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W9: Technologies and Proof-of-Concept Activities for 6G 2023 (TPoC6G 2023) - VTC2023-Spring

W9: Technologies and Proof-of-Concept Activities for 6G 2023 (TPoC6G 2023)

Co-chair: Kenichi Higuchi, Tokyo University of Science, Japan
Co-chair: Satoshi Suyama, NTT DOCOMO, Inc, Japan
Co-chair: Yuyuan Chang, Tokyo Institute of Technology, Japan
Co-chair: Koichi Adachi, The University of Electro-Communications, Japan

Publicity Chair
Osamu Muda, Kyushu University


Keynote Co-Chairs
Yukitoshi Sanada, Keio University
Toshihiko Nishimura, Hokkaido University


Fumiyuki Adachi, Tohoku University
Seiichi Sampei, Osaka University
Mamoru Sawahashi, Tokyo City University
Satoshi Denno, Okayama University
Eisuke Fukuda, Fujitsu Lab.
Hidekazu Murata, Kyoto University
Tomoaki Ohtsuki, Keio University
Eiji Okamoto, Nagoya Institute of Technology


Technical Program Committee
Akinori Nakajima, Mitsubishi Electric Corporation
Hiraku Okada, Nagoya University
Hiromichi Tomeba, Sharp Corporation
Jin Nakazato, The University of Tokyo
Kazunori Hayashi, Kyoto University
Koji Yamamoto, Kyoto University
Masakatsu Ogawa, Sophia University
Megumi Kaneko, National Institute of Informatics
Naoto Ishii, NEC Corporation
Nobuhiko Miki, Kagawa University
Shun Kojima, The University of Tokyo
Takashi Seyama, Fujitsu Limited
Takumi Takahashi, Osaka University
Yuichi Miyaji, Aichi Institute of Technology


Abstract: The 5th generation (5G) mobile communication system was just launched in 2019. New technologies and their technical concepts for 5G Evolution (5GE) (5G-Advanced in 3GPP) and the 6th generation (6G) mobile communication system are about to be investigated in many research entities. On top of them, research and development activities for 6G are about to be initiated. This workshop is aiming to provide opportunities to present the latest wireless and mobile network technologies and the proof-of-concept (PoC) activities for 5GE and 6G. Distinguished speakers from industry and academia will present their latest research and development results and discuss their perspectives regarding the new directions towards 6G. The discussion at the workshop is also expected to promote the exchange of new ideas among researchers.



Tuesday, 20 June 2023
Session 1

Opening Address by General Co-Chair
Kenichi Higuchi, Tokyo University of Science, Japan.

Research and Development of Wireless Technologies for 6G/IOWN
Hedekazu Murata, Yamaguchi University, Japan.

Technical Talks I

  • Cloud and Edge Computing Empowered Mobility Digital Twin for Automated Driving: Design and Proof-of-Concept

Kui Wang, Zongdian Li, Tao Yu, and Kei Sakaguchi, Tokyo Tech., Japan.

  • Measurement and Characteristic Analysis of RIS-assisted Wireless Communication Channels in Sub-6 GHz Outdoor Scenarios

Jifeng Lan, Jian Sang, Mingyong Zhou, Boning Gao, Shengguo Meng, Xiao Li, Wankai Tang, Shi Jin, Qiang Cheng, and Tie Jun Cui, Southeast University, China, Ertugrul Basar, Koç University, Turkey.

  • Measurement-based Analysis and Modeling of Channel Characteristics in an Indoor-office Scenario at 100 GHz

Shenrong Li, Pan Tang, Yu Tong, Zhaowei Chang, Zhenfeng Huang, Yunhao Ni, Wenqi Zhao, and Jianhua Zhang, Beijing University of Posts and Telecommunications, China.

  • Clustering Method in Downlink Cell-Free MIMO Using Layered Partially Non-orthogonal ZF-Based Beamforming

Daisuke Ishii, Takanori Hara, and Kenichi Higuchi, Tokyo University of Science, Japan, Nobuhide Nonaka, NTT DOCOMO, INC., Japan.

Tuesday, 20 June 2023
Session 2

Technical Talks II

  • A PUCCH Coverage Enhancement Scheme for 5G/6G Wireless Communications

Wenqi Luo, Congxi Liu, Xiaoxu Wu, and Hang Long, Beijing University of Posts and Telecommunications, China.

  • Proposal of Self-Interference Canceller Using DMRS for Full Duplex Mobile Communications

Takumi Yasaka and Hiroyuki Otsuka, Kogakuin University, Japan, Takayuki Yamada and Satoshi Suyama, NTT DOCOMO, INC., Japan.

  • Improving Semi-Blind Interference Suppression on Multi-Cell Massive MIMO Systems by Multi-Antenna Users

Kazuki Maruta, Tokyo University of Science, Japan.

  • Time-Varying Channel Prediction for Pilot Contamination Mitigation in Hybrid Massive MIMO Communications

Yuki Ono, Yuyuan Chang, and Kazuhiko Fukawa, Tokyo Tech., Satoshi Suyama and Takahiro Asai, NTT DOCOMO, INC., Japan.

  • Null-Space Expansion Technique for Linear MIMO Reception over Time-Variant Channels

Yuki Ohi and Hidekazu Murata, Yamaguchi University, Japan, Makoto Taromaru, Fukuoka University, Japan, Tatsuhiko Iwakuni, Daisei Uchida, and Naoki Kita, NTT, Japan.

  • User-initiated Suboptimal Multiuser Joint Transmit-Receive Diversity in an Asymmetric MIMO Fading Channel

Fumiyuki Adachi and Ryo Takahashi, Tohoku University, Japan.


Co-chair Bios:

Kenichi Higuchi:

Kenichi Higuchi received the B.E. degree from Waseda University, Tokyo, Japan, in 1994, and received the Dr.Eng. degree from Tohoku University, Sendai, Japan in 2002. In 1994, he joined NTT Mobile Communications Network, Inc. (now, NTT DOCOMO, INC.). While with NTT DOCOMO, INC., he was engaged in the research and standardization of wireless access technologies for wideband DS-CDMA mobile radio, HSPA, LTE, and broadband wireless packet access technologies for systems beyond IMT-2000. In 2007, he joined the faculty of the Tokyo University of Science and currently holds the position of Professor. His current research interests are in the areas of wireless technologies and mobile communication systems, including advanced multiple access, radio resource allocation, inter-cell interference coordination, multiple-antenna transmission techniques, signal processing such as interference cancellation and turbo equalization, and issues related to heterogeneous networks using small cells. He was a co-recipient of the Best Paper Award of the International Symposium on Wireless Personal Multimedia Communications in 2004 and 2007, the Best Paper Award from the IEICE in 2021, a recipient of the Young Researcher’s Award from the IEICE in 2003, the 5th YRP Award in 2007, the Prime Minister Invention Prize in 2010, and the Invention Prize of Commissioner of the Japan Patent Office in 2015. He is a member of the IEEE.


Satoshi Suyama:

Satoshi Suyama received the B.S. degree in electrical and electronic engineering, the M.S. degree in information processing, and the Dr. Eng. degree in communications and integrated systems, all from Tokyo Institute of Technology, Tokyo, Japan, in 1999, 2001, and 2010, respectively. From 2001 to 2013, he was an Assistant Professor in the Department of Communications and Integrated Systems at the Tokyo Institute of Technology. He has been engaged in research on OFDM mobile communications systems and applications of the adaptive signal processing, including turbo equalization, interference cancellation, and channel estimation. Since April 2013, he has joined NTT DOCOMO, INC. and has been involved in research and development of 5G mobile communications system. He is currently Manager of 6G Laboratories in NTT DOCOMO. He received the Best Paper Prize from the European Wireless Technology Conference (EuWiT) in 2009, Best Paper Award from International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) in 2016, and the Paper Award from IEICE in 2012. He is a member of IEICE and IEEE.


Yuyuan Chang:

Yuyuan Chang received the B.Eng. degree from Department of Control Engineering and the M.Eng. degree from Department of Electrical Control Engineering, National Chiao Tung University, Hsinchu, Taiwan, R.O.C., in 1997 and 1999, respectively, and another M.Eng. degree from Electrical and Electronic Engineering Department, Tokyo Institute of Technology, Tokyo, Japan, in 2007. He served in Industrial Technology Research Institute, Hsinchu, Taiwan, R.O.C., from 2000 to 2005. In 2011, he received the Ph.D. degree at Electrical and Electronic Engineering Department, Tokyo Institute of Technology, Tokyo, Japan. From Oct. 2011 to March 2016, he was a research fellow of Tokyo Institute of Technology. Since April 2016, he has been an Assistant Professor of Tokyo Institute of Technology. He is a member of IEICE and member of IEEE. In 2013, he received the Best Paper Award of IEICE communication society. His research interests include multi-user MIMO systems, user scheduling algorithms, MIMO sounding systems and millimeter wave wireless communication systems.


Koichi Adachi:

Koichi Adachi received the B.E., M.E., and Ph.D. degrees in engineering from Keio University, Tokyo, Japan, in 2005, 2007,and 2009, respectively. He was a Visiting Researcher with the City University of Hong Kong, Hong Kong, in April 2009 and a Visiting Research Fellow with the University of Kent, Canterbury, U.K., from June to August 2009. From May 2010 to May 2016, he was with the Institute for Infocomm Research, A*STAR, Singapore. He is currently an Associate Professor with The University of Electro-Communications, Tokyo. His research interests include cooperative communications and energy efficient communication technologies.

Dr. Adachi was awarded the Excellent Editor Award from IEEE ComSoc MMTC in 2013. He was recognized as the Exemplary Reviewer from IEEE WIRELESS COMMUNICATIONS LETTERS from 2012 to 2015. He is a coauthor of the WPMC2020 Best Student Paper Award. He served as the General Co-Chair for the 10th and 11th IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium, the Track Co-Chair for Transmission Technologies and Communication Theory of the 78th and 80th IEEE Vehicular Technology Conference in 2013 and 2014, respectively, the Symposium Co-Chair for Communication Theory Symposium of IEEE Globecom 2018 and Wireless Communications Symposium of IEEE Globecom 2020, and the Tutorial Co-Chair for IEEE ICC 2019. He was an Associate Editor of IET Transactions on Communications from 2015 to 2017 and IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY from 2016 to 2018. He has been an Associate Editor of IEEE WIRELESS COMMUNICATIONS LETTERS since 2016, IEEE TRANSACTIONS ON GREEN COMMUNICATIONS AND NETWORKING since 2016, and IEEE OPEN JOURNAL OF VEHICULAR TECHNOLOGY since 2019. From 2007 to 2010, he was a Japan Society for the Promotion of Science Research Fellow. He is a senior member of the IEEE and a member of the IEICE.

Workshop paper submissions Extended: 9 March 2023
Acceptance notification: 16 April 2023
Final paper submission due: 30 April 2023

To submit a paper to this workshop, please visit: