ETSI workshop on Reconfigurable Radio Systems - Status and novel Standards

ETSI is pleased to invite you to a workshop on reconfigurable radio systems on 3-4 December 2014, Sophia Antipolis, France. During the workshop, you will also have the opportunity to visit some demonstrations.

Introduction

Reconfigurable Radio Systems (RRS) are on the verge to become key drivers for the evolution of wireless communications and to bring substantial benefits not only to the traditional commercial domain but also to civil security and military domains: from reconfigurable flexible and cost effective architectures for wireless devices and a better utilization of the radio frequency spectrum (for instance shared use of spectrum resources), to the exploitation of synergies among different domains such as military, civil security and commercial. A close interaction between ETSI (e.g., TC RRS), the European Commission (e.g., EC Mandate M/512) and CEPT (e.g., ECC WG FM) ensures a maximum reduction of the Time-to-Market and the readiness of products from a technical and regulation perspective for the single European market. In this context, a main focus lies on enabling technologies, such as flexible Mobile Device platforms, Context information acquisition and management, etc. Furthermore, next generation reconfigurable radio technologies are expected to facilitate the access to new frequency bands: ETSI has indeed been interacting with CEPT in order to enable the introduction of Licensed Shared Access (LSA) technology in Europe and currently develops a series of related standards. In this regard, while the regulatory framework is about to be finalized the related ETSI standards on Licensed Shared Access are expected to bring substantial value to selected countries in the European market, where a 100 MHz frequency band in 2.3-2.4 GHz will be made available to cellular stakeholders on a shared basis. Moreover, new standards related to the so-called TV White Spaces will furthermore increase the available resources for commercial communications, including specific definitions of – distributed or centralized - coexistence mechanisms between incumbents and secondary users as well as between the secondary users themselves. The activities on flexible Mobile Device platforms are closely linked to new Articles in the novel Radio Equipment Directive (RED) which repeals the well known R&TTE Directive. ETSI is currently developing standards addressing the underlying technical solutions, new mechanisms for Declaration of Conformity and other certification related aspects.

Although there are potentially a number of synergies between commercial, civil security and military domain, there are still lots of discussions regarding what is really feasible and what is not and ETSI (TC RRS) is currently investigating (under EC mandate M/512) how reconfigurable radio systems can help to achieve those same synergies.

Reconfigurable Radio technologies are also under investigation in the military domain where demand for military communications is expected to rise and therefore there is the need to maximise the use of the radio spectrum. In this regard cognitive radio is under investigation in NATO (STO) and the EDA (e.g. with the project CORASMA). Cognitive radio is here expected to be complementary to SDR, which is an already well known concept.

Objectives of this workshop

  1. To report on the current and future standardization activities related to reconfigurable radio systems
  2. To report on the status of the EC Mandate on Reconfigurable Radio Systems (M/512)
  3. To discuss about the new Radio Equipment Directive (RED) with respect to reconfigurable radio systems
  4. To discuss about present and future development of Licensed Shared Access (LSA)
  5. To discuss about the potentialities of White Spaces and the latest developments for their management
  6. To discuss about regulatory matters as well as certification aspects related to the RED Directive for the placing on the market of reconfigurable mobile devices and reconfigurable radio systems in general
  7. To discuss the possible usage of reconfigurable radio systems in the defence sector
  8. To discuss about the potentialities of reconfigurable radio systems for the achievement of synergies between commercial, civil security and defence domain.

Target audience

Manufacturers:

  • NW Infrastructure Manufacturers
  • Mobile Device (Handset) Manufacturers
  • Chipset Manufacturers
  • M2M Communication Component Manufacturers

Administrations/Regulators;
Network Operators;
Defence and Civil Security stakeholders;
Representatives of related standards organisations;
Participants of related research projects;
Certification and Test Houses;
RadioApp 3rd party Software Development Community

03 Dec

08:30 Registration
09:00

ETSI DG’s opening remarks
Luis Jorge Romero Saro, ETSI Director General

09:15

Standardisation for Reconfigurable Radio Systems: where we are.
Markus Mueck (INTEL Germany, ETSI TC RRS Chairman)

09:45

The new RED Directive and Reconfigurable Radio Systems
Javier Arregui Alvarez (European Commission DG ENTR)

10:30

Reconfigurable Radio Systems: NRA’s needs
Paul Bender (Ministry of Economics and Technology, Germany)

11:15 Coffee & Networking Break
11:45

Reconfiguring radio communication for defence users: improving interoperability and functionality in multi-national environments
Michael Street (Innovation Manager, NATO Communication and Information Agency)

12:30 Lunch & Networking Break
14:00

Reconfigurable Radio Systems potentialities for the civil security domain.
Philippe Mège (Airbus Defense and Space, France)

14:45

Developments of FCC/NTIA and SCA Matters
Ruediger Leschhorn (Rohde & Schwarz, Germany)

15:30 Coffee & Networking Break
16:00

Reconfigurable Mobile Devices and Certification in the context of the new RED Directive
Markus Mueck (INTEL Germany, ETSI TC RRS Chairman)

16:45 wrap-up session –day 1
17:30 Networking Cocktail

04 Dec

09:00

Shared Access to Spectrum in Wireless Networks: Challenges and Opportunities
Jamshid Khun-Jush (Qualcomm Germany)

09:45 TV White Spaces and spectrum sharing
Cesar Gutierrez (OFCOM UK)
10:30

Tutorial 1 - Reconfigurable Mobile Devices Architecture and Interfaces and related Declaration of Conformity
Seungwon Choi (Hanyang University, Korea)

11:00 Coffee & Networking Break
11:30

Tutorial 2- White Spaces State-of-the-Art, System Design and Database Management
Pekka Ojanen (Interdigital, Canada) and Naotaka Sato (Sony, Japan)

12:00

Tutorial 3 – Licensed Shared Access: Status and System Design
Luis Lopes (Qualcomm UK) and Michael Gundlach (Nokia Networks, Germany)

12:30 Lunch & Networking Break
14:00 Conclusions and Final Discussion: next steps
15:30 Closure of the workshop

Demonstrations

Company Presenter Presentation Title
B-COM Mr. Christophe Moy Machine learning proof-of-concept for Opportunistic Spectrum Access
Eurecom Mr. Florian Kaltenberger OpenAirInterface 4G: an open LTE network in a PC
IMDEA Networks Institute Mr. Vincenzo Mancuso A prototyping methodology for SDN-controlled LTE using SDR
iMinds Mr. Peter De Valck

Cross-technology TDMA in the 2.4 GHz ISM band using programmable MAC solutions on COTS hardware

Instituco de Telecomunicacoes Mr. Paulo Marques Combination of TV White Spaces database access with infrastructure sensing
Joint Research Centre European Commission Mr. Pravir Chawdhry LSA Architecture Demonstrator at JRC
Jožef Stefan Institute Ljubljana, Slovenia Mr. Tomaž Šolc SNE-ESHTER: A low-cost, compact receiver for advanced spectrum sensing in TV White Spaces
National Institute of Information and Communications Technology (NICT) Mr. Tran Ha-Nguyen TV White Space Communication System: NICT’s Device and Database Technologies and Prototypes
RED Technologies Mr. Pierre-Jean Muller LSA test bed in the 2300-2400MHz band
SINTEF ICT
CTTC (Centre Tecnològic Telecomunicacions Catalunya)
Mr. Vidar Ringset
Dr. Oriol Font-Bach
EMPhAtiC
Sony Europe Mr. Chen Sun Demonstration of geolocation database and spectrum coordinator as specified in TS 103 143 and TS 103 145
VTT Technical Research of Finland (Coordinator of Finnish LSA group) Mr. Marco Palola Finnish Licensed Shared Access (LSA) trial using TD-LTE in 2.3 GHz band

Biographies

Seungwon Choi, Hanyang University, Korea
Seungwon Choi received his Ph D from Syracuse University, Syracuse, New York, USA in 1988. He was an assistance professor at Syracuse University between 1988 and 1989. He was with Communications Research Lab, Tokyo, Japan, between 1990 and 1992. He joined Hanyang University, Seoul, Korea, in 1992. He is currently a professor in the Dept of Electrical and Computer Engr of Hanyang University. Dr. Choi has been directing the HY-MC Research Center, which was established by the Ministry of ICT, Korea in 2012. His main research fields include SDR/CR, Multiple Antenna Technologies, and applications of those technologies to Mobile communication systems.

devalck

Peter De Valck, iMinds
Peter De Valck is a PhD researcher at the IBCN research group of Ghent University promoted by prof. I. Moerman. He received his masters degree in electronic engineering in 2012 from the same university. Since then his research mainly focuses on the reconfigurability of wireless devices, ranging from COTS hardware to fully flexible SDR platforms.

furichiSho FURUICHI, Sony Corporation, Japan
Sho FURUICHI (Sho.Furuichi at jp.sony.com) received B.E. and M.E. degree in electrical and electronic engineering from Tokyo University of Agriculture and Technology, Japan, in 2010 and 2012, respectively. In 2012, He joined Sony Corporation, Japan. He has been engaged in development of 4G cellular technologies and dynamic spectrum access technologies in TV white space. His research interests include 4G cellular technologies and cognitive radio systems.

gundlachMichael Gundlach, Senior Standardization Specialist, Nokia Networks
Michael works for NOKIA Networks as senior standardization specialist. In this role, he is active in ETSI TC RRS, mainly with the technical scope Licensed Shared Access (LSA), and in the European Research Project CRS-i. The aim of CRS-i is to bring research from FP7 projects into standardization. As a member of this project, his tasks include liaisons to several standardization projects as well as presentations on conferences and workshops. In this context, he is specifically responsible for activities in ETSI related to LSA and in 3GPP related to Proximity Services / Device to Device Communication (D2D).
Until December 2013, he was the chair of IEEE DySPAN-SC Working Group 1900.6 and the secretary of Working Group 1900.1. The related specifications are about definitions and concepts for cognitive radio and the interfaces of sensors and data bases. Prior to that, he was an active member of IEEE 802.16 and the WiMAX Forum.
He has also experience in other standardization groups such as ANSI T1P1, TIA TR46 and JTC (air) regarding PCS standardization in the early nineties of the last century, including editing relevant security and smart card specifications for the related US standards. In ETSI NA 6 (Intelligent Networks) he chaired the security working group, the smart card group (acting), and the specialist task forces for CTM security and (in ETSI NA 7) for UPT security.
Michael is author of several scientific papers and presentations, and he has done many inventions leading to patents (Inventor of the year 1997 in the Siemens Public Networks Group). He also supervised students for their master and PhD theses.
Michael received a Doctorate in Science (Mathematics and Physics) from the Johannes Gutenberg University in Mainz, Germany, with a thesis on Error-Correcting Codes. He worked as graduate assistant at the University of Mainz, and he held lectures in computer science at the University of Applied Sciences in Frankfurt (Main).

gutierrezCesar Gutierrez, Ofcom
Cesar is a senior policy manager with Ofcom, the telecoms and media regulator in the UK. He leads on several aspects of the implementation of TV White Spaces. In particular, he is responsible for the authorisation of geolocation databases and the White Space Devices (WSDs). Cesar was a major contributor to the Harmonised Standard for WSD in ETSI, and is currently leading the work in ECC on a regulatory framework for TV White Spaces using geo-location databases. In his time at Ofcom he has also been involved in several spectrum and consumer policy projects such as a long term spectrum strategy assessment and the evaluation of mobile coverage. Before joining Ofcom, Cesar was with Telefonica and ETSI, where he was technical officer for 3GPP TSG RAN and several other ETSI groups. Cesar has a degree in Telecommunications Engineering from the Universidad Politécnica de Madrid, and a degree in Business Administration from the University of Oxford.

IshizuDr. Kentaro Ishizu, NICT
Dr. Kentaro Ishizu received Ph.D degree in computer science in 2005 from Kyushu university, Japan. Since then, Dr. Ishizu has been working with NICT of Japan for ten years. He has been dedicated to R&D on heterogeneous wireless networks, cognitive radio systems, and TV white space systems as well as their field trials including the U.K. Ofcom White Space Pilot. The developed systems were sent to the disaster area of the great earthquake happened in the eastern Japan on March 11, 2011 and contributed to recover from the damage of network access environment for more than one year. He also has been involved with many international standardization activities including IEEE 1900.4 and 802.21. Dr. Ishizu is now managing the white space team of NICT.

KaltenbergerFlorian Kaltenberger, EURECOM
Florian Kaltenberger is an Assistant Professor in Mobile Communications at EURECOM and part of the team managing the real-time open-source test platform OpenAirInterface.org for experimentation in LTE systems. He received his MS and his PhD both in Technical Mathematics from the Vienna University of Technology in 2002 and 2007, respectively. His research interests include signal processing for wireless communications, MIMO communication systems, receiver design and implementation, MIMO channel modeling and simulation, and hardware implementation issues.

KhunJush

Dr. Jamshid Khun-Jush, Qualcomm, Senior Director for Technical Standards
Jamshid Khun-Jush received his BS, Dipl.-Ing. and Dr.-Ing. Degrees in electrical engineering. From 1995 to 2003, he was with Ericsson Research, Corporate Unit in Nuremberg, Germany leading physical layer research and system engineering work related to broadband wireless local area networks and acted as the company’s lead for standardization activities on broadband wireless networks in relevant standards bodies and fora such as ETSI TC BRAN and IEEE 802.11/16. He chaired the physical layer specification work for WLAN standardization within the ETSI BRAN and was the co-ordinator of all working groups working on this standard. In addition, he chaired TC BRAN from 1999 to 2002. Since July 2003 he has been with Qualcomm in Nuremberg, Germany working in 3GPP and ETSI standardization as well as technical regulation areas. As a Senior Director for Technical Standards, he is managing Qualcomm’s overall ETSI activities and is technical lead for Qualcomm’s global Spectrum Engineering work in international and regional organizations (CEPT ECC, ITU-R, Asia-Pacific Wireless Group, FCC, etc.). He is currently an ETSI Board member and has served during the last 20 years as Technical Program Committee member of several international conferences, has given lectures or organized panels at these conferences.

LeschhornDr. Ruediger Leschhorn, Rohde & Schwarz GmbH & Co. KG
Dr. Ruediger Leschhorn received the diploma degree in electrical engineering in 1980 from the Technical University of Munich, Germany. In the same year he joined Siemens A.G., working on the development of Integrated Microwave Circuits. In 1982, he joined the University of the German Armed Forces as a Scientific Assistant, working towards his Doctoral Degree in the field of microwave propagation and measurement of material constants. The Doctoral Degree was awarded in 1987. Then he joined the company Rohde & Schwarz, working as a Systems Engineer in the field of Radio Monitoring and Radio Location. Since 1992 he is working in Radio Communications and held various engineering and management positions in the fields of Systems Engineering, Strategic Marketing, Studies and Technology Review. Currently he is Director of Studies in the Radio Communication Systems Division of Rohde & Schwarz. Ruediger Leschhorn is active in various working groups and forums, among others in the Wireless Innovation Forum (previously Software Defined Radio Forum), where he served as the Vice Chair of the Forum for many years.

Luis Lopes- Senior Staff Engineer, Qualcomm
Luis joined Qualcomm in May 2013, and has some 30 years’ experience in mobile telecommunications. Prior to joining Qualcomm, Luis held various positions at Motorola, Nokia Siemens Networks and in academia. He is currently engaged in a range of standards activities in both 3GPP and ETSI, and is the rapporteur in ETSI for the Work Item on “System Architecture and High Level Procedures for operation of LSA in the 2300 MHz-2400 MHz band”. Luis is the author of a number of scientific publications and granted patents, and holds a PhD in Electronic Engineering from the University of Leeds, and an MBA from the Open University.

mancusoDr. Vincenzo Mancuso, IMDEA Networks Institute
Dr. Vincenzo Mancuso obtained his master degree in Electronics from University of Palermo, Italy, in 2001, and a PhD in Electronics, Computer Science and Telecommunications from the same University in 2005. After the PhD, he has collaborated with University of Roma ''Tor Vergata'' and University of Palermo. He has been visiting scholar at the ECE Department of Rice University, Houston, Texas, and postdoc in the MAESTRO team at INRIA Sophia Antipolis, France. Since September 2010, Vincenzo is with IMDEA Networks Institute, working as research assistant professor on analytical and experimental projects focusing on wireless networks (802.11, 802.16/LTE, including SDN and D2D.

marquesPaulo Marques, Instituto de Telecomunicacoes
Paulo Marques received his Ph.D from the University of Aveiro (Portugal) in 2006. He is Senior Researcher at the Instituto de Telecomunicacoes. He was the scientific coordinator of the FP7 COGEU project (Cognitive radio systems for an efficient use of TV white spaces in the European context) during 2010-2012 where he lead the first TV white spaces trial in Germany. Currently he is the scientific coordinator of the FP7 CRS-i project (Cognitive Radio Standardization Initiative). As part of this work he has taken up Chairmanship of the European Commission’s “Radio Access and Spectrum-RAS” cluster projects.

MegePhilippe Mège, Airbus Defense and Space, France
Philippe Mège was graduated from Telecom Paris Tech (France) in 1980. From 1981 to 1988 he was at T.R.T. (subsidiary of Philips), working on military radiocommunications. Since 1988, he is with Matra Communication (now AIRBUS Defence and Space). Philippe contributed to the development of GSM Base Stations from 1988 to 1994 and is working in the field of Professional Mobile Radio (PMR) since 1990 with TETRAPOL technology. He is in charge of Signal Processing and Low Layers team since 1990 for all mobile radio technologies for Infrastructure and for terminals. Since 2006, Philippe is in charge of DSP SW activities in PMR field for infrastructure and terminals for TETRA, TETRAPOL, P25 and broadband technologies, with teams in France and in Finland. He has been involved in standardization in TC ERM at ETSI (former chairman of ERM TG 32 and TG 33). He is currently involved in ETSI TC RRS. Philippe Mègeis also involved in frequency regulation at CEPT/ECC in working group FM49 on Public Protection and Disaster Relief (PPDR).

moyChristophe Moy, B-COM
Christophe MOY obtained the INSA engineering, M.Sc. and Ph.D. degrees in Electronics in 1995 and 1999. He then worked 6 years at Mitsubishi Electric European research lab in digital communications, where he studied Software Radio systems and concepts. He joined SUPELEC in 2005 and he is now a professor in the Rennes campus of SUPELEC. His research activities focus on software radio, cognitive radio and green radio in the SCEE team of Communications Department of the IETR (UMR 6164 of CNRS). He is the head of the Telecommunication Department of IETR. He worked and is still working in many collaborative projects at both European and French levels. He is working part-time for B-COM as an expert researcher to participate at ETSI RRS standardization.

ojanenPekka Ojanen, Interdigital, Canada
Mr Pekka Ojanen has worked as a consultant for InterDigital since 2012.
His latest focus is on the technical solutions, standardization and regulation of dynamic and shared use of frequency spectrum, Licensed Shared Access (LSA), Reconfigurable Radio Systems (RRS), Cognitive Radio Systems (CRS) and use of TV White Spaces (TV WS).
Over the years he has held various expert and managerial positions in the area of radio- and mobile communications related to research, industry collaboration and technical regulation, including frequency spectrum issues.

RingsetVidar Ringset, SINTEF ICT
Vidar Ringset (M. Sc in Electrical Engineering at NTNU Trondheim) has worked at SINTEF in Trondheim since 1983 as Research Scientist, since 1995 as Senior Scientist and since 1997 as Chief Scientist. He has worked with design, simulation and implementation of different kind of communication systems such as radio relay, satellite, power cable and various OFDM systems. From 1991 to 1997 he was working on projects related to standardization and implementation of DVB-T with emphasis on mobile reception. From 2001 to 2003 he has been responsible for design of an OFDM system used in a military surveillance system. Among the most recent activities are design and implementation of a high rate digital satellite modem, implementation of filterbank OFDM demonstrators in the FP7 projects PHYDYAS and EMPHATIC and propagation studies and measurement campaigns for communication to cars in the 5.9 GHz band.

satoNaotaka Sato, Sony Europe Limited
Naotaka SATO (NaotakaA.Sato at jp.sony.com) received B.E. and M.E. degree in electrical engineering from Tokyo University of Science, Japan, in 1991 and 1993. He has been engaged in development of CDMA cellular phone and research and development of RF systems for 3G cellular phone system in Sony Corporation, Tokyo, Japan (1993-1995 & 1999-2001), Sony Electronics, Inc., San Diego California, USA (1995-1999) and Sony Ericsson Mobile Communications Japan, Inc., Tokyo, Japan (2001-2005). Since April 2005, he has joined Sony Corporation, Tokyo, Japan, as a senior researcher working on cognitive radio systems and 4G cellular technologies. His research interests include dynamic spectrum access and RF system architecture. He has been contributing to 3GPP RAN1, IEEE 1900.6 standard and IEEE 802.19.1 standard. He is a delegate of Sony Europe Limited to ETSI TC RRS and rapporteur for the interface between SC and CRS in coordinated use of TV White Space (EN 303 387-1).

solcTomaž Šolc, Jožef Stefan Institute Ljubljana, Slovenia
Tomaž Šolc studied electronics at the Faculty of Electrical Engineering, University of Ljubljana and received B.Sc. in 2007. He joined the Department of Communication Systems at the Jožef Stefan Institute in 2011 as a senior research assistant. He works on several projects involving hardware design and embedded software development as part of the Laboratory for Wireless Sensor Networks. His research work is mainly oriented in the field of spectrum sensing and cognitive radio technologies.

Dr Michael Street, Principal Scientist – Communication Systems
Chief Technology Office
NATO Consultation, Command and Control Agency
Michael Street began work on software defined radio in 1992 as part of research funded by the UK MoD. This work resulted in a fledgling software defined radio which was used to test new protocols for beyond line of sight air-ground communications, with the radio (but not the developer) being flown around the world during long range trials in 1995.
After several years in academe, government and industry, Michael joined NC3A in 1999 to investigate the military use of commercial radio technologies such as GSM and TETRA. During this time he introduced secure GSM to NATO operations (in SFOR, KFOR and ISAF) and introduced GSM operators to the problems of military security. This work led on to the multi-national NATO secure communication interoperability protocol (SCIP) programme, providing NATOs future, network-agnostic, secure voice equipment. Since 2005 he has co-chaired the SCIP test and integration working group and has established the multi-national SCIP test facility at NC3A, which hosts its first formal tests this month.
Michael has led work at NC3A to investigate and exploit SDR technology within NATO; developing the NATO tactical wireless architecture, producing SCA-structured versions of current NATO radio standards and exploiting commercial SDR technology to support the development of the NATO future tactical waveform. He supports the NATO HQ C3 Staff on many aspects of wireless technology.
In 2008 Michael joined the Chief Technology Office at NC3A, with responsibility for communication systems. The CTO ensures technical coherence of NATO C3 systems throughout their development, validation, verification and procurement by NC3A and in their subsequent operation.
Michael Street holds a B.Eng in electronic engineering, an M.Eng in satellite communications and a Ph.D in beyond line of sight radio. He is a Chartered Engineer, a fellow of the IET and has been awarded the Sir Henry Royce Memorial Foundation medal of engineering achievement. He has written over 30 papers on wireless communications, security and voice coding. (In 1998 his paper “Software radios: what are they and how do I write one?” won the IET written premium – a prize which resulted in the author being flown round the world, some years after his radio.)

sunChen Sun, SONY China Research Lab
Chen Sun was born in Beijing. He received the B.E. degree from Northwestern Polytechnical University, Xian, China and the PhD degree from Nanyang Technological University, Singapore, in 2000 and 2005, both in electrical engineering. From August 2004 to May 2008, he was a researcher at ATR Wave Engineering Laboratories, Japan working on adaptive beamforming and direction finding algorithms of parasitic array antennas as well as theoretical analysis of cooperative wireless networks. In June 2008, he joined the National Institute of Information and Communications Technology (NICT), Japan, as expert researcher working on distributed sensing and dynamic spectrum access in TV white space. Since then he has been contributing to IEEE 1900.6 standard, IEEE 802.11af standard and WiFi Alliance specifications for WiFi networks in TV white space. He served as the technical editor of the IEEE 1900.6 standard, working group acting chair and received the IEEE Standard Association Award for his leadership in 2011. In 2014 he received the IEEE 802.11af outstanding contributions award. Currently, he works at SONY China Research Lab. in Beijing as the head of Wireless Network Research Department. He is a delegate of Sony Europe Limited to ETSI TC RRS and rapporteur for the interface between Geolocation databases enabling the operation of Cognitive Radio Systems (EN 303 144).

HaNguyenHa-Nguyen Tran, NICT
Ha-Nguyen Tran is an expert researcher of the Wireless Network Research Institute, NICT. He is working on R&D on MAC and network layer of white space radio and broadband wireless access systems. He was responsible for the development of the TV white space database and was the technical manager of the NICT team to join the Ofcom TV white space pilot in 2013-2014. He contributed to the development of several standards on TV white space, cognitive radio and dynamic spectrum access network technologies such as IEEE 1900.4, 1900.6, 802.11af, and 802.19.1 standards. He has served as Technical Editor of 1900.6a, Secretary of 1900.6 WG, and Secretary of DySPAN Standards Committee. He has worked on seamless mobile networking R&D with the Mobile Networking Group since he joined NICT in 2005.