The NGMN Alliance is constituted through NGMN e. V. with its office in Frankfurt/Germany. NGMN is represented and managed by a board of directors (Board). The current Board Members and their Alternates are presented below.

Wayne Allison

Senior Director, Technology Development and Architecture, Rogers Communications

Wayne is currently the Senior Director, Technology Development and Architecture at Rogers Communications Inc. In this position he leads the Network Technology department responsible for technology development, architecture and evolution of all network technologies.  This includes; IP, GPON, DOCSIS, Core, IPRAN, RAN, in support of Data, Voice, Video services on Rogers’ Cable and Wireless networks.

Over his 30+ years at Rogers, Wayne has held a number of positions spanning from Technology through to Operations. Wayne’s end-to-end technology experience in a Cable and Wireless service provider represents a unique combination of expertise.

Konstantinos Chalkiotis

VP Access & Home Networks, Deutsche Telekom

Dr. Chalkiotis has joined Deutsche Telekom Group Technology in 2013 as Vice President in Mobile Access. His primary function was to define the strategy, architecture, innovation and blueprints for Mobile Access Networks in Deutsche Telekom Group. As of the beginning of 2016 he is also responsible for the architecture of the fixed networks within Deutsche Telekom Group Technology.
Currently he is Vice President responsible for Access and Home Networks in Strategy & Technology Innovation and working for Technology Architecture & Innovation (TAI). His primary function is to define and revise the architecture, strategy, steer the innovation and define the high level design (including the standardization) for Access and Home Networks (Fixed and Mobile) in Deutsche Telekom Group.

Sachin Chhibber

VP Spectrum & Technology Strategy, Ligado Networks

Sachin Chhibber is the Vice President of Spectrum and Technology Strategy at Ligado Networks, where he is responsible for technology development activities, spectrum strategy and technical regulatory programs including spectrum planning & engineering. Sachin has over 20 years of experience in wireless networks engineering and radio access network (RAN) design. Work experience includes direct work on deployment of numerous wireless networks, extensive review of new network technologies and protocols, technology development, technical due diligence, spectrum valuation, spectrum auction and management of key coordination discussions with both private and government entities.

Javan Erfanian

Distinguished Member of Technical Staff,
Bell Canada

In his role within Wireless Network at Bell Canada, Javan primes the wireless technology strategic direction, while working with the global industry, various forums, and the research community. In particular, he has been contributing to the work programs through NGMN, most recently the 5G initiative, for which he has been the Co-Lead, and the 5G White Paper Chief Editor. He also led the work on NGMN Verticals requirements, and is currently Vice Chair of the NGMN 5G Board Committee. Javan has taught many academic programs, particularly at University of Toronto, with research publications and many citations. He has been an IEEE Communications Society Distinguished Speaker for many years, and a recipient of the IEEE Millennium Medal. Javan is a Steering Board member of the Wireless World Research Forum (WWRF).

Ulf Ewaldsson

SVP, Technology Transformation, T-Mobile US


Ibrahim Gedeon

Chief Technology Officer, TELUS

Dr. Ibrahim Gedeon is responsible for technology strategy, service and network architecture, service delivery and operational support systems, as well as service and network convergence, enterprise applications and network infrastructure strategies and evolution. Under his leadership TELUS deployed the largest LTE cellular network to Canadians to meet the exponential data traffic growth, offering faster speeds to more than two-thirds of Canadians. Combined with 97% HSPA+ coverage, the TELUS wireless broadband network is one of the best in the world. In Q4 of 2012, TELUS successfully rolled out co-channel LTE small cells, bringing technology innovation to the next level. Ibrahim was recently the General Chair for the 2012 IEEE International Conference on Communications in Ottawa and also serves on the board of a number of industry associations, including the Washington, DC based Alliance for Telecommunications Industry Solutions (ATIS), the Canadian ICT Advisory Board, Department of Foreign Affairs and International Trade, and the University of Southern California’s Marshall School of Business based Institute for Communication Technology Management (CTM). A native of Lebanon, he has a Bachelor's degree in electrical engineering from the American University of Beirut and a Masters' in Electronics Engineering from Carleton University. In 2010, he received a Honourary Doctor of Laws degree from the University of British Columbia.

Kevin Holley

Director of Technology Standards and Ecosystems, BT

Kevin has been working in the telecommunications industry for over 30 years. He is currently Technology Standards and Ecosystems Director for BT. He is responsible for all BT's engagement with standards and industry associations and has a strong focus on the developing 5G ecosystem. He was a member of the team who developed the NGMN 5G whitepaper in 2014-2015 and helped identify the key features which are now being implemented to differentiate 5G from earlier technology. He has been engaged in 3GPP since the first meeting in 1998 where he led the original Terminal Services and Capabilities group. In his early career he drove the completion of the GSM SMS standard and pioneered the integration of SMS with the Internet after services were launched in the early 1990s. In the first decade of 2000 he was a key player in the Open Mobile Alliance, driving the requirements and later the Converged Messaging activity. He has been a Board member of ETSI since 2014.

Joachim Horn

Chief Technology and Information Advisor (CTIA), Smart Communications


Xinli Hou

Program Director, China Mobile Research Institute

Xinli Hou is a program Director at China Mobile Research Institute driving wireless network technologies development and their applications in vertical industries, as well as participating activities in industrial forums and standardization development organizations. Xinli has more than 20 years of experience in wireless industry in technology areas of 2G/3G/4G/5G, Telco cloud, SDN/NFV, analytics, orchestration and automation as well as IoT, served various technology and R&D management functions in Ericsson from 1995 to 2018 in Europe, Asia and North America.

Luke Ibbetson

Group R&D Director, Vodafone

Luke has been with Vodafone since 1996 and is currently heading the Vodafone Group Research and Development organisation. Luke is responsible for all aspects of network research including Vodafone’s participation in international standards, pilots and commercial trials of emerging technologies, evolution of mobile security and defining the architectural blueprint for Vodafone’s future networks. Luke led Vodafone's exploration of alternative access solutions and directly shaped Vodafone's 4G strategy.Prior to joining Vodafone Luke worked as a Research Fellow at the University of Leeds for over six years, undertaking contract research for companies including BT Laboratories and Cellnet (now Telefonica O2). Luke was responsible for developing one of the earliest GSM simulation capabilities and has a long term passion for all things wireless. Luke graduated from the University of Leeds with a first degree in Electronic and Electrical Engineering and was awarded an MSc by Research in 1992. Luke holds Chartered Engineer status with the Institute of Engineering Technology. Luke is married and has two children.

Mikio Iwamura

Executive Research Engineer and Senior Manager of 5G Laboratory and RAN Development Dept., NTT DOCOMO

Mikio Iwamura is an Executive Research Engineer and Senior Manager of 5G Laboratory and RAN Development Dept., respectively, at NTT DOCOMO. He has 20 years of experience in radio access network R&D and standardisation, and is currently responsible for RAN and C-V2X standardisation, and demonstrating 5G applications. He obtained his Ph.D. at King’s College London, and MSc and BSc at Science University of Tokyo, graduating top honours.

Emmanuel Lartey



YongGyoo Lee

SVP, Head of 5G Business Unit, KT Corporation

YongGyoo Lee is Senior Vice President, Head of 5G Business Unit in KT. He is in charge of the development of KT's 5G pre-commercial service for 2018 Winter Olympic Games and 5G fully commercial services. He has successfully coordinated KT 5G activities since January 2015.

Previously, he served in Network Strategy Business Unit of KT. In this role he was in charge of developing network strategy which includes formation of future-proof network architecture, roadmap for next-generation evolution of KT's network, spectrum strategy as well as standardisation.

He made the critical contribution when KT won the "Outstanding LTE Contribution and Outstanding Overall Mobile Technology-The CTO’s choice" at GSMA MWC GLOMO Award 2014, held in Barcelona and "Most Significant Development for Commercial LTE Network by an Operator" at LTE Award 2012.

Kuo-feng Lin

Senior Executive Vice President and CTO, Chunghwa Telecom

Mr. Kuo-feng Lin currently serves as the Senior Executive Vice President and CTO at Chunghwa Telecom Co., Ltd. He previously served as the Vice President and President of Mobile Business Group from October 2009 to November 2016, and as the Manager of Taipei Branch, Mobile Business Group from April 2006 to October 2009. Mr. Lin graduated from the Taipei Institute of Technology and majored at Electronic Engineering. After a lengthy career within the Mobile Business Group, he is now responsible for the formulation, strategy and promotion of Chunghwa Telecom's communication business. Chunghwa Telecom has always fulfilled the role of telecommunication innovation and leadership within Taiwan, and through his experience and strong leadership, Chunghwa Telecom was the first to launch a commercial LTE network in Taiwan on May 29, 2014, bringing Taiwan into a new generation of high speed mobile communications.

Erik Lindkvist



Mark Lipford

Director Global Standards and Ecosystem Development, Sprint

Mr. Lipford serves as the Director Global Standards and Ecosystem Development has over 25-years of experience in the telecommunications industry with 25+ years in the wireless industry.  His is responsible for working with Sprint’s Technology Development, Corporate Strategy, Product Development and Network Development teams in defining Sprint’s strategy and direction and in representing Sprint’s strategies and requirements into the industry organizations and in building strategic relationship to help drive technology ecosystems supporting these initiatives.  Mr. Lipford currently serves on the Board of the Small Cell Forum, the GSMA North American CTO group, and the GSMA PSMC committee, and TIA TR45 vice chair.  He has previously held positions as Open Mobile Alliance (OMA) Technical Plenary vice chair, OMA Broadcast working group vice chair, and as a member of the OMA Board.  He has also served on the WiMAX Board and held leadership positions in 3GPP2.  Previous to his work in Global Standards, Mr. Lipford has held positions in Product Development, Technology Planning, Network Engineering, and Network operations for both Sprint and BellSouth.

Gordon Mansfield

Vice President – RAN & Device Design, AT&T


Gordon Mansfield was appointed Vice President – RAN & Device Design at AT&T in April 2015.  In this role, Gordon leads the teams who define and validate functionality for use over the air interface within AT&T wireless network.  He has responsibility for the Radio Access Network, Subscriber Product Engineering and Measurement platforms. Prior to Gordon’s current role, he has held multiple leadership roles at AT&T since joining the company in July 2006.  He has had responsibility for getting AT&Ts small cell efforts started, defining the Radio Access Network (RAN) Strategy, Software/Hardware roadmaps and testing of new RAN products/features for use in AT&T’s network. Gordon is a past Chairman of the Small Cell Forum having led the organization from September 2012 until September 2014.  In this role, Gordon oversaw the continued evolution of the Forum which led to membership growth and broad engagement within the international mobile telecommunications industry. Gordon has over 25 years of experience in the communications industry and has served in a number of leadership roles at AT&T, Siemens Communications and the United States Air Force.

Ersilia Manzo



Ersilia Manzo joined the VEON leadership team as its Global Director of Quality and Best Practice in February 2015. She is responsible for the QoS for its 250mln customers who are distributed across 11 countries in 3 continents and smart operations transformation.

Before joining Veon, she held several Technology leadership roles at Telecom Italia Group. In her 18 years with TIM she covered all aspects of network design, planning, governance and operation from a field, regional and HQ perspective. During her time with TIM, the company had embarked on a global expansion, this resulted in several overseas assignments which included a greenfield network design and deployment in Turkey, and a regional planning and performance leadership role in South America HQ (Brazil, Paraguay, Argentina)

She has also worked for Ericsson Italy and Sweden.

Ersilia has an MSc summa cum laude in Electronic Engineering from the University of Naples Federico II, in Italy.

Jong Han Park

Senior Manager, SK Telecom

Jong Han Park joined SK Telecom recently in 2014. Dr. Park Jong-Han is currently focusing on NFV, SDN, and Orchestration in the 5G mobile network context. Prior to joining SK Telecom, he spent a few years at AT&T Labs as a system architect where he worked on various network topics including BGP and network traffic data monitoring, network performance analysis, NFV and SDN in the context of efficient and cost effective CDN architecture. Dr. Park received his B.S. and M.S. degree in computer science and networked systems from the University of California, San Diego, in 2000 and the University of California, Irvine, in 2005, respectively. He finished his Ph.D. in computer science from the University of California at Los Angeles in 2011.

Giovanni Romano

Radio Access Standards Coordinator, Telecom Italia

Giovanni Romano is currently coordinating Telecom Italia activities on technical standards related to radio access and spectrum. The role implies the identification of requirements to be transferred to standardisation fora such as 3GPP to define new technical solutions for the radio interfaces of GSM, UMTS, LTE, 5G/IMT2020 and their evolutions, and the evaluation of technical solutions under development.

In March 2015, Giovanni was re-elected Vice-Chairman of 3GPP Technical Specification Group RAN for the period 2015-2017, following a first term period (2013-2015).

Since 1996 Giovanni has been active in several international standardisation fora and he is currently attending 3GPP RAN and NGMN. Giovanni also coordinates Telecom Italia’s activities in ITU-R, GCF and groups dealing with radio aspects in 3GPP and ETSI.

Until 2005 Giovanni was project leader of several activities within the R&D center of Telecom Italia, including UMTS performance evaluation, quality of service verification, standardisation, field trials and testing.

Nick Sampson

Director, Wireless Access and Core Network Standardisation, Orange

Nick is responsible for wireless access and core network standardisation activities in Orange, encompassing activities across organisations such as 3GPP, ETSI, GSMA, IEEE, Wi-Fi Alliance and NGMN. He has a degree in Electrical and Electronic Engineering, and over 25 years’ experience in the telecommunications industry, initially with Vodafone and then Orange.  He has represented Orange in standardisation organisations at national and international level for over 20 years, including ETSI, 3GPP, NGMN and GSMA, and is currently vice-chairman of the ETSI Board.

Narothum Saxena

Vice President, Advanced Technology and Systems Planning, US Cellular

Narothum is responsible for the evaluation, architecture and integration of new and existing technologies, products, and services. Narothum has a master's degree in electrical engineering and computer science from the University of Illinois at Chicago and a bachelor's degree in electronics and communication engineering from Osmania University (MVSR) in India. He also completed an executive management program from the University of Chicago. He holds several patents.

Kurt Schlager

A1 group


Si Cheng Choon

Vice President (Digital Platforms / Technology, Strategy & Transformation), Singtel

Cheng Choon joined Singapore Telecommunications Limited (Singtel) in 1991 and played a leading role in the planning, delivery and operations of the mobile networks in Singapore and Australia (Optus). With experience accumulated since the days of analogy (1G) mobile networks, Cheng Choon has vast experience in managing the change as technology evolves, he is now leading the network transformation and digitalisation of Singtel in the new 5G era. 

Cheng Choon has also participated in several overseas projects and headed different engineering divisions within Singtel over different periods of time.

Cheng Choon holds a Bachelor degree in Engineering (Electrical and Electronics) from the National University of Singapore.

Eric Smeitink

Senior Manager Technology, KPN

Eric is senior manager technology in KPN’s CTO Office. Eric started his career at KPN in 1992 with research and development of software tools for the planning and optimization of broadband and mobile networks. Since then Eric has held various leadership positions in corporate strategy, innovation and enterprise architecture. Prior to his current role, Eric headed the KPN team in the multi-band mobile frequency auction in The Netherlands in 2012. Eric holds a MSc in Applied mathematics from Twente University and a Ph.D. in Econometrics from the Free University Amsterdam.

Arnaud Vamparys

Senior VP Seamless Wireless Access, Orange

Arnaud Vamparys has been working three years as “Seamless Wireless Access” Group Strategic Program Director for Orange. Inside Conquest 2015, the strategic program objective is to become number one in mobile internet customer experience for Europe and AMEA. His previous position was Orange Labs Mass Market VP and in charge of the group historical R&D site of Issy-Les-Moulineaux – a position he took up in 2007.

Arnaud Vamparys, 43 years old, a graduate of the École Polytechnique and the École Nationale Supérieure des Télécommunications (X-Télécom), joined the Group in 1995 to work for the new mobile operator Itineris. He then worked in a number of positions in France, in the Netherlands and in Spain, within the mobile, internet and business markets.
As chief of engineering, he built a new mobile network in the Netherlands Dutchtone between 1998 and 2000. From 2000 to 2003, he was CTIO for Spanish ISP Wanadoo which became number two on his market after Terra (Telefonica). From 2003 to 2007, he was the VP Technology for Orange Business Services (France Telecom, Transpac and Equant) creating the Orange Business Livebox a new multimedia router product line used today by more than 70% of the French business sites.

Nelson Vanegas

Group Director Innovation, VEON

Seasoned mobile networks engineering and operations leader. He lead the design, operated and optimized/modernized networks in America and Europe. He evolved with mainstream operators and vendors in horizontal and vertical markets – public safety, transportation and enterprise. Nelson co-launched the consultancy for an American company in Europe in the engineering services area.

Henry Wong

Head of Strategic Wireless Technology and Core Networks, Hongkong Telecom

Dr. Wong is responsible for the strategic planning of mobile broadband development, network architecture and evolution roadmap to 5G, spectrum planning and mobile/WiFi integration. Dr. Wong is the co-Chairman of the Network Steering Committee in GBL (a JV company with Hutchison) managing the technical and business plan of LTE network sharing. With more than 25 years of experience, Dr. Wong has held various managerial positions at Hutchison and SUNDAY overseeing the most exciting development from analogue AMPS/TACS in 80’s to LTE as of today. Dr. Wong holds a BSc (Hons) in Computer Engineering from the University of Manchester in UK, PhD in Mobile Radio Telecommunications from the University of Southampton, and MBA from the University of Hull.

Gülay Yardim

Head of 5G Research-Development and Radio Network, Turkcell

Gulay Yardim is the Head of 5G Research-Development and Radio Network. She has more than 20 years of experience in mobile telecommunications with expertise about mainly radio and transport networks. She joined Turkcell in 2009 and responsible for radio network investments, products and architecture including integration of new technologies. She is also in charge of 5G Research and Development projects at Turkcell Technology and standardization activities of Turkcell at NGMN, ITU-T, 3GPP and GSMA. Before Turkcell, she has held various positions at Siemens, Ericsson, Nokia, Tubitak Research Institute and Middle East Technical University. She holds M.Sc. and B.Sc. degrees in Electrical and Electronics Engineering, Middle East Technical University (METU), Ankara.