IEEE International Conference on Communications (ICC) 2017, IEEEInternational Symposium on Communication Systems, Networks and Digital Sign (CSNDSP) 2016,IEEE Optical Network Design and Modeling Conference (ONDM) 2016, International Conferenceon Networking and Network Applications (NaNA) 2016, IEEE Consumer Communications andNetworking Conference 2016, IEEE Optical Network Design and Modeling Conference (ONDM) 2015,IEEE International Teletrac Congress (ITC) 2015, Demonstration Session Chair for IEEE onlineGreencom 2014, European Conference on Networks and Communications (EuCNC) 2014, FutureNetworks and Mobile Summit (FuNeMS) 2013.

Workshop organiser forECOC 2015 workshop titled Fibre access and core network evolution:what are the next steps towards an integrated end-to-end network?, ECOC 2014 workshop titled IsNG-PON2 an ultimate access solution? Is there anything coming afterwards?, ONDM 2014 workshoptitled Network protection and resiliency in Next Generation access and core networks, Dublin 2013workshop on Ownership, Usage And Regulation In Next Generation Fibre Access Network: Can WeMove Away From Competition At The Physical Layer?.

Active or past reviewer of the following international journals: IEEE Journal on Selected Areason Communication, IEEE Communications Magazine, IEEE/OSA Journal of Lightwave Technology,IEEE/OSA Journal of Optical Communications and Networking, OSA Optics Express, Elsevier OpticalFibre Technology, Springer Photonic Networks Communications.

Poposal reviewer for the US Global Environment for Network Innovations (GENI) initiative andEPSRC (UK) Associate College member.

External Ph.D examiner for Alvaro Fernandez, Trondheim technical University, February 2017;Christophe Van Praet, IMEC, University of Ghent, December 2013.

AWARDS AND DISTINCTIONS

Senior IEEE member

My research activity appeared in the TCD Provost Annual Review 2012-2013.

Irelands Champions of EU Research 2012, presented by Ireland?s President Michael D. Higgins.

Member of Italian Engineers Associations.

Awarded best paper award at IEEE ONDM 2016.

TEACHING ACTIVITIES

Courses

University: The University of Dublin, Trinity College (Ireland)Course name: Future Networks (CS4031) - fourth year, 45 studentsAcademic Years: 2016/2017

University: The University of Dublin, Trinity College (Ireland)Course name: Mobile Networks (CS4031) - fourth year, 40 studentsAcademic Years: 2011/2012, 2012/2013, 2013/2014, 2014/2015, 2015/2016

University: The University of Dublin, Trinity College (Ireland)Course name: Telecommunications I (CS1031) - rst year, 100 studentsAcademic Years: 2012/2013, 2013/2014, 2014/2015, 2015/2016, 2016/2017

University: The University of Dublin, Trinity College (Ireland)Course name: Data communications (CS7002) - fth year, 50 studentsAcademic Years: 2011/2012, 2012/2013

Online lectures: Some of my optical lectures have been uploaded in youtube and received over 2000views.

RESEARCH ACTIVITIES

My main research area is on converged access-metro and xed-mobile network architecture, passive opticalnetworks, and Software Dened Networks control planes. While my work also addresses theoretical aspectsof protocols and architectures, my optical networking group is experimentation oriented.

I am and have been involved in the following research projects:

OSHARE is an open-access SDN-driven architecture enabling multi-operator and multi-service convergence in shared optical access networks This is a 4-year project aiming at de-signing and demonstrating an SDN-based dynamic control and management platform for broadbandaccess networks to enable ecient sharing of physical resources among multiple Network Opera-tors and Service Providers. This is achieved through two main innovations: open-access orientedinterfaces, which will simplify network access by multiple network operators and service providers;and algorithms and techniques to virtualise Passive Optical Networks, leading to a more ecientexploitation of system resources. The theoretical work carried out in O?SHARE will be rst testedthrough simulations and then implemented into a hardware testbed, which will lead up to an interna-tional demonstrator showcasing industry-led networking scenarios. O?SHARE will create the basisfor an information-led society without digital divide.

Agile Cloud is a joint project between three large research centres in Ireland (CONNECT), US(CIAN), and Northern Ireland (University of Ulster). The project aims at developing architecturesand technology for next generation intra and inter data centre communications. We Trinity CollegeDublin cooperate in this project with The University of Arizona, Columbia University, Dublin CityUniversity and University of Ulster. We aim to develop next generation optical data centre networksand their interconnection to converged access/metro networks to enable a seamless integration withthe future 5G ecosystem. Features include fast optical switching (microsecond level) at metro nodes toenable transparent interconnection between data centres (from micro to macro DCs) and from DC to5G devices, such as mobile base stations and remote radio heads. The 5G vision includes virtualisationof network functions at dierent levels, see for example the AT&T and ON.lab CORD project oncentral oce virtualisation. Moving virtualised network function into the data centre will require anagile metro node capable of fast switching of wavelengths, which remain transparent from the accessend point all the way to the data centre, where the virtual function resides (see gure below as anexample).

https://www.youtube.com/watch?v=4sfhJhvHq0Mwww.oshare.ie

FUTEBOL is a project aiming at federating research infrastructure, developing a supporting con-trol framework, and conducting experimentation-based research in order to advance the state oftelecommunications through the investigation of the optical/wireless boundary of networks.

Converged networks is the research area I lead in the CONNECT research centre. The project aimsat fully integrating the Cloud Radio Access Network within the converged access/metro architecturethrough various technology, backhaul, fronthaul and midhaul (or split PHY processing). We arecurrently carrying out the rst integration tests of wireless links with our next generation multi-wavelength Long-Reach PON prototype developed in our lab.

DISCUS FP7 project. The DIStributed Core for unlimited bandwidth supply for all Users and Services(FP7 Grant Agreement 318137) was coordinated by TCD and aimed at demonstrating technologyand concepts needed to dene and develop a new radical architectural concept that can enable anintegrated wireless and FTTP future network which addresses the economic, energy consumption,capacity scaling, evolutionary, regulatory and service demand challenges arising from an FTTPenabled future.

My optical network architecture research group has developed the following tools:

a Passive Optical Network module for the Network Simulator 3 (NS3), one of the most popular opensource simulator for research in networking. (open source)

a simulator for peer-to-peer networks used for content distribution. (open source).

a tool for generating trac matrices. This was used to predict trac matrix and feed the architecturalstudies for the European DISCUS project. (open source)

an FPGA hardware platform for prototyping Optical Line Terminal and Optical Network Units forPassive Optical Networks. (proprietary)

a Software Dened Network system for access-metro networks. (proprietary)

Theses Supervised

1. Frank Slyne, Software Dened Telecommunication Networks, 2017.

2. Pedro Alvarez, Dynamic Bandwidth Allocation for Open Access and Long-Reach Passive OpticalNetworks, 2016.

3. Emanuele Di Pascale, Optimizing Multimedia Content Delivery over Next-Generation Optical Net-works, 2015.

My number of citations is currently 647 according to Google Scholar, with i10-index of 22 andh-index of 13.

http://www.ict-futebol.org.br/http://www.discus-fp7.eu

PEER-REVIEWED JOURNAL PAPERS

1. V. Lopez, J. M. Gran Josa, V. Uceda, F. Slyne, M. Runi, R. Vilalta, A. Mayoral, R. Munoz, R. Casellas,R. Martinez. End-to-end Service Orchestration From Access to Backbone [invited]. IEEE/OSA Journalof Communications and Networking, Vol. 9, No. 6, June 2017.

2. M. Runi, M. Achouche, A. Arbelaez, R. Bonk, A. Di Giglio, N. J. Doran, M. Furdek, R. Jensen, J.Montalvo, N. Parsons, T. Pfeier, L. Quesada, C. Raack, H. Rohde, M. Schiano, G. Talli, P. Townsend,R. Wessaly, L. Wosinska, X. Yin and D.B. Payne. Access and metro network convergence for exibleend to end network design [invited]. IEEE/OSA Journal of Communications and Networking, Vol. 9,No. 6, June 2017.

3. M. Runi, Multi-Dimensional Convergence in Future 5G Networks. IEEE/OSA Journal of Lightwavetechnology, March 2017.

4. G. Talli, F. Slyne, S. Porto, D. Carey, N. Brandonisio, A. Naughton, P. Ossieur, S. McGettrick, C.Blumm, M. Runi, D. Payne, R. Bonk, T. Pfeier, N. Parsons, P. Townsend. SDN Enabled DynamicallyRecongurable High Capacity Optical Access Architecture for Converged Services. IEEE/OSA Journalof Lightwave technology, March 2017.

5. F. Slyne and M. Runi, FLATLANd: A Novel SDN-based Flat Layer-2 Architecture Enabling NFV andMetro-Access Convergence. IEEE/OSA Journal of Communications and Networking, Vol. 9, No 3,March 2017.

6. Rod Tucker, Marco Runi, Luca Valcarenghi, Divanilson R. Campelo, Dimitra Simeonidou, Liang Du,Maria-Cristina Marinescu, Catherine Middleton, Shuang Yin, Tim Forde, Kevin Bourg, Eugene Dai,Ed Harstead, Philippe Chanclou, Hal Roberts, Volker Jungnickel, Sergi Figuerola, Tomoo Takahara,Rajesh Yadav, Peter Vetter, Denis A. Khotimsky, and Jun Shan Wey. Connected OFCity: TechnologyInnovations for a Smart City Project. IEEE/OSA Journal of Communications and Networking, Vol. 9,No 2, Feb 2017.

7. A. Arokkiam, P. Alvarez, X. Wu, K.N. Brown, C.J. Sreenan, M. Runi, N. Marchetti, L. Doyle, D.Payne. Design, Implementation, and Evaluation of an XG-PON Module for ns-3. Transactions of TheSociety for Modeling and Simulation International, January 2017.

8. A. Nag, M. Furdek, P. Monti, L. Wosinska and M. Runi. Exploiting Dual Homing in Access Net-works to Improve Resiliency in Core Networks. IEEE/OSA Journal of Optical Communications andNetworking, vol. 8, No. 11, October 2016.

9. S. McGettrick, F. Slyne, N. Kitsuwan, D.B. Payne, and M. Runi. Experimental End-to-End Demonstra-tion of Shared N:M Dual Homed Protection in SDN-controlled Long Reach PON and Pan-EuropeanCore. IEEE/OSA Journal of Lightwave technology, vol. 34, No. 18, September 2016.

10. P. Alvarez, N. Marchetti, and Marco Runi. Evaluating Dynamic Bandwidth Allocation of VirtualizedPassive Optical Networks Over Mobile Trac Traces. IEEE/OSA Journal of Optical Communicationsand Networking, vol. 8, No. 3, March 2016.

11. A. Nag, D. B. Payne, and Marco Runi. N?1 Protection Design for Minimizing OLTs in ResilientDual-Homed Long-Reach Passive Optical Network. IEEE/OSA Journal of Optical Communicationsand Networking, vol. 8, No. 2, February 2016.

12. M. Runi, G. Cincotti, A. Pizzinat, P. Vetter. Editorial: Next Generation Access Networks. ElsevierOptical Fibre Technology, Vol. 26, part A, December 2015.

13. M. Runi, F. Slyne, C. Bluemm, N. Kitsuwan, S. McGettrick. Software Dened Networking for nextgeneration converged metro-access networks. Elsevier Optical Fibre Technology special issue onNext Generation Access, Vol. 26, part A, December 2015.

14. K. Christodoulopoulos, D. Lugones, K. Katrinis, M. Runi, D. O?Mahony. Performance evaluation of ahybrid Optical/Electrical interconnect. IEEE/OSA Journal of Optical Communications and Networking,vol. 7, No. 3, March 2015.

15. N. Kitsuwan, S. McGettrick, F. Slyne, D. B. Payne and M. Runi. An Independent Transient PlaneDesign for Protection in OpenFlow-based Networks. IEEE/OSA Journal of Optical Communicationsand Networking, vol. 7, No. 4, April 2015.

16. N. Kitsuwan, F. Slyne, S. McGettrick, D. B. Payne and M. Runi. A Europe-Wide Demonstration ofFast Network Restoration with OpenFlow. IEICE Communications Express, Vol. 3, No. 9, September2014.

17. E. Di Pascale, D. B. Payne, L. Wosinska and M. Runi. Locality-Aware P2P Multimedia Delivery overNext-Generation Optical Networks. JOCN, vol. 6, no. 9, September 2014.

18. M. Runi, L. Wosinska, M. Achouche, J. Chen, N. J. Doran, F. Farjady, J. Montalvo, P. Ossieur, B.O?Sullivan, N. Parsons, T. Pfeier, X.-Z. Qiu, C. Raack, H. Rohde, M. Schiano, P. Townsend, R. Wessaly,X. Yin, D. B. Payne, DISCUS: An end-to-end solution for ubiquitous broadband optical access. IEEECom. Mag., vol. 52, no. 2, February 2014.

19. P. Loskot, M.A.M. Hassanien, F. Farjady, M. Runi and D. Payne, Long-term drivers of broadbandtrac in next-generation networks. Springer annals of Telecommunications, February 2014.

20. K. Christodoulopoulos, K. Katrinis, M. Runi, D. O?Mahony. Tailoring the network to the problem:topology conguration in hybrid electronic packet switched/optical circuit switched interconnects.Concurrency and Computation: Practice and Experience, Wiley Online Library, 2013.

21. M. Runi, D. Mehta, B. O?Sullivan, L. Quesada, L. Doyle, D. B. Payne. Deployment Strategies forProtected Long-Reach PON. IEEE/OSA Journal of Optical Communications and Networking, vol. 4,Issue 2, p118 ? 129, Jan 2012.

22. P. Szegedi, J.F. Riera, J.A. Garcia-Espin, M. Hidell, P. Sjodin, P. Soderman, M. Runi, D. O?Mahony, A.Bianco, L. Giraudo, M. Ponce de Leon, G. Power, C. Cervello-Pastor, V. Lopez, S. Naegele-Jackson.Enabling future internet research: the FEDERICA case. IEEE Communications Magazine, vol. 49, no.7, pp 54-61, July 2011.

23. M. Runi, D. O?Mahony, L. Doyle. Optical IP Switching: a ow-based approach to distributed cross-layer provisioning.IEEE/OSA Journal of Optical Communications and Networking, Vol. 2, Issue 8, pp.609-624, August 2010.

24. M. Runi, D. O?Mahony, L. Doyle. Automatic Conguration in Future Semi-Transparent OpticalNetwork Nodes. Springer Photonic Network Communications Journal, vol. 14, no. 3, pp 241-251, 2007.

25. H-J. Reumerman, M. Roggero, M. Runi. Application-Based Clustering Concept and Requirementsfor Intervehicle Networks. IEEE Communications Magazine, vol. 43, no. 4. May 2005.

PEER-REVIEWED INTERNATIONAL CONFERENCES

1. Giuseppe Talli, Stefano Porto, Daniel Carey, Nicola Brandonisio, Peter Ossieur, Frank Slyne, SeamasMcGettrick, Christian Blumm, Marco Runi, Alan Hill, David Payne, Paul Townsend, Metro-ScaleOptical Access Supporting Service Convergence and SDN Controlled Recongurability. Proc. of IEEEPhotonic Conference, Oct. 2017.

2. D.B. Payne, A. Arbelaez, R. Bonk, N. J. Doran, M. Furdek, R. Jensen, N. Parsons, T. Pfeier, L. Quesada,C. Raack, G. Talli, P. Townsend, R. Wessaly, L. Wosinska, X. Yin and M. Runi, End-to-end networkdesign and experimentation in the DISCUS project. Proc. of International Conference on TransparentOptical Networks (ICTON), July 2017.

3. Paulo Marques, Carlos Silva, Valerio Frascolla, Edmundo Madeira, Cristiano Both, Moises Ribeiro,Pekka Aho, F. Macedo, Ali Hammad, Pedro Alvarez, Marco Runi, Johann M. Marquez-Barja and LuizDaSilva, Experiments Overview of the EU-Brazil FUTEBOL Project. Proc. of European Conferenceon Networks and Communications (EuCNC), July 2017.

4. Giuseppe Talli, Stefano Porto, Daniel Carey, Nicola Brandonisio, Alan Naughton, Peter Ossieur,Paul Townsend, Rene Bonk, Thomas Pfeier, Frank Slyne, Seamas McGettrick, Christian Blumm,Marco Runi, Alan Hill, David Payne, Nick Parsons, Multi-service SDN Controlled RecongurableLongReach Optical Access Network. Proc. of European Conference on Networks and Communications(EuCNC), July 2017.

5. Amr Elrasad and Marco Runi, Frame Level Sharing for DBA Virtualization in Multi-Tenant PONs.Proc. Of Optical Networks Design and Modeling (ONDM), May 2017.

6. Giuseppe Talli, Stefano Porto, Daniel Carey, Nicola Brandonisio, Peter Ossieur, Paul Townsend, ReneBonk, Thomas Pfeier, Frank Slyne, Seamas McGettrick, Christian Blumm, Marco Runi, Alan Hill,David Payne, Nick Parsons, Technologies and Architectures to Enable SDN in Converged 5G/OpticalAccess Networks. Proc. Of Optical Networks Design and Modeling (ONDM), May 2017.

7. Christian Bluemm, Yi Zhang, Pedro Alvarez, Marco Runi and Luiz A. DaSilva, Dynamic EnergySavings in Cloud-RAN: An Experimental Assessment and Implementation. ICC 2017, May 2017.

8. Marco Baldi, Franco Chiaraluce, Lorenzo Incipini and Marco Runi. Physical layer secret key genera-tion in passive optical networks. BalkanCom, Conference on Communications and Networking, May2017.

9. Amr Elrasad, Nima Afraz, and Marco Runi, Virtual Dynamic Bandwidth Allocation Enabling TruePON Multi-Tenancy. OFC, March 2017.

10. Irene Macaluso, Bruno Cornaglia, Marco Runi, Antenna, Spectrum and Capacity trade-o forCloud-RAN Massive Distributed MIMO over Next Generation PONs. OFC, March 2017.

11. Avishek Nag, Yi Zhang, Luiz A. DaSilva, Linda Doyle, and Marco Runi, Integrating Wireless BBUswith Optical OFDM Flexible-Grid Transponders in a C-RAN Architecture. OFC, March 2017.

12. J. M. Marquez-Barja, M. Runi, N. Kaminski, N. Marchetti, L. Doyle and L. A. DaSilva, DecouplingResource Ownership From Service Provisioning to Enable Ephemeral Converged Networks (ECNs).IEEE EuCNC, June 2016.

13. G. Talli, S. Porto, D. Carey, N. Brandonisio, A. Naughton, P. Ossieur, F. Slyne, S. McGettrick, C. Blum,M. Runi, D. Payne, R. Bonk, T. Pfeier, N. Parsons, P. Townsend. Demonstration of SDN EnabledDynamically Recongurable High Capacity Optical Access for Converged Services. OFC, March 2016,post-deadline paper.

14. M. Runi, Metro-Access Network Convergence, OFC 2016, invited tutorial Th4B.1.

15. F. Slyne and M. Runi. FLATLANd: A Novel SDN-Based Telecoms Network Architecture EnablingNFV and Metro-Access Convergence. ONDM, May 2016. Conferred best student paper award.

16. P. Alvarez, A. Hill, N. Marchetti, D. Payne and M. Runi. Analysis of the Maximum Balanced Load inLong-Reach PONs. ONDM, May 2016.

17. C. Raack, R. Wessaely, D. Payne, M. Runi. Hierarchical Versus Flat Optical Metro/Core Networks: ASystematic Cost and Migration Study. ONDM, May 2016.

18. J. M. Gran Josa, V. Lopez, F. Slyne, M. Runi, R. Vilalta, A. Mayoral, R. Munoz, R. Casellas, R.Martinez.End-to-end Service Orchestration From Access to Backbone. ONDM, May 2016.

19. R. Vilalta, V. Lopez, A. Mayoral, N. Yoshikane, M. Runi , D. Siracusa, R. Mart?nez, T. Szyrkowiec,A. Autenrieth, S. Peng, R. Casellas, R. Nejabati, D. Simeonidou, X. Cao, T. Tsuritani, I. Morita, J.P. Fernandez-Palacios, and R. Munoz. The Need for a Control Orchestration Protocol in ResearchProjects on Optical Networking. EuCNC, July 2015.

20. E. Di Pascale and M. Runi. Cache Storage Optimization for Locality-Aware Peer-to-Peer MultimediaDistribution. ICC, June 2015.

21. S. McGettrick, F. Slyne, N. Kitsuwan, D.B. Payne, M. Runi. Experimental End-to-End Demonstrationof Shared N:1 Dual Homed Protection in Long Reach PON and SDN-Controlled Core. Paper Tu2E.5,OFC, March 2015.

22. E. Di Pascale, F. Slyne and M. Runi. A Transparent OpenFlow-based Oracle for Locality-AwareContent Distribution. IEEE Networks 2014.

23. F. Slyne, N. Kituswan, S. McGettrick, D.B. Payne and Marco Runi. Design and experimental test of1:1 End-to-End Protection for LR-PON using an SDN multi-tier Control Plane. Paper Mo.3.2.4, ECOC2014.

24. F. Slyne, M. Runi. An SDN-Driven Approach to a Flat Layer-2 Telecommunications Network. ICTON2014.

25. N. Kitsuwan, D.B. Payne, M. Runi. A novel protection design for OpenFlow-based Networks. ICTON2014.

26. A. Di Giglio, M. Schiano, M. Runi, D.B. Payne, N. Doran, M. Achouche, R. Jensen, B. O?Sullivan,T. Pfeier, R. Bonk, H. Rohde, X. Yin, R. Wessaly, L. Wosinska, J. Montalvo, G. Talli. Towards theDistributed Core for Ubiquitous Superfast Broadband Optical Access. EuCNC 2014.

27. P. Alvarez, N. Marchetti, D.B. Payne, M. Runi. Backhaul Mobile Systems with GPON using GroupAssured Bandwidth. NOC 2014.

28. C. Zukowski, D. B. Payne, M. Runi. Modelling accurate planning of PON networks to reduce initialinvestment in rural areas. ONDM 2014.

29. S. Pal, C. Zukowski, A. Nag, D. B. Payne and M. Runi. Cable Length Minimisation in Long-Reach-PON Planning for Sparsely Populated Areas. ONDM 2014

30. D. Mehta, B. O?Sullivan, L. Quesada, M. Runi , D.B. Payne, L. Doyle. A Scalable OptimisationApproach to Minimising IP Protection Capacity for Long-Reach PON. ONDM 2014.

31. X. Yin, X.Z. Qiu, G. Torfs, C. Van Praet, R. Vaernewyck, A. Vyncke, J. Verbrugghe, B. Moeneclaey,M.Runi, D.B. Payne, and J. Bauwelinck. Performance Evaluation of Single Carrier 40-Gbit/s Down-stream for Long-Reach Passive Optical Networks. ONDM 2014.

32. A. Nag, D. B. Payne, M. Runi, N:1 Protection Design for Minimising OLTs in Resilient Dual-HomedLong-Reach Passive Optical Network. Paper Tu2F.7, OFC 2014.

33. K. Christodoulopoulos, K. Katrinis, M. Runi, D. O?Mahony, Accelerating HPC Workloads withDynamic Adaptation of a Software-Dened Hybrid Electronic/Optical Interconnect. Paper Th2A.11,OFC 2014.

34. D. B. Payne, M. Runi, An End to End Architecture for Ubiquitous Super-Fast Broadband. Asiacommunications and photonic conference, 2013.

35. E. Di Padcale, D. B. Payne, M. Runi, Impact of Popularity Evolution on P2P-Based VoD Deliveryover Next-Generation Optical Access Networks. Globecom conference 2013.

36. S. McGettrick, L. Guan, A. Hill, D.B. Payne, M. Runi, Ultra-fast 1+1 Protection in 10 Gb/s SymmetricLong Reach PON. ECOC 2013.

37. D. Lugones, K. Christodoulopoulos, K. Katrinis, M. Runi, D. O?Mahony, M. Collier, Acceleratingcommunication-intensive parallel workloads using commodity optical switches and a software-congurable control stack. International European Conference on Parallel and Distributed Computing(Euro-Par 2013).

38. M. Runi , E. Di Pascale, D.B. Payne, Improving high delity multimedia distribution in next-generation optical networks (Invited). ICTON conference 2013.

39. M. Runi, N. Doran, M. Achouche, N. Parsons, T. Pfeier, X. Yin, H. Rohde, M. Schiano, P. Ossieur,B. O?Sullivan, R. Wessaly, L. Wosinska, J. Montalvo and D.B. Payne, DISCUS: End-to-end networkdesign for ubiquitous high speed broadband services (Invited). ICTON conference, 2013.

40. D. Mehta, B. O?Sullivan, L. Quesada, D.B. Payne, L. Doyle, M. Runi, Routing and network designfor HEAnet (Invited). ICTON conference, 2013.

41. C. Zukowski, D.B. Payne, M. Runi, Optical Splitters Conguration for Long-Reach Passive OpticalNetwork Deployment. NOC conference, 2013

42. M. Runi, D.B. Payne, N. Doran, M. Achouche, N. Parsons, T. Pfeier, X. Yin, H. Rohde, M. Schiano,P. Ossieur, B. O?Sullivan, R. Wessaly, L. Wosinska and J. Montalvo, DISCUS: the Distributed Core forUbiquitous Broadband Access, FUNEMS conference, 2013.

43. S. McGettrick, D. B. Payne and M. Runi, Improving Hardware Protection Switching in 10Gb/sSymmetric Long Reach PONs, Optical Fibre Copnference (OFC), Anaheim, CA, 2013.

44. X. Wu, K. Brown, C. Sreenan, P. Alvarez, M. Runi, N. Marchetti, D. B. Payne and L. Doyle, AnXG-PON Module for the NS-3 Network Simulator, WNS3, International Conference on SimulationTools and Techniques, 2013

45. K. Christodoulopoulos, K. Katrinis, M. Runi, D. O?Mahony. Topology Conguration in HybridEPS/OCS Interconnects. International European Conference on Parallel and Distributed Computing(Euro-Par 2012), Rhodes, Greece, August 27th-31st, 2012. Received ?Distinguished Paper Award?

46. E. Di Pascale, D. B. Payne, M. Runi. Bandwidth and Energy Savings of Locality-Aware P2P ContentDistribution in Next-Generation PONs. Proceedgins of IEEE Optical Network Design and Modelling,University of Essex, UK, 2012

47. M. Runi, D. Mehta, B. O?Sullivan, L. Quesada, L. Doyle, D. B. Payne. Deployment case studies of anenergy ecient protected LR-PON architecture. Proceedings of IEEE Optical Network Design andModelling, University of Essex, UK, 2012

48. H. Cambazard, D. Mehta, B. O?Sullivan, L. Quesada, M. Runi, D. B. Payne, L. Doyle. A CombinatorialOptimisation Approach to the Design of Dual Parented Long-Reach Passive Optical Networks.Proceedings of 23rd IEEE International Conference on Tools with Articial Intelligence (ICTAI), BocaRaton, Florida, USA, 7-9 November 2011

49. M. Runi, B. O?Sullivan, D. Metha, L. Quesada, F. Farjady, N. Doran, D. Payne, A protected LR-PONdeployment for the UK, EPSRC photonic communications workshop, Oxford, UK, 28-29 Septemner2011

50. F. Farjady, M. Runi, D. Payne, N. Doran, Techno-economic comparison of GPONs and long-reachPONs, EPSRC photonic communications workshop, Oxford, UK, 28-29 Septemner 2011

51. H. Cambazard, D. Mehta, B. O?Sullivan, L. Quesada, M. Runi, D. B. Payne, L. Doyle. A CombinatorialOptimisation Approach to the Design of Dual Parented Long-Reach Passive Optical Networks.Proceedings of 22nd Irish Conference on Articial Intelligence and Cognitive Science. AICS 2011.

52. D. Mehta, B. O?Sullivan, L. Quesada, M. Runi, D. Payne, L. Doyle. Designing Resilient Long-ReachPassive Optical Networks. Proceedings of IAAI Conference on Articial Intelligence 2011.

53. M. Runi, D. Payne, L. Doyle. Protection Strategies for Long-Reach PON. ECOC 2010.

54. M. Runi, D. O?Mahony, L. Doyle. Testing the impairments of dynamic optical switching on TCPtrac through the European FEDERICA testbed infrastructure. ICTON 2010.

55. M. Runi, D. Kilpler, D. O?Mahony, L. Doyle. Cost Study of Dynamically Transparent Networks.OSA Optical Fiber Communication Conference, 2008.

56. M. Runi, D. O?Mahony, L. Doyle. Dynamic Optical Path Allocation in Multi-Layer Trac Engineer-ing. In proceedings of the Workshop on Trac Engineering in Next Generation IP Networks, IEEEInternational Conference on Communications, pp 11-12, 2007.

57. M. Runi, D. O?Mahony, L. Doyle. Optical IP Switching for dynamic trac engineering in next-generation optical networks. In proceedings of the conference on Optical Networks Design andModeling, Springer press, pp 309-318, 2007.

58. A. Sanchez, S. Figuerola, G. Junyent, E. Kenny, V. Reijs, M. Runi. A user provisioning tool forEoMPLS services based on UCLPv1.5. In proceedings of the TERENA Networking Conference, 2007.

59. M. Runi, D. O?Mahony, L. Doyle. Feasibility of Flow-Based Optical Provisioning in GEANT. Inproceeding of the OSA Optical Fiber Communication conference, 2007.

60. D. O?Mahony, M. Runi. Optical IP Switching ? A Responsive Solution for Grid Interconnect. Inproceedings of the International Workshop on Autonomic Grid Networking and Management, 2006.

61. M. Runi, D. O?Mahony, L. Doyle. A cost analysis of Optical IP Switching in new generation opticalnetworks. In proceesings of the IEEE Photonics in Switching conference, 2006.

62. G. Mulvihill, M. Runi, F. Smith, L. Barry, L. Doyle, D. O?Mahony. Optical IP Switching a Solution toDynamic Lightpath Establishment in Disaggregated Network Architectures. In proceedings of theIEEE International Conference on Transparent Optical Networks, pp 78-81, 2006.

63. M. Runi, D. O?Mahony, L. Doyle. A Testbed Demonstrating Optical IP Switching (OIS) in Disag-gregated Network Architectures. In proceedings of the IEEE conference on Testbeds and ResearchInfrastructure for the Development of Network and Communities, 2006.

64. M. Runi, H-J. Reumerman. Power-Rate adaptation in high-mobility distributed ad-hoc wirelessnetworks. IEEE Vehicular Technology Conference (VTC?05), May 2005.

65. M. Runi, H-J. Reumerman. Distributed Power Control for Reliable Broadcast in Inter-VehicleCommunication Systems. 2nd International Workshop on Intelligent Transportation (WIT 2005),March 2005.

66. P.J.F. Maguire, M. Runi, L.P. Barry. All-Optical Switching Techniques to Enable High-Speed, NextGeneration Photonic Transport Systems . IEI/IEE Symposium on Telecommunications SystemsResearch, November 2001.

WHITE PAPERS

1. M. Runi, D. B. Payne. Business and ownership model case studies for next generation FTTHdeployment. February 2016.

2. D.B. Payne, M. Runi. Local Loop Unbundling regulation: is it a barrier to FTTH deployment?February 2016.

3. M. Runi, D. B. Payne, T. Pfeier, W. Graudszus, K. Pulverer, J. M. Garcia, A. Di. Giglio, R. Wessaelyand G. Talli. Wavelength usage options in access networks. November 2013.

4. ??M. Runi, D. B. Payne, T. Pfeier, W. Graudszus, K. Pulverer, J. M. Garcia, A. Di. Giglio, R. Wessaelyand G. Talli. Business and ownership models for future broadband networks. November 2013.

PH.D THESIS

Marco Runi. Optical IP Switching, Computer Science Department, University of Dublin, TrinityCollege, 2008.

BOOK CHAPTERS

S. Figuerola, J. A. Garcia-Espin, J. Ferrer Riera, V. Reijgs, E. Kenny, M. Lemay, M. Savoie, S. Campbell,M. Runi, E. Grasa, A. Willner ?Bringing Optical Network Control to the User Facilities: Evolution ofthe User Controlled Lightpath Provisioning Paradigm?, in Cross-Layer Design in Optical Networks,Springer 2012.

https://mruffini.files.wordpress.com/2016/02/business_mod_case_studies_final.pdfhttps://mruffini.files.wordpress.com/2016/02/business_mod_case_studies_final.pdfhttps://mruffini.files.wordpress.com/2016/02/llu-white-paper-final.pdfhttps://mruffini.files.wordpress.com/2016/02/llu-white-paper-final.pdfhttps://mruffini.files.wordpress.com/2016/02/discus-white-paper_wavelength-usage-options-in-access-networks.pdfhttps://mruffini.files.wordpress.com/2016/02/discus-white-paper_wavelength-usage-options-in-access-networks.pdfhttps://mruffini.files.wordpress.com/2011/02/optical-ip-switching.pdf

PATENTS

1. M. Runi, A. Elrasad, N. Afraz. System and Method for Dynamic Bandwidth Assignment (DBA)Virtualization in a Multi-Tenant Passive Optical Network. Filed on March 2017.

2. M. Runi, S. McGettrick, D.B. Payne, A. Hill. Mirrored Passibruary 2015.ve Optical Access Network.Filed as PCT/EP2014/076297, December 2014.

3. P. Alvarez, N. Marchetti, M. Runi, D.B. Payne. Method and Scheduler for Grouped TransmissionContainers in Passive Optical Networks. Filed in UK as 1418192.9, October 2014.

4. A. Van Wageningen, M. Runi. Communication Device and Communication System as Well asMethod of Communication Between and Among Mobile Nodes. Patent No. US2008055068, publishedas WO2006008722(A1), 06-03-2008. Patent No. EP1774677, published as EP1774677(A0) in 18-04-2007.

5. M. Runi, J. Habetha. Device and method for event-triggered communication between and among aplurality of nodes. Patent No. CN101057463 published as WO2006051436(A1) in 17-10-2007. PatentNo. EP1813065 published as EP1813065(A0) in 01-08-2007.

6. M. Runi, A. Van Wageningen. Scheduling the transmission of messages on a broadcast channel ofan AD-HOC network dependent on the usage of this channel. Patent No. CN101023635, published asWO2006011109(A1), 22-08-2007. Patent No. EP1782588, published as EP1782588(A0) 09-05-2007.

7. M. Roggero, A. Van Wageningen, H.-J. Reumerman, M. Runi. Communication System, Method OfCommunication Between And Among Vehicles And Vehicle Comprising Such A CommunicationSystem. Patent No. US2007197230, published as WO2005107181(A1), 23-08-2007. Patent No. EP1745605,published as EP1745605(A0) in 24-01-2007.

8. M. Runi. Controller unit, communication device and communication system as well as method ofcommunication between and among mobile nodes. Patent No. CN1989704, published as CN1989703(A)in 27-06-2007. Patent No. KR20070042149, published as WO2006011123(A1) in 20-04-2007. Patent No.EP1774675, published as EP1774675(A0) in 18-04-2007.

9. M. Runi , H.-J. Reumerman. Method for Communicating Between a Plurality of Nodes Using aWireless Communication Protocol, Inter-Vehicle Network. Published as WO2007034387 in 29-03-2007.

10. M. Runi, A. Van Wageningen. Method of improving communication between mobile nodes. PatentNo. CN1914863, published as WO2005074199(A1) in 14-02-1007. Patent No. EP1714438, published asEP1714438(A0) in 25-10-2006.

11. M. Runi. Method for Determining the Head Element of a Cluster. Published as WO2005074201 in11-08-2005.

Documents

Marco Rufﬁni - WordPress.com · Marco Rufﬁni CONNECT research ... • 2015-2018: SFI/NSF/EPSRC ... (from micro to macro DCs) and from DC to 5G devices, such as mobile base stations