EuCNC Paris, France, June 29/July 2, 2015

EuCNC Paris, France, June 29/July 2, 2015



Workshop WO#7

This document contains the final program of the Workshop WO#7 to be organised within EuCNC’2015.

  • Proposer’s Names

General Chairs: Thierry Klein (Bell Labs) and Dominique Chiaroni (Bell Labs),

e-mails: &


Co-chairs: Prof. Lars Dittmann (DTU-COM), Dr. Azeddine Gati (Orange Labs), Prof. Jaafar Elmirghani (University of Leeds) and Prof. Kevin Williams (TuE).

  • Proposer’s Institution

Alcatel-Lucent Bell Labs

  • Proposer’s Emails &

  • Proposer’s CV

CVs of the General Chairs:

Dr. Thierry Klein is currently the Program Leader for the Network Energy Research Program at Bell Labs, Alcatel-Lucent leading a team of researchers, engineers and scientists across multiple research domains and locations with the mission to conduct research towards the design, development and use of sustainable future communications and data networks. He also serves as the Chairman of the Technical Committee of GreenTouch, a global consortium dedicated to improve energy efficiency in networks by a factor 1000x compared to 2010 levels. Since 2014, he is also a member of the Momentum for Change Advisory Panel of the UN Framework Convention for Climate Change (UNFCCC). He joined Bell Labs Research in Murray Hill, New Jersey in 2001 and has been conducting fundamental and applied research on next-generation wireless and wireline networks, network architectures, algorithms and protocols, network management, optimization and control. From 2006 to 2010 he served as the Founder and CTO of an internal start-up focused on wireless communications for emergency response and disaster recovery situations within Alcatel-Lucent Ventures. Thierry returned to Bell Labs Research in early 2010 and has since then been working on and leading research efforts into energy efficient, low power and sustainable communication networks. He earned an MS in Mechanical Engineering and an MS in Electrical Engineering from the Université de Nantes and the Ecole Centrale de Nantes in Nantes, France.  Thierry received a PhD in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology, USA. He is an author on over 35 peer-reviewed conference and journal publications and an inventor on 36 patent applications. He is the recipient of a Bell Labs’s President Award and two Bell Labs Teamwork Awards. In 2010, he was voted “Technologist of the Year” at the Total Telecom World Vendor Awards.

Dominique Chiaroni was born in Ajaccio, in April 27th, 1962. Graduated in Mechanics (IUT d’Aix-en-Provence), in Thermal sciences & Physics (Licence & Maitrise at the University of Corsica), and in Optics and Microwaves (Engineer diploma obtained in 1990 from Telecom SudParis), he was engaged in 1990 by Alcatel CIT to work on optical switching technologies and related systems and networks. Since 2000, he focused mainly his research in the identification of pragmatic directions for the design of hybrid systems and networks and is an expert in Optical Networking. In the past he was actively involved in many European and National projects with the following responsibilities: project leader of the ANR ECOFRAME (2007-2010), work-package leader of the FP7 ALPHA European project (2007-2011), responsible for Bell Labs France for the NTT-ALU strategic collaboration (2008-2011). Currently working in the Network Energy program in Alcatel-Lucent Bell Labs France, his objective is to minimize the energy consumption of systems and networks covering different network segments through an eco-design and an eco-management approach. He is author and co-author of more than 200 publications and patents including numerous invited papers and Tutorials, and contributions in books. Chair or co-chair of International conference or workshops he is also a regular member of the technical committees of International Conferences (currently ONDM 2015, PS2015 and Photoptics 2015) or jury member of PHDs and HDR. Distinguished member of the Alcatel-Lucent Technical Academy from 2003 to 2013, he was also the ALTA Chapter Chair in France from 2005 to 2013 where he actively participated to different missions: steering committees, chapter working groups, organization of workshops and local events.

CV of the Co-Chairs:

Prof. Jaafar M. H. Elmirghani is the Director of the Institute of Integrated Information Systems within the School of Electronic and Electrical Engineering, University of Leeds, UK. He joined Leeds in 2007 and prior to that (2000–2007) as chair in optical communications at the University of Wales Swansea he founded, developed and directed the Institute of Advanced Telecommunications and the Technium Digital (TD), a technology incubator/spin-off hub. He has provided outstanding leadership in a number of large research projects at the IAT and TD. He received the Ph.D. in the synchronization of optical systems and optical receiver design from the University of Huddersfield UK in 1994 and the DSc in Communication Systems and Networks from University of Leeds, UK, in 2014 . He has co-authored Photonic switching Technology: Systems and Networks, (Wiley) and has published over 400 papers. He has research interests in optical systems and networks. Prof. Elmirghani is Fellow of the IET, Fellow of the Institute of Physics and Senior Member of IEEE. He was Chairman of IEEE Comsoc Transmission Access and Optical Systems technical committee and was Chairman of IEEE Comsoc Signal Processing and Communications Electronics technical committee, and an editor of IEEE Communications Magazine. He was founding Chair of the Advanced Signal Processing for Communication Symposium which started at IEEE GLOBECOM’99 and has continued since at every ICC and GLOBECOM. Prof. Elmirghani was also founding Chair of the first IEEE ICC/GLOBECOM optical symposium at GLOBECOM’00, the Future Photonic Network Technologies, Architectures and Protocols Symposium. He chaired this Symposium, which continues to date under different names. He was the founding chair of the first Green Track at ICC/GLOBECOM at GLOBECOM 2011, and is Chair of the IEEE Green ICT committee within the IEEE Technical Activities Board (TAB) Future Directions Committee (FDC), a pan IEEE Societies committee responsible for Green ICT activities across IEEE, 2012-2015. He is and has been on the technical program committee of 33 IEEE ICC/GLOBECOM conferences between 1995 and 2014 including 14 times as Symposium Chair. He received the IEEE Communications Society Hal Sobol award, the IEEE Comsoc Chapter Achievement award for excellence in chapter activities (both in 2005), the University of Wales Swansea Outstanding Research Achievement Award, 2006, the IEEE Communications Society Signal Processing and Communication Electronics outstanding service award, 2009 and a best paper award at IEEE ICC’2013. He is currently an editor of: IET Optoelectronics, Journal of Optical Communications, IEEE Communications Surveys and Tutorials and IEEE Journal on Selected Areas in Communications series on Green Communications and Networking. He is Co-Chair of the GreenTouch Wired, Core and Access Networks Working Group, an adviser to the Commonwealth Scholarship Commission, member of the Royal Society International Joint Projects Panel and member of the Engineering and Physical Sciences Research Council (EPSRC) College. He has been awarded in excess of £22 million in grants to date from EPSRC, the EU and industry and has held prestigious fellowships funded by the Royal Society and by BT. He is an IEEE Distinguished Lecturer 2013-2016 with a focus on Green Communications.

Prof. Lars Dittmann: was born in 1962 and received the M.Sc. EE and Ph.D. from the Technical University of Denmark in 1988 and 1994. Lars Dittmann is currently Professor at DTU within the area of integrated networks where he is heading the Networks Technology & Service Platforms group (covering both optical and electrical networks) as well as the whole communication technology cluster (including more than 80 researchers and phd students). Lars Dittmann has management experience from several national and international research projects. He is currently project manager for the FP7 IP project COSIGN (research in optical networking technologies for datacentre networks) and has been technical leader of the IST project DAVID on optical packet switched network with QoS provisioning for service differentiation. Furthermore, Lars Dittmann is member of the department management, board member for the Danish engineering society telecommunication subcommittee and has actively been involved in a number of start-up companies initiated from the Technical University of Denmark (DTU).

Prof. Kevin Williams (♂) received the B.Eng. degree from the University of Sheffield, Sheffield, U.K., in 1991, and the Ph.D. degree from the University of Bath, Bath, U.K., in 1995. He was awarded a Royal Society University research fellowship at the University of Bristol, Bristol, U.K in 1996. He moved to the University of Cambridge, Cambridge, U.K., in 2001 and was elected Fellow at Churchill College. In 2006, he was awarded a European Commission Marie Curie Chair at the Eindhoven University of Technology, The Netherlands. In 2011, he received a Vici award from the Netherlands Organization for Scientific Research (NWO) to study large scale optoelectronic circuit intergration. He is professor and chair of the Photonic Integration group.

  • Workshop Title

State of the Art Research Results in Green and Energy Efficient Communications for the Telecommunication Networks of Tomorrow

Summary: The predicted capacity growth in data networks is driven by an accelerated traffic growth from bandwidth hungry applications and services, an explosion of devices and machines connected to the Internet of Everything and ever more distributed data centers and content distribution servers. This fundamental trend in communications, computing and storage networks creates a need to investigate new research directions to reduce the energy consumption of the future fully connected world and make energy efficiency a primary design goal for ICT networks of the future. The need to reduce the energy consumption of future networks is reinforced by rising energy costs, environmental and political considerations for greater energy autonomy and stability in energy supplies for the next decade.

The first part of the workshop will report on the results of the GreenTouch consortium where the final event will be held in New York in June 2015. This workshop will cover the major results and technologies from the GreenTouch portfolio and show the potential energy efficiency improvements. The second part of the workshop discusses open challenges and new research directions for further energy efficiency improvements, with a particular focus on optical and future data centre networks.

This workshop is an opportunity to bring together research experts, scientists and engineers from industry and academia sharing the state of the art in energy efficiency communication and networking research.

  • Duration

Half day. Monday June 29th, 2015, room #7.

  • Motivation and Background

Bell Labs / Alcatel-Lucent has identified early on a need to reduce the energy consumption of communication networks and made improved energy efficiency one of its innovation pillars. Recognizing the need for cross-disciplinary research work, Bell Labs has participated in several different initiatives and national or European projects (including for example ECOFRAME, DAVID, EARTH, STRONGEST, TREND). In 2010, Bell Labs launched a global precompetitive research consortium called GreenTouch ( with the objective to propose, validate and demonstrate new architectures, technologies and solutions to improve the energy efficiency of networks (wireless access, fixed access and core transmission networks) by a factor of 1000 compared to state of the art network technologies in 2010. Bell Labs also has its own internal research program to address different aspects of the network in the perspective of energy reduction, improved energy efficiency and energy autonomy , covering short, medium and long term objectives. Finally Bell Labs has developed and publicly released a web-based application ( to understand the energy consumption in networks from an end-to-end perspective and analyze its evolution based on different traffic growth and network technology evolution scenarios.

  • Structure

Agenda of the workshop

9h00 – 10h30:Overview of Latest GreenTouch Research Results and Technology Portfolio and Future PerspectivesSession Chair: Dr. Thierry Klein (Bell Labs, USA)

Abstract: The Chairman of the GreenTouch Technical Committee (Dr. Thierry Klein) and Working Group / Project Leaders from GreenTouch will present and describe the main results of the GreenTouch consortium, covering wireless access, fixed access and core network technologies.

9h00 – 9h30: “GreenTouch: The Road to 1000x Improvement in Energy Efficiency”, Dr. Thierry Klein (Bell Labs, USA),

Abstract: In this presentation, I will give an overview and motivation for the GreenTouch consortium and present the main results, architectures and technologies that contribute to dramatically improving the network energy efficiency. The results from the “green meter” study and the technology portfolio will be highlighted through an interactive demonstration of the GWATT application.

9h30 – 9h45:GreenTouch Energy Efficient Architecture for Optical Access Networks”, Dr. Sofie Lambert (IMEC, Belgium),

Abstract: This presentation zooms in on the green optical access evolution envisioned by GreenTouch. To achieve optimal energy efficiency in 2020, the proposed architecture incorporates Bit-Interleaved Passive Optical Networks for residential access, a redesigned Point-to-Point optical link for business access and in-home connections, virtual home gateways, and sleep modes.

9h45 – 10h00: “Virtual Home Gateways for Large Scale Energy Efficiency”, Dr. Laurent Lefevre (INRIA, France),

Abstract: This talk will cover some recent research activities done in the GreenTouch consortium, on virtualising home gateways and deploying services in remote datacenters. This approach will allow some energy reduction for communications networks and equipments.

10h00 – 10h15: “GreenTouch Core Network Energy Efficiency Improvement Measures”, Prof. Jaafar Elmirghani (University of Leeds, UK),

Abstract: The key measures developed by GreenTouch to improve the energy efficiency of future core networks are described considering a 2020 traffic scenario. The measures include improvements to core network equipment design, optimum routing, content distribution, topology design, sleep mechanisms and virtualization.


10h15 – 10h30: “Focusing Antennas for 5G Green Networks in Challenging Scenarios”, Dr. Dinh-Thuy Phan-Huy (Orange Labs Research, France),

Abstract: Connecting almost electronic-free objects or very fast moving vehicles is far more challenging and energy consuming than connecting a slow moving and sophisticated device … except with time reversal focusing!


10h30 – 11h00: Break

11h00 – 12h30: Session Chair : Dominique Chiaroni (Bell Labs, France)

Abstract: The objective of this session is to identify all the potential directions in optics to reduce the energy consumption of the metro/core and the data centers. This round table will include two parts: One 1hour 10 to present different directions to reduce the energy consumption of the ICT using optical technologies. 20 minutes will be dedicated for an open discussion through a round table.


11h00-11h10: “Global approach and directions for a sustainable ICT”, Dominique Chiaroni (Bell Labs, France),

Abstract: A global approach will be presented to optimise the metro/core and inter/intra data centers. The presentation will analyse the potential of optics and propose promising directions to recreate new market shares in the metro, reinforce and capitalize on the exisitng technologies for the core and propose new potential innovations for data centers.


11h10-11h25: “Providing and orchestrating flexible DataCenterNetworks (DCNs)”, Prof. Lars Dittmann (Head of communication technology section Technical University of Denmark, DTU, Denmark),

Abstract: DCNs are commonly based on a very static topology, which needs a significant degree of overprovisioning. A flexible DCN can enable a more efficient use of all the resources within the DataCenter – if deployed and orchestrated correctly. This talk will outline ideas on this, coming from the COSIGN FP7 project.

11h25-11h40: “SDN-enabled optical circuit switching for efficient and scalable datacentre networks”, Dr. Nick Parsons (Polatis Ltd, UK),

Abstract: All-optical circuit switching combined with Software Defined Network paradigms create compelling solutions to bring the fibre layer under software control and provide scalable, transparent connectivity on demand between thousands of datacentre endpoints with speed-of-light data latency.  This talk reviews recent trends and highlights developments under the FP7 COSIGN project.

11h40-11h55: “Large-scale InP switches for optical packet switching”, Dr. Ripalta Stabile (Tu/e, The Netherlands),

Abstract: High connectivity large-scale InP space and wavelength switches are demonstrated using active-passive integration. Hundreds of switching active elements and passive components are integrated within the same chip for establishing optical data connections at the packet time-scale. Performance is studied in terms of circuit level performance, data integrity and fast reconfigurability.


11h55-12h10: “Green solutions for data centers: Direct Detection versus Coherent”, Prof. Huug de Waardt, Jarek Turkiewicz and Chigo Okonkwo (Tu/e, The Netherlands),

Abstract: The growing traffic in inter/intra data centers is driving development of cost-effective, DSP-lite and hence energy efficient transmission systems. Two potential solutions exploiting pulse-amplitude modulation, few-mode transmission and O-band wavelengths demonstrate dense-wavelength-division multiplexed and coherent transmission.


12h10-12h30: Round table. Session Chairs : Dr. Thierry Klein (Bell Labs USA) & Dominique Chiaroni (Bell Labs, France)

Panelists: Prof. Lars Dittmann (DTU-FOTONIK, Denmark), Prof. Jaafar Elmirghani (University of Leeds, UK), Dr. Nick Parsons (Polatis Ldt, UK), Dr. Ripalta Stabile (Tu/e, The Netherlands), Prof. Huug de Waardt (Tu/e, The Netherlands), Dominique Chiaroni (Bell Labs, France)

Abstract: The objective of this round talbe is to raise fundamental questions concerning the impact of optics in sustainable ICT. This round table will try to draw a long term vison for a new technology developpement based on an eco-design towards a cheaper and less power consuming ICT while supporting the traffic growth predicted. In particular new business models will be discussed to reinforce the presence of optics in different network segments.

  • TPC

This workshop will be focused only on networking. So this workshop will be linked to the PHY Technical Committee for the technology part, WIN Technical Committee for the Wireless part, OPN Technical Committee for the optical networking part, and NET for the Networking part.

  • Previous Editions

No previous edition

  • Specific Promotion

The first part of the workshop will report on the results of the GreenTouch consortium where the final event will be held in New York in June 2015. This workshop will be therefore officially announced on the GreenTouch web-site for a larger visibility.