Invited Talks

IEICE Special Invited Session on Information Communication Technologies in Japan

  The Institute of Electronics, Information and Communication Engineers (IEICE) is a representative academic association at the electronics, information and communication engineering fields in Japan. Year 2017 is the 100th anniversary of IEICE
    JAC-ECC2017 is technically co-sponsored by technical committee of communication systems, IEICE communications society (IEICE-CS). This special invited session is co-organized by IEICE-CS and JAC-ECC committee. This session presents special invited talks on recent advances of information communication technologies (ICT) in Japan, such as 5th-generation optical/wireless access, IoT technologies, software-defined network, and network controls. 

Invited Speaker 1:


                  Prof. Tetsuya Miki

                  University of Electro-Communications, Tokyo, Japan

Past Development, Present Situation and Future Perspective of Optical Access Networks


  A study of OAN (Optical Access Networks) for FTTH (Fiber to the Home) services started in the late 1980s. Its standardization was led mainly by NTT Laboratories, BTRL (British Telecom Research Laboratories) and Bellcore (present Telcordia Technologies) from 1990 at the predecessor meeting of FSAN (Full Service Access Networks) forum. PON (Passive Optical Network) architecture and system was established as the initial ITU-T recommendation of G.982 in 1996. Since then, OAN have been developed in sequence to realize further broadband. The latest PON standard are XG-PON/XGS-PON (10Gbps) and NG-PON2 (40Gbps) which is possible to overlay point-to-point links with WDM (Wavelength-Division-Multiplexing) technology for mobile fronthaul and other uses.
  FTTH services started in around 2000, and have spread worldwide. The present FTTH/B (Building) installation is 274M in the world as of June 2016, and its penetration is about 40 % in top 20 countries. Today’s user rate is 100Mbps in most countries, and 1Gbps in some leading countries.
  The biggest impact to OAN in the next generation is 5G mobile radio networking. Because the 5G mobile system is going to equip extremely large number of RRHs (Remote Radio Head) in access areas with femto-cell architecture, it is going to accelerate OAN providing fronthaul capability for RRHs with RoF (Radio over Fiber). Another impact to OAN might be the super HDTV broadcasting like 4K/8K TV. This needs very wide-band broadcasting channels or very high-speed broadband Internet. It means future broadcasting systems force to hold FTTH capability, which might be implemented over OAN. These impacts would drive to develop Software Defined OAN technologies.
  Furthermore, hardware technologies used for advanced OAN such as photonic integrated circuits, power feed fiber and related optical devices, etc may be useful for other various applications such as security equipment, sensor systems, and so on.


  Prof. Tetsuya Miki received M.E. and Ph.D. degrees from Tohoku University in 1967 and 1970, respectively. He joined the NTT Laboratories in 1970, and he was the Executive Manager of the NTT Optical Network Systems Laboratories from 1992 to 1995. Since July 1995, he was a Professor of UEC (University of Electro-Communications), where he was in charge of a Member of the Board of Directors for the university during 2008-2010.
  At NTT Laboratories, he was engaged in the research and development of high-speed digital transmission systems, optical communication systems, FTTH (Fiber to the Home) systems, SDH (Synchronous Digital Hierarchy) and ATM (Asynchronous Transfer Mode) transport networks, and network operation systems. At UEC, he was engaged in photonic networks, wireless networks including RoF (Radio-over-Fiber) systems, and e-learning systems.
  Prof. Miki has published more than 150 papers in the field of ICT, and has given more than 30 keynote/invited talks. He served as a chair and/or a TPC member of various international conferences such as IEEE ICC/GLOBECOM, IEEE ISLS, IEEE NOMS, IOOC, APCC, OECC, APSITT, FSAN Workshop, World Computer Congress and so on. He served as the Vice-President of IEEE ComSoc in 1998 and 1999, and the Vice-President of IEICE in 2003 and 2004. He is IEEE Life Fellow, and IEICE Fellow.

Invited Speaker 2:


                  Prof. Fumiyuki Adachi

                  Research Organization of Electrical Communication,
                  Tohoku University, Japan
Recent Advances in Distributed MIMO Signal Transmission
Techniques for 5G eMBB


  Enhanced mobile broadband (eMBB) is one of important communications services of 5G mobile communications networks. Networks for providing eMBB services must be significantly spectrum and energy efficient. Distributed MIMO network is attractive for 5G. We will present the recent advances in distributed MIMO signal transmission techniques. A number of distributed antennas are deployed in a traditional macro-cell area. Some distributed antennas near a user are selected for distributed MIMO signal transmission which exploits the spatial distribution of both antennas and users. It includes frequency-domain equalization, single-user MIMO diversity, multi-user MIMO multiplexing, and low peak-to-average power ratio (PAPR) waveform design. We will also present MIMO channel estimation which exploits a sparse structure of the propagation channel and adaptive inter-cell interference coordination (adaptive ICIC).



  Fumiyuki Adachi received the B.S. and Dr. Eng. degrees in electrical engineering from Tohoku University, Sendai, Japan, in 1973 and 1984, respectively. In April 1973, he joined NTT Laboratories and conducted various researches on digital cellular mobile communications. From July 1992 to December 1999, he was with NTT DoCoMo, where he led a research group on Wideband CDMA for 3G systems. Since January 2000, he has been with Tohoku University, Sendai, Japan. He was a full professor until March 2016 and is now a specially appointed professor for research at Research Organization of Electrical Communication (ROEC), Tohoku University.   

  He is an IEICE Fellow and an IEEE Fellow. He is a recipient of the IEEE Vehicular Technology Society Avant Garde Award 2000, IEICE Achievement Award 2002, Thomson Scientific Research Front Award 2004, Ericsson Telecommunications Award 2008, Telecom System Technology Award 2009, Prime Minister Invention Award 2010, British Royal Academy of Engineering Distinguished Visiting Fellowship 2011, KDDI Foundation Excellent Research Award 2012, VTS Conference Chair Award 2014, C&C Prize 2014, and Rinzaburo Shida Award 2016. He is listed in Highly Cited Researchers 2001 (

Invited Speaker 3:

                  Dr. Ken-Ichi Suzuki

                  NTT Access Network Service Systems Laboratories


Flexible Access System Architecture, FASA

- Future Access Network Systems based on Virtualization 
and Modularization Technologies -


In this presentation, I mainly introduce a trend of virtualization technology for optical access network systems and our proposed FASA (Flexible Access Network architecture) based on virtualization and modularization technologies.  This presentation also introduces a trend of standardizations for next generation optical access systems including NG-PON2 and 100G-EPON.  Then, I explain optical technologies such as burst-mode optical modulation, transmission, reception, and amplification for realizing next generation optical access systems.  I also introduce interoperability test activities and the related standards in order to ensure system level interoperability among any vendor’s equipment.


Dr. Ken-Ichi Suzuki is a Senior Research Engineer, Supervisor in NTT Access Network Service Systems Laboratories.  Currently, he is working for Flexible Access System Architecture (FASA), which was proposed as new access system architectures based on network virtualization technologies.  He has been also researching and developing optical access related systems/technologies including next generation optical access systems and long-reach PON systems based on burst-mode optical-amplifier and digital coherent technologies.  He has been a Vice Chair of IEEE 1904 ANWG and a Chair of the Optical Access Test Implementation Liaison Committee in HATS conference of Japan.  He also serves a TPC member of OFC2018.

Invited Speaker 4:

                  Prof. Tetsuya Yokotani

                  Kanazawa Institute of Technology, Japan


Requirements on the IoT Communication Platform
and its Standardization


  IoT has been discussed as one of worldwide topics. In Japan, IoT Acceleration Consortium has been organized in June, 2015 by collaboration with industryuniversitygovernment.  To deploy various IoT services, IoT platform including information processing and communication should be provided. This paper focuses on communication technologies in this platform. In IoT, a huge number of packets are transferred across communication networks. Therefore, some functions such as access protocols and traffic control mechanisms should be enhanced from conventional Internet technologies. This paper clarifies network architecture including wide area networks and proximity networks for IoT. Then, it specifies requirements of these networks and proposes technologies to realize these requirements. This paper also summarizes trends of international standardization on networks for IoT and describes future views.


  He obtained B.S., M. S, and Ph. D degrees on information science from the Tokyo University of Science in 1985, 1987, and 1997, respectively. He joined Mitsubishi Electric Corporation in 1987. Since then, he has researched high-speed data communication, optical access and home network, and system performance evaluation based on queuing theory, and has promoted development of these related systems, in Information Technology R&D Center. In 2012, he moved to Global Standardization and R&D relation group, corporate research and development in headquarter as a senior manager. In 2015, he moved to Kanazawa Institute of Technology as a professor of College of Engineering. Moreover, his interests include international standardization for communication networks. He has joined standardization activity in ITU-T SG15 for FTTH and Home networks and in ISO/IEC JTC1 WG10 for IoT architecture. In academia, he has experienced many TPC, symposia and session chairs in major conferences, such as IEEE ICC and GLOBECOM. Currently, he is a chair elect of Technical committee of CQR (Communication Quality and Reliability) in IEEE Communication Society, and a char of Technical committee of Communication System in IEICE.

Invited Speaker 5:

                  Prof. Yukitoshi Sanada

                  Keio University, Japan


R&D Activities for 5G in IEICE Technical Committee
on Radio Communication Systems in FY2016
- Multi-Antenna Technologies and Advanced Modulation/Multiple Access Schemes -


  Towards the beginning of the service in 2020, technology trials and proof-of-concept activities are undergoing for
the 5th generation mobile communication system (5G). This paper provides an overview of the latest research and development activities on the 5G mobile communication systems reported in IEICE technical committee conferences on radio communication systems mainly in FY2016. This survey paper indicates the directions of the evolution of the 5G mobile communication systems.


  Yukitoshi Sanada received his Ph.D. degree in electrical engineering from Keio University, Yokohama, Japan, in 1997. In 1997 he joined the Faculty of Engineering, Tokyo Institute of Technology as a Research Associate. In 2000, he joined Advanced Telecommunication Laboratory, Sony Computer Science Laboratories, Inc, as an associate researcher. In 2001, he joined the Faculty of Science and Engineering, Keio University, where he is now a professor. He is currently a vice chair of IEICE technical committee on radio communication systems (RCS). He received the Fellow Award from IEICE Japan in 2017.

Invited Speaker 6:


                  Prof. Hideki Tode

                  Osaka Prefecture University, Japan

In-Network Guidance Technologies to Retrieve and Desired Contents, Computing Resources, and Network Functions


  This paper presents, as an important and attractive feature for future networks, in-network guidance technologies to search / acquire / utilize generalized resources such as various contents like software update data, video files etc., computing resources and virtual network functions in the present and future network environments. The target networks include so-called Information Centric Network (ICN), and application-level overlay on IP network, wireless multi-hop network, sensor networks and so on, which guide a query message appropriately based on properly logged guidance information in the networks.  Proposed methods improve the search capability from several perspectives and the effectiveness of these methods is verified by extensive computer simulation and emulation experiment. Finally, as an application example, it is demonstrated that a technology introducing the guidance information mechanism into Content Delivery Network (CDN) improves the content delivery performance.


  Hideki Tode received the B. E., M. E., and Ph. D degrees in communications engineering from Osaka University in 1988, 1990, and 1997, respectively. He joined the Department of Communications Engineering, Osaka University as assistant professor from a doctoral course student on Dec. 1, 1991. In 1998 and 1999, he was promoted to a lecturer and associate professor in the Department of Information Systems Engineering. In 2002, He belonged to the Department of Information Networking, Graduate School of Information Science and Technology, Osaka University. From 2008, he is a professor in the Department of Computer Science and Intelligent Systems, Graduate School of Engineering, Osaka Prefecture University. From 2016 to present, he is a chair of IEICE technical committee on network systems (NS). His current research interests include QoS-aware network controls, future optical/wireless network architecture, and contents distribution/ retrieval technologies. Dr. Tode is a member of IEEE and a senior member of IEICE.