Tokyo Institute of Technology   Graduate School of Science and Engineering   Associate Professor

2008.4 - 2012.3

Tokyo Institute of Technology   Graduate School of Science and Engineering   Assistant Professor

2000.5 - 2008.3

Resilient mmWave Multi-Hop Multi-User Massive Relay MIMO for 6G Networks Reviewed

Suwen Ke, Kei Sakaguchi, Gia Khanh Tran

2025 IEEE Wireless Communications and Networking Conference (WCNC)   2025.3

Design of Remote Smart Agriculture System Using LEO Satellite Communications and Solar Power Generation Reviewed

Shieru Otsuka, Kuniaki Uto, Tadashi Kawamoto, Kei Sakaguchi

2025 IEEE International Conference on Consumer Electronics (ICCE)   1 - 6   2025.1

Design of Digital Twin-Based Digital Signage Advertisement Platform Reviewed

Toru Ooka, Zongdian Li, Kelvin Cheng, Daisuke Ichihashi, Kei Sakaguchi

2025 IEEE 22nd Consumer Communications & Networking Conference (CCNC)   01 - 04   2025.1

Millimeter-Wave Massive Analog Relay MU-MIMO With Blocking-Empowered User Scheduling Toward 6G Reviewed

Suwen Ke, Gia Khanh Tran, Zongdian Li, Kei Sakaguchi

IEEE Open Journal of the Communications Society   Vol. 6 ( 2644-125X )   1 - 12   2024.12

Digital Twin-Empowered Routing Management for Reliable Multi-Hop Millimeter Wave V2X Reviewed

Supat Roongpraiwan, Zongdian Li, Tao Yu, Kei Sakaguchi

2024 IEEE 100th Vehicular Technology Conference (VTC2024-Fall)   1 - 6   2024.10

Revolutionizing Over-the-Air Updates: Practical Dual-band V2X Measurements. Reviewed

Sherief Hashima, Zongdian Li, Kohei Hatano, Kei Sakaguchi

VTC Fall   1 - 5   2024.10

Augmented Intelligence in Smart Intersections: Local Digital Twins-Assisted Hybrid Autonomous Driving Reviewed International coauthorship

Kui Wang, Kazuma Nonomura, Zongdian Li, Tao Yu, Kei Sakaguchi, Omar Hashash, Walid Saad, Changyang She, Yonghui Li

IEEE Transactions on Intelligent Vehicles   1 - 15   2024.10

The Seven Worlds and Experiences of the Wireless Metaverse: Challenges and Opportunities Reviewed International coauthorship

Omar Hashash, Christina Chaccour, Walid Saad, Tao Yu, Kei Sakaguchi, Merouane Debbah

IEEE Communications Magazine   1 - 8   2024.8

Internet of Federated Digital Twins: Connecting Twins Beyond Borders for Society 5.0 Reviewed International coauthorship

Tao Yu, Zongdian Li, Omar Hashash, Kei Sakaguchi, Walid Saad, Merouane Debbah

IEEE Internet of Things Magazine, July 2024   Vol. 7 ( No. 5 )   2024.7

UAV-Aided Lifelong Learning for AoI and Energy Optimization in Non-Stationary IoT Networks Reviewed International coauthorship

Zhenzhen Gong, Omar Hashash, Yingze Wang, Qimei Cui, Wei Ni, Walid Saad, Kei Sakaguchi

IEEE Internet of Things Journal   2024.5

Smart Mobility Digital Twin Based Automated Vehicle Navigation System: A Proof of Concept Reviewed

Kui Wang, Zongdian Li, Kazuma Nonomura, Tao Yu, Kei Sakaguchi, Omar Hashash, Walid Saad

IEEE Transactions on Intelligent Vehicles   Vol. 9 ( Issue 3. )   4348 - 4361   2024.2

Digital Twin-Based Transfer Learning for Collaborative Robot Systems: A Proof of Concept Reviewed International coauthorship

Supat Roongpraiwan, Zongdian Li, Mohsen Pourghasemian, Haris Gacanin, Kei Sakaguchi

2024 International Conference on Information Networking (ICOIN)   593 - 598   2024.1

Digital Twins for Autonomous Driving: A Comprehensive Implementation and Demonstration Reviewed International coauthorship

Kui Wang, Tao Yu, Zongdian Li, Kei Sakaguchi, Omar Hashash, Walid Saad

2024 International Conference on Information Networking (ICOIN)   452 - 457   2024.1

Proof-of-Concept of Digital Twin for Road Safety Assisted by B5G Heterogeneous MEC Network Reviewed

Kazuma Nonomura, Kui Wang, Gunhee Cho, Hiroki Matsuo, Jin Nakazato, Zongdian Li, Tao Yu, Kei Sakaguchi

IEEE 21st Consumer Communications & Networking Conference (CCNC, Las Vegas, US)   2024.1

The Future of Flying Base Stations: Empirical and Numerical Investigations of mmWave-Enabled UAVs Reviewed

Ryunosuke Masaoka, Gia Khanh Tran, Jin Nakazato, Kei Sakaguchi

Future Internet   2023.12

MmWave Multi-beam V2X with Fountain Code for Joint Ultra-Broadband, Reliable, and Low Latency Communication Reviewed

S. Habu, K. Sakaguchi, G.K. Tran

The 2023 IEEE 98th Vehicular Technology Conference: VTC2023-Fall (Hong Kong)   2023.10

Field Trial of AR-based Radio Signal Visualization for Better Deployment of mmWave 5G and Beyond. Reviewed

Naoya Okubo, Jin Nakazato, Kei Sakaguchi

The 2023 IEEE 98th Vehicular Technology Conference: VTC2023-Fall (Hong Kong)   2023.10

Multi-User MIMO Based on Millimeter Wave Massive Analog Relay Stations Reviewed

Suwen Ke, Kei Sakaguchi, Gia Khanh Tran, Masashi Iwabuchi, Tomoki Murakami

IEEE 34th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC2023, Toronto, Canada)   2023.9

Optimization of UAV 3D Trajectory in a Post-Disaster Area Using Dual Energy-Aware Bandits Reviewed

Amr Amrallah, Ehab Mahmoud Mohamed, Gia Khanh Tran, Kei Sakaguchi

IEICE Communications Express   2023.8

Towards a Decentralized Metaverse: Synchronized Orchestration of Digital Twins and Sub-Metaverses Reviewed

Hashash, Omar, Christina Chaccour, Walid Saad, Kei Sakaguchi, Tao Yu

IEEE International Conference on Communications(ICC2023, Rome Italy)   2023.5

UAV Trajectory Optimization in a Post-Disaster Area Using Dual Energy-Aware Bandits Reviewed

Amr Amrallah, Ehab Mahmoud Mohamed, Gia Khanh Tran, Kei Sakaguchi

Sensors   2023.1

User-Driven Relay Beamforming for mmWave Massive Analog-Relay MIMO Reviewed

Masashi Iwabuchi, Yoghitha Ramamoorthi, Kei Sakaguchi

Sensors   2023.1

Implementation of the Data Conversion Function for Wireless Environments for Beyond 5G Applications. Reviewed

Keishi Tokugawa, Jin Nakazato, Hiroki Matsuo, Keiichi Kubota, Kei Sakaguchi

20th IEEE Consumer Communications & Networking Conference(CCNC 2023, Las Vegas US)   2023.1

Reshape Car-Sharing System for Super Smart Society: A Digital Twin-Based Method and Implementation. Reviewed

Nonomura Kazuma, Tao Yu, Kei Sakaguchi

The 41st IEEE International Conference on Consumer Electronics (ICCE2023, Las Vegas USA)   2023.1

Experiment of Multi-UAV Full-Duplex System Equipped with Directional Antennas. Reviewed

Tao Yu, Kento Kajiwara, Kiyomichi Araki, Kei Sakaguchi

20th IEEE Consumer Communications & Networking Conference(CCNC 2023, Las Vegas US)   1 - 5   2023.1

Experiment of Multi-UAV Full-Duplex System Equipped with Directional Antennas. Reviewed

Tao Yu, Kento Kajiwara, Kiyomichi Araki, Kei Sakaguchi

CoRR   abs/2211.02295   2023.1

Het-SDVN: SDN-Based Radio Resource Management of Heterogeneous V2X for Cooperative Perception Reviewed

Zongdian Li, Kui Wang, Tao Yu, Kei Sakaguchi

IEEE Access   2023

Exploring Ground Segmentation from LIDAR Scanning-Derived Images Using Convolutional Neural Networks Reviewed

Miguel Luis Rivera Lagahi, Z. Li, K. Sakaguchi, M. Matsuoka

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences   Vol. 48   221 - 226   2023

5G/B5G mmWave Cellular Networks with MEC Prefetching Based on User Context Information Reviewed

Kazuki Maruta, Hiroaki Nishiuchi, Jin Nakazato, Gia Khanh Tran, Kei Sakaguchi

Sensors   22 ( 18 )   6983 - 6983   2022.9

Design of mmW Digital Twin platform toward B5G/6G-High-Precision Measurement System and Relay Station Deployment Reviewed

Keishi Tokugawa, Kazuki Maruta, Keiichi Kubota, Kei Sakaguchi, Jin Nakazato, Mitsuhiro Kuchitsu, Soh Masuko

2022 IEEE 33rd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Kyoto, Japan   813 - 818   2022.9

Design of Mobility-Aware Map Partition and Distribution System for Smooth Automated Driving. Reviewed

Zongdian Li, Miguel Luis R. Lagahit, Masashi Matsuoka, Kei Sakaguchi

2022 IEEE 33rd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC2022) Online   628 - 634   2022.9

MEC/Cloud Orchestrator to Facilitate Private/Local Beyond 5G with MEC and Proof-of-Concept Implementation Reviewed

Jin Nakazato, Zongdian Li, Kazuki Maruta, Keiichi Kubota, Tao Yu, Gia Khanh Tran, Kei Sakaguchi, Soh Masuko

Sensors   22 ( 14 )   2022.7

Dual Energy Aware based Trajectory Optimization for UAV Emergency Wireless Communication Network: A Multi-armed Bandit Approach. Reviewed

Amrallah, Amr, Ehab Mahmoud, Mohamed, Gia, Khanh Tran, Kei Sakaguchi

The 13th International Conference on Ubiquitous and Future Networks (ICUFN)   2022.7

Object Recognition Network Using Continuous Roadside Cameras. Reviewed

Cho, Gunhee, Yusuke Shinyama, Jin Nakazato, Kazuki Maruta, Kei Sakaguchi

The 2022 IEEE 95th Vehicular Technology Conference: VTC2022-Spring, Helsinki, Finland   2022.6

Ground Experiment of Full-Duplex Multi-UAV System Enabled by Directional Antennas. Reviewed

Tao Yu, Kiyomichi Araki, Kei Sakaguchi

12th IEEE Annual Computing and Communication Workshop and Conference(CCWC)Virtual Conference, Las Vegas, USA   1092 - 1097   2022.1

Required Data-Rate-Based Distributed Resource Allocation Scheme for MmWave V2V with Relay Reviewed

Yue Yin, Tao Yu, Kei Sakaguchi

IEEE 19th Annual Consumer Communications & Networking Conference (CCNC2022), Virtual Conference, Las Vegas, USA   2022.1

Spectrum Sharing between Directional-Antenna-Equipped UAV System and Terrestrial Systems. Reviewed

Tao Yu, Kento Kajiwara, Kiyomichi Araki, Kei Sakaguchi

12th IEEE Annual Computing and Communication Workshop and Conference(CCWC) Virtual Conference, Las Vegas, USA   1082 - 1086   2022.1

Full-Duplex Aerial Communication System for Multiple UAVs with Directional Antennas. Reviewed

Tao Yu, Kiyomichi Araki, Kei Sakaguchi

19th IEEE Annual Consumer Communications & Networking Conference(CCNC) Virtual Conference, Las Vegas, USA   175 - 180   2022.1

Spectrum Sharing between Directional-Antenna- Equipped UAV System and Terrestrial Systems. Reviewed

Tao Yu, Kento Kajiwara, Kiyomichi Araki, Kei Sakaguchi

CoRR   abs/2202.00177   2022.1

Full-Duplex Aerial Communication System for Multiple UAVs with Directional Antennas. Reviewed

Tao Yu, Kiyomichi Araki, Kei Sakaguchi

2022 IEEE 19th Annual Consumer Communications & Networking Conference (CCNC)   abs/2202.00176   2022.1

Distributed and Scalable Radio Resource Management for mmWave V2V Relays towards Safe Automated Driving. Reviewed

Yue Yin, Tao Yu, Kazuki Maruta, Kei Sakaguchi

Sensors   22 ( 1 )   93 - 93   2022

Image Size Reduction by Road-Side Edge Computing for Wireless Relay Transmission and Object Detection. Reviewed

Weiran Yuan, Kazuki Maruta, Yu Nakayama, Daisuke Hisano, Kei Sakaguchi

19th IEEE Annual Consumer Communications & Networking Conference(CCNC)   959 - 960   2022

Towards mmWave V2X in 5G and Beyond to Support Automated Driving [Invited Paper]

Kei Sakaguchi, Ryuichi Fukatsu, Tao Yu, Eisuke Fukuda, Kim Mahler, Robert W. Heath Jr., Takeo Fujii, Kazuaki Takahashi, Alexey Khoryaev, Satoshi Nagata, Takayuki Shimizu

IEICE Transactions on Communications   104-B ( 6 )   587 - 603   2021.11

Edge Cloud R&D towards Beyond 5G

Jin Nakazato, Mitsuhiro Kuchitsu, Anil Pawar, Masahiko Nanri, Jin Kusumi, Soh Masuko, Kazuki Maruta, Kei Sakaguchi

Optoelectronics Industry and Technology Conference   2021.11

Automated Driving with Cooperative Perception Based on CVFH and Millimeter-Wave V2I Communications for Safe and Efficient Passing Through Intersections Reviewed

Ryuichi Fukatsu, Kei Sakaguchi

Sensors   21 ( 17 )   2021.9

MmWave Massive Analog Relay MIMO Reviewed

Kei Sakaguchi, Takumi Yoneda, Masashi Iwabuchi, Tomoki Murakami

ITU Journal on Future and Evolving Technologies   Vol. 2 ( No. 6 )   43 - 55   2021.9

Research on the Placement Method of UAV Base Stations for Dynamic Users Reviewed

Masanori Ozasa, Gia Khanh Tran, Kei Sakaguchi

IEEE VTS 17th Asia Pacific Wireless Communications Symposium (APWCS2021) Virtual Conference   2021.8

Automated Driving with Cooperative Perception Using Millimeter-Wave v2v Communications for Safe Overtaking Reviewed

Ryuichi Fukatsu, Kei Sakaguchi

Sensors   21 ( 8 )   2021.4

Automated Driving with Cooperative Perception Using Millimeter-wave V2I Communications for Safe and Efficient Passing through Intersections Reviewed

Ryuichi Fukatsu, Kei Sakaguchi

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) Online   2021-   2021.4

Market Analysis of MEC-Assisted Beyond 5G Ecosystem. Reviewed

Jin Nakazato, Makoto Nakamura, Tao Yu, Zongdian Li, Kazuki Maruta, Gia Khanh Tran, Kei Sakaguchi

IEEE Access   Vol. 9   53996 - 54008   2021.3

Experimental Verification of SDN/NFV in Integrated mmWave Access and Mesh Backhaul Networks Reviewed

Makoto Nakamura, Hiroaki Nishiuchi, Jin Nakazato, Konstantin Koslowski, Julian Daube, Ricardo Santos, Gia Khanh Tran, Kei Sakaguchi

IEICE TRANSACTIONS ON COMMUNICATIONS   E104B ( 3 )   217 - 228   2021.3

Multi-UAV Full-Duplex Communication Systems for Joint Video Transmission and Flight Control. Reviewed

Tao Yu, Shunya Imada, Kiyomichi Araki, Kei Sakaguchi

11th IEEE Annual Computing and Communication Workshop and Conference(CCWC)   1423 - 1428   2021.1

Blind-Spot Visualization via AR Glasses using Millimeter-Wave V2X for Safe Driving.

Kazuki Maruta, Miyuu Takizawa, Ryuichi Fukatsu, Yue Wang, Zongdian Li, Kei Sakaguchi

2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall) Virtual Conference   1 - 5   2021

Design and PoC Implementation of Mmwave-Based Offloading-Enabled UAV Surveillance System Reviewed

Tao Yu, Yoshitaka Takaku, Yohei Kaieda, Kei Sakaguchi

IEEE Open Journal of Vehicular Technology   Vol. 2   436 - 447   2021

Enhanced Dynamic Spectrum Access in UAV Wireless Networks for Post-Disaster Area Surveillance System: A Multi-Player Multi-Armed Bandit Approach. Reviewed

Amr Amrallah, Ehab Mahmoud Mohamed, Gia Khanh Tran, Kei Sakaguchi

Sensors   Vol. 21 ( No. 23 )   7855 - 7855   2021

ZigZag Antenna Configuration for MmWave V2V with Relay in Typical Road Scenarios: Design, Analysis and Experiment.

Yue Yin, Haoze Chen, Zongdian Li, Tao Yu, Kei Sakaguchi

IEICE Transactions on Communications   Vol. 104-B ( No. 10 )   1307 - 1317   2021

Towards Safe Automated Driving: Design of Software-Defined Dynamic MmWave V2X Networks and PoC Implementation Reviewed

Zongdian Li, Tao Yu, Ryuichi Fukatsu, Gia Khanh Tran, Kei Sakaguchi

IEEE Open Journal of Vehicular Technology   Vol. 2   78 - 93   2021

Radio Resource Management Aided Multi-Armed Bandits for Disaster Surveillance System

Amr Amrallah, Ehab Mahmoud, Mohamed, Gia, Khanh Tran, Kei Sakaguchi

International Conference on Emerging Technologies for Communications (ICETC2020) Virtual Conference   2020.12

Design of Antenna Configuration for Interference Control in MmWave V2V Communication Systems. Reviewed

Yue Yin, Haoze Cliei, Zongdian Li, Ryuichi Fukatsu, Tao Yu, Kei Sakaguchi

IEEE 92nd Vehicular Technology Conference (VTC2020-Fall)Virtual Conference   1 - 5   2020.11

Proof-of-Concept of Uncompressed 4K Video Transmission from Drone through mmWave Reviewed

Yoshitaka Takaku, Yohei Kaieda, Tao Yu, Kei Sakaguchi

IEEE 17th Annual Consumer Communications and Networking Conference, CCNC 2020 Las Vegas, USA   2020.1

Benefits of MEC in 5G Cellular Networks from Telecom Operator's View Points Reviewed

Jin Nakazato, Makoto Nakamura, Yu Tao, Gia Khanh Tran, Kei Sakaguchi

IEEE Global Communications Conference (GLOBECOM2019), Hawai , USA   2019.12

Proof-of-Concept of a SDN Based mmWave V2X Network for Safe Automated Driving Reviewed

Zongdian Li, Tao Yu, Ryuichi Fukatsu, Gia Khanh Tran, Kei Sakaguchi

2019 IEEE Global Communications Conference (GLOBECOM) Hawaii, USA   1 - 6   2019.12

Performance Evaluation of Prefetching Algorithm for Real-Time Edge Content Delivery in 5G System. Reviewed

Makoto Nakamura, Hiroaki Nishiuchi, Konstantin Koslowski, Julian Daube, Ricardo Santos, Gia Khanh Tran, Kei Sakaguchi

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall), Honolulu, Hawai   2019-September   1 - 5   2019.9

Revenue Model with Multi-Access Edge Computing for Cellular Network Architecture Reviewed

Jin Nakazato, Yu Tao, Gia Khanh Tran, Kei Sakaguchi

The 11th International Conference on Ubiquitous and Future Networks (ICUFN2019), Zagreb, Croatia   21 - 26   2019.7

Millimeter-Wave V2V Communications with Cooperative Perception for Automated Driving Reviewed

Ryuichi Fukatsu, Kei Sakaguchi

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring), Kuala Lumpur, Malaysia   2019-   2019.4

Toward Millimeter-wave V2X for Automated Driving in 5G and Beyond [Panel Discussion] Reviewed

Kei Sakaguchi, Robert Heath Jr, Thomas Haustein, Satoshi Nagata, Chih-Lin I., Ali Sadri, Koji Takinami

IEEE Wireless Communications and Networking Conference, Marrakech, Morocco   2019.4

MmWave Backhaul Testbed Configurability Using Software-Defined Networking Reviewed

Ricardo Santos, Konstantin Koslowski, Julian Daube, Hakim Ghazzai, Andreas Kassler, Kei Sakaguchi, Thomas Haustein

Wireless Communications and Mobile Computing   2019.4

Fusing Measured and Simulated Data for Radio Map Construction in Localization Applications Reviewed

Azril Haniz, Gia Khanh Tran, Kei Sakaguchi, Jun ichi Takada, Toshihiro Yamaguchi, Tsutomu Mitsui, Shintaro Arata

URSI Asia-Pacific Radio Science Conference (AP-RASC2019), New Delhi, India   2019.3

Construction and Interpolation of a Multi-Frequency Radio Map Reviewed

Azril Haniz, Gia Khanh Tran, Kei Sakaguchi, Jun-ichi Takada, Toshihiro Yamaguchi, Tsutomu Mitsui, Shintaro Arata

1st International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST2019), Dhaka, Bangladesh   2019.1

A Study on Optimal Beam Patterns for Single User Massive MIMO Transmissions Reviewed

Maki Arai, Kei Sakaguchi, Kiyomichi Araki

IEICE Transactions on Communications   Vol. 102 ( No. 2 )   324 - 336   2019

Outdoor Experiment of mmWave Meshed Backhaul for Realtime Edge Content Delivery. Reviewed

Gia Khanh Tran, Makoto Nakamura, Hiroaki Nishiuchi, Kei Sakaguchi, Ricardo Santos, Konstantin Koslowski

The 12th International Workshop on Evolutional Technologies & Ecosystems for Beyond 5G 2019 Marrakech, Morocco   1 - 6   2019

Cooperative Perception Realized by Millimeter-Wave V2V for Safe Automated Driving Reviewed

Kei Sakaguchi, Ryuichi Fukatsu

2018 Asia-Pacific Microwave Conference (APMC), Kyoto Japan   2018-   180 - 182   2018.11

A Guide of Fingerprint Based Radio Emitter Localization Using Multiple Sensors [Invited Paper]

Tao Yu, Azril Haniz, Kentaro Sano, Ryosuke Iwata, Ryouta Kosaka, Yusuke Kuki, Gia Khanh Tran, Jun-ichi Takada, Kei Sakaguchi

IEICE Transactions on Communications   Vol. E101-B ( No. 10 )   2104 - 2119   2018.10

User Satisfaction Constraint Adaptive Sleeping in 5G mmWave Heterogeneous Cellular Network.

Gia Khanh Tran, Hidekazu Shimodaira, Kei Sakaguchi

IEICE Transactions on Communications   Vol. 101-B ( No. 10 )   2120 - 2130   2018.10

Context-Based Dynamic Meshed Backhaul Construction for 5G Heterogeneous Networks Reviewed

Gia Khanh Tran, Ricardo Santos 0004, Hiroaki Ogawa, Makoto Nakamura, Kei Sakaguchi, Andreas Kassler

Journal of Sensor and Actuator Networks (Special Issue on Trends, Issues and Challenges Toward 5G)   Vol. 7 ( No. 4 )   43 - 43   2018.9

Performance Evaluation of 5G mmWave Edge Cloud with Prefetching Algorithm [Invited Paper] Reviewed

Hiroaki Nishiuchi, Gia Khanh Tran, Kei Sakaguchi

The 2018 IEEE 87th Vehicular Technology Conference (VTC2018-Spring, Porto, Portugal)   2018-June   1 - 5   2018.6

SDN Orchestration to Optimize Meshed Millimeter-Wave Backhaul Networks for MEC-Enhanced eMBB Use Cases Reviewed

Konstantin Koslowski, Ricardo Santos 0004, Wilhelm Keusgen, Thomas Haustein, Andreas Kassler, Kei Sakaguchi, Hiroaki Ogawa, Makoto Nakamura, Yu Tao

The IEEE International Symposium on Broadband Multimedia Systems and Broadcasting 2018 (BMSB2018, Valencia, Spain)   1 - 5   2018.6

Architecture of mmWave Edge Cloud in 5G-MiEdge. Reviewed

Gia Khanh Tran, Hiroaki Nishiuchi, Valerio Frascolla, Koji Takinami, Antonio De Domenico, Emilio Calvanese Strinati, Thomas Haustein, Kei Sakaguchi, Sergio Barbarossa, Sergio Barberis, Katsuo Yunoki

2018 IEEE International Conference on Communications Workshops (ICC2018, Kansas City, USA)   1 - 6   2018.5

Millimeter-waves, MEC, and network softwarization as enablers of new 5G business opportunities Reviewed

Valerio Frascolla, Juergen Englisch, Koji Takinami, Luca Chiaraviglio, Stefano Salsano, Katsuo Yunoki, Sergio Barberis, Valerio Palestini, Kei Sakaguchi, Thomas Haustein, Antonio De Domenico, Emilio Calvanese Strinati

IEEE Wireless Communications and Networking Conference, WCNC2018, Barcelona, Spain   2018-   1 - 5   2018.4

Wi-Fi Coordinated WiGig Concurrent Transmissions in Random Access Scenarios Reviewed

Ehab Mahmoud Mohamed, Kei Sakaguchi, Seiichi Sampei

IEEE Transactions on Vehicular Technology   Vol. 66 ( No. 11 )   10357 - 10371   2017.11

Where, When, and How mmWave is Used in 5G and Beyond [Invited Paper]

Kei Sakaguchi, Thomas Haustein, Sergio Barbarossa, Emilio Calvanese Strinati, Antonio Clemente, Giuseppe Destino, Aarno Pärssinen, Il-Gyu Kim, Hee-Sang Chung, Junhyeong Kim, Wilhelm Keusgen, Richard J. Weiler, Koji Takinami, Elena Ceci, Ali Sadri, Liang Xian, Alexander Maltsev, Gia Khanh Tran, Hiroaki Ogawa, Kim Mahler, Robert W. Heath Jr.

IEICE Trans. Electron   Vol. E100-C ( No. 10 )   790 - 808   2017.10

5G-MiEdge: Design, standardization and deployment of 5G phase II technologies: MEC and mmWaves joint development for Tokyo 2020 Olympic games. Reviewed

Valerio Frascolla, Federico Miatton, Gia Khanh Tran, Koji Takinami, Antonio De Domenico, Emilio Calvanese Strinati, Konstantin Koslowski, Thomas Haustein, Kei Sakaguchi, Sergio Barbarossa, Sergio Barberis

IEEE Conference on Standards for Communications and Networking(CSCN2017), Helsinki, Finland   54 - 59   2017.9

A Novel Phase-Difference Fingerprinting Technique for Localization of Unknown Emitters Reviewed

Azril Haniz, Gia Khanh Tran, Kentaro Saito, Kei Sakaguchi, Jun-ichi Takeda, Daisuke Hayashi, Toshihiro Yamaguchi, Shintaro Arata

IEEE Transactions on Vehicular Technology   Vol.66 ( No.9 )   8445 - 8457   2017.9

How Do We Use Spectrum More Efficiently [Invited Paper]

Kei Sakaguchi

Journal of IEICE   Vol. 100 ( No. 8 )   825 - 830   2017.8

MmWave Meshed Network with Traffic and Energy Management Mechanism Reviewed

Kei Sakaguchi, Gia Khanh Tran, Hiroaki Ogawa

18th IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC2017) Sapporo, Japan   2017-   1 - 6   2017.7

Integration of mmWave Access and Backhaul Networks for 5G & Beyond

Gia Khanh Tran, Kei Sakaguchi, Makoto Ando

Japan-China Workshop on the Next Generation Mobile Communication Technology and Application, Jul. 2017 Hokkaido, Japan   2017.7

Design and Implementation of Lighting Control System Using Battery-Less Wireless Human Detection Sensor Networks Reviewed

Tao Yu, Yusuke Kuki, Gento Matsushita, Daiki Maehara, Seiichi Sampei, Kei Sakaguchi

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E100B ( No. 6 )   974 - 985   2017.6

Energy Monitoring and Management in 5G Integrated Fronthaul and Backhaul Reviewed

Osamah Ibrahiem Abdullaziz, Marco, Capitani, Claudio Ettore Casetti, Carla Fabiana, Chiasserini, Shahzoob Bilal Chundrigar, Giada, Landi, Xi Li, Francesca Moscatelli, Kei Sakaguchi, Samer T. Tala

the European Conference on Networks and Communications (EuCNC’2017), Oulu, Finland   2017.6

Novel Resource and Energy Management for 5G Integrated Backhaul/Fronthaul (5G Crosshaul) Reviewed

Xi Li, Raihana Ferdous, Carla Fabiana, Chiasserini, Claudio Ettore Casetti, Francesca, Moscatelli, Giada Landi, Ramon Casellas, Kei, Sakaguchi, Shahzoob Bilal Chundrigar, Ricard, Vilalta, Josep Mangues, Andres Garcia-Saavedra, Xavier Costa-Pérez, Leonardo Goratti, Domenico, Siracusa

IEEE International Conference on Communications (ICC2017), Paris, France   2017.5

Traffic Adaptive Formation of mmWave Meshed Backhaul Networks Reviewed

Hiroaki Ogawa, Gia Khanh Tran, Kei Sakaguchi, Thomas Haustein

2017 IEEE International Conference on Communications Workshops (ICC2017) Paris, France   185 - 191   2017.5

Spatial Fading Emulator - Early OTA Device in Japan

Jun-Ichi Takada, Koichi Ogawa, Kei Sakaguchi

The 11th European Conference on Antennas and Propagation, EUCAP 2017, Paris, France   3673 - 3675   2017.3

Turning the Knobs on OpenFlow-Based Resiliency in mmWave Small Cell Meshed Networks. Reviewed

Ricardo Santos, Hiroaki Ogawa, Gia Khanh Tran, Kei Sakaguchi, Andreas Kassler

2017 IEEE Globecom Workshops (GLOBECOM 2017) Singapore   2018-January   1 - 5   2017.1

Experimental Work on WiGig Coverage Area Management and Beamforming Training Using Wi-Fi Fingerprint Reviewed

Ehab Mahmoud Mohamed, Kei Sakaguchi, Seiichi Sampei

2017 14TH IEEE ANNUAL CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE (CCNC)   772 - 777   2017

Optimal Design Method of MIMO Antenna Directivities and Corresponding Current Distributions by Using Spherical Mode Expansion Reviewed

Maki Arai, Masashi Iwabuchi, Kei Sakaguchi, Kiyomichi Araki

IEICE Transactions on Communications   Vol. E100-B ( No. 10 )   1891 - 1903   2017

Toward the Realization of mmWave based 5G Cellular Networks

Gia Khanh Tran, Kei Sakaguchi, Makoto Ando

The 19th International Symposium on Wireless Personal Multimedia Communications (WPMC 2016), Shenzhen, China   2016.11

mmWave Access/Backhaul Integrated 5G Heterogeneous Networks

Gia Khanh Tran, Kei Sakaguchi, Makoto Ando

7TH FOKUS FUSECO FORUM (FUSECO2016), Berlin, Germany   2016.11

Proof-of-Concept of a Millimeter-Wave Integrated Heterogeneous Network for 5G Cellular [Invited Paper]

S. Okasaka, R.J. Weiler, W. Keusgen, A, Pudeyev, A. Maltsev, K. Sakaguchi

Sensors   Vol. 16 ( No. 9 )   2016.8

Channel Measurement and Modeling for 5G Urban Microcellular Scenarios (Invited Paper) Reviewed

M. Peter, R.J. Weiler, B. Göktepe, W. Keusgen, K. Sakaguchi

Sensors   Vol. 16 ( No. 8 )   2016.8

Environment Induced Shadowing of Urban Millimeter-Wave Access Links Reviewed

R.J. Weiler, M. Peter, W. Keusgen, K, Sakaguchi, F. Undi

: IEEE Wireless Communications Letters ( Volume: 5, Issue: 4, August 2016)   Vol. 5 ( No. 4 )   440 - 443   2016.8

Practical Implementation of Spectrum Sensing and Signal Detection for Satellite Broadcasting Systems Reviewed

Hiroyuki Kamata, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E99-B ( No. 8 )   1894 - 1901   2016.8

Millimeter wave on Your Hand in 5G

Kei Sakaguchi, Thomas Haustein

the 25th Edition of the European Conference on Networks and Communications (EuCNC 2016), Athens, Greece   2016.6

Phase Noise-Robust Channel Estimation for Simple ICI Compensation of Millimeter Wave OFDM Systems

Yuyuan Chang, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEICE Communications Express   Vol. 5 ( No. 7 )   209 - 215   2016.5

PoC of mmWave (40 and 60 GHz) Integrated 5G Heterogeneous Networks Reviewed

Makoto Ando, Toru Taniguchi, Makoto Noda, Akira Yamaguchi, Kei Sakaguchi, Gia Khanh Tran

European Wireless Conference 2016, Oulu, Finland   21 - 24   2016.5

Experimental Study on Battery-Less Sensor Network Activated by Multi-Point Wireless Energy Transmission

Daiki Maehara, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E99-B ( No. 4 )   905 - 916   2016.4

Diamond Cellular Network-Optimal Combination of Small Power Basestations and CoMP Cellular Networks Reviewed

Hidekazu Shimodaira, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki, Shinobu Nanba, Satoshi Konishi

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E99-B ( No. 4 )   917 - 927   2016.4

Practical Evaluation of on-demand Smallcell ON/OFF based on Traffic Model for 5G Cellular Networks Reviewed

Gia Khanh Tran, Hidekazu Shimodaira, Roya Ebrahim Rezagah, Kei Sakaguchi, Kiyomichi Araki

2016 IEEE Wireless Communications and Networking Conference Workshops (WCNCW 2016), Doha, Qatar   2016.4

Evaluation of Oversampling Rate Limited Dual-Channel Digital Predistortion with 3-Box Nonlinear Model of Power Amplifier Reviewed

Yuyuan Chang, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

2016 IEEE MTT-S International Wireless Symposium (IWS 2016), Shanghai, China   2016.3

Robust and Low Complexity Bandwidth and Carrier Frequency Estimation for Cognitive Radio Reviewed

Hiroyuki Kamata, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E99-B ( No. 2 )   499 - 506   2016.2

Wi-Fi/WiGig Coordination for Optimal WiGig Concurrent Transmissions in Random Access Scenarios Reviewed

Ehab Mahmoud Mohamed, Kei Sakaguchi, Seiichi Sampei

2016 IEEE 83RD VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING)   2016

Demonstration of mmWave Systems and Networks for the HetNet in 5G Mobile Communication Reviewed

Makoto Ando, Miao Zhang, Jiro Hirokawa, Kei Sakaguchi, Toru Taniguchi, Makoto Noda, Akira Yamaguchi

2016 URSI INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC THEORY (EMTS)   111 - 113   2016

Evaluation of mmWave Overlaid 5G Heterogeneous Cellular Networks - Suitable Frequency Bands for Different 5G KPIs

G.K. Tran, H. Shimodaira, K. Sakaguchi

13th 2016 IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium（the 13th IEEE VTS APWCS 2016), Tokyo, Japan   2016

Propagation Channel Interpolation for Fingerprint-Based Localization of Illegal Radios Reviewed

Azril Haniz, Gia Khanh Tran, Ryosuke Iwata, Kei Sakaguchi, Jun-ichi Takada, Daisuke Hayashi, Toshihiro Yamaguchi, Shintaro Arata

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E98-B ( No. 12 )   2508 - 2519   2015.12

Millimeter-Wave Wireless LAN and its Extension Toward 5G Heterogeneous Networks [Invited Paper]

Kei Sakaguchi, Ehab Mahmoud Mohamed, Hideyuki Kusano, Makoto Mizukami, Shinichi Miyamoto, Roya E. Rezagah, Koji Takinami, Kazuaki Takahashi, Naganori Shirakata, Hailan Peng, Toshiaki Yamamoto, Shinobu Nanba

IEICE Transactions on Communications   Vol. E98-B ( No. 10 )   1932 - 1948   2015.10

Localization of Illegal Radios Utilizing Cross-Correlation of Channel Impulse Response with Interpolation in Urban Scenarios Reviewed

Azril Haniz, Gia Khanh Tran, Kei Sakaguchi, Jun-Ichi Takada, Daisuke Hayashi, Toshihiro Yamaguchi, Shintaro Arata

MILCOM 2015 - 2015 IEEE Military Communications Conference, Florida, USA   2015-   210 - 215   2015.10

Development of 4 × 4 MIMO-OFDM system and test measurement Reviewed

Kei Mizutani, Kei Sakaguchi, Jun Ichi Takada, Kiyomichi Araki

European Signal Processing Conference   06-10-September-2004   701 - 704   2015.4

Millimeter-Wave Evolution for 5G Cellular Networks

Kei Sakaguchi, Gia Khanh Tran, Hidekazu Shimodaira, Shinobu Nanba, Toshiaki Sakurai, Koji Takinami, Isabelle Siaud, Emilio Calvanese Strinati, Antonio Capone, Ingolf Karls, Reza Arefi, Thomas Haustein

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E98-B ( No. 3 )   388 - 402   2015.3

Delayed Offloading Zone Associations using Cloud Cooperated Heterogeneous Networks Reviewed

Ehab Mahmoud Mohamed, Kei Sakaguchi, Seiichi Sampei

2015 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)   374 - 379   2015

Deployment of LED light control system using battery-less wireless human detection sensor networks Reviewed

Yu Tao, Yusuke Kuki, Gento Matsushita, Daiki Maehara, Seiichi Sampei, Kei Sakaguchi

2015 IEEE International Conference on RFID Technology and Applications (RFID-TA)   14 - 19   2015

WiFi Assisted Multi-WiGig AP Coordination for Future Multi-Gbps WLANs Reviewed

Ehab Mahmoud Mohamed, Hideyuki Kusano, Kei Sakaguchi, Seiichi Sampei

2015 IEEE 26TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC)   1980 - 1984   2015

Cell Discovery in 5G HetNets Using Location-Based Cell Selection Reviewed

Roya E. Rezagah, Hidekazu Shimodaira, Gia Khanh Tran, Kei Sakaguchi, Shinobu Nanba

2015 IEEE CONFERENCE ON STANDARDS FOR COMMUNICATIONS AND NETWORKING (CSCN)   137 - 142   2015

Investigation on Millimeter-wave Spectrum for 5G Reviewed

Hidekazu Shimodaira, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

2015 IEEE CONFERENCE ON STANDARDS FOR COMMUNICATIONS AND NETWORKING (CSCN)   143 - 148   2015

Millimeter Wave Beamforming Based on WiFi Fingerprinting in Indoor Environment Reviewed

Ehab Mahmoud Mohamed, Kei Sakaguchi, Seiichi Sampei

2015 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATION WORKSHOP (ICCW)   1155 - 1160   2015

Antennas and Propagation for Millimeter Wave Radio Systems for 5G Mobile Networks -the Tokyo Tech Wireless Fiber Project-

Ando, M., Hirokawa, J., Zhang, M., Toyosaki, K., Ali, M., Sakaguchi, K., IEEE

2015 International Workshop on Antenna Technology (Iwat)   2015

Dynamic cell activation and user association for green 5G heterogeneous cellular networks Reviewed

Gia Khanh Tran, Hidekazu Shimodaira, Roya Ebrahim Rezagah, Kei Sakaguchi, Kiyomichi Araki

2015 IEEE 26TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC)   2364 - 2368   2015

Large Scale Cooperation in Cellular Networks with Non-uniform User Distribution Reviewed

Roya E. Rezagah, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki, Satoshi Konishi

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E97-B ( No. 11 )   2512 - 2523   2014.11

A Spatial Fading Emulator for Evaluation of MINIO Antennas in a Cluster Environment Reviewed

Tsutomu Sakata, Atsushi Yamamoto, Koichi Ogawa, Hiroshi Iwai, Jun-ichi Takada, Kei Sakaguchi

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E97-B ( No. 10 )   2127 - 2135   2014.10

Experiments Validating the Effectiveness of Multi-Point Wireless Energy Transmission with Carrier Shift Diversity [Best Paper Award] Reviewed

Daiki Maehara, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki, Minoru Furukawa

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E97-B ( No. 9 )   1928 - 1937   2014.9

Enabling 5G backhaul and access with millimeter-waves Reviewed

Richard J. Weiler, Michael Peter, Wilhelm Keusgen, Emilio Calvanese-Strinati, Antonio De Domenico, Ilario Filippini, Antonio Capone, Isabelle Siaud, Anne-Marie Ulmer-Moll, Alexander Maltsev, Thomas Haustein, Kei Sakaguchi

EuCNC 2014 - European Conference on Networks and Communications   2014.8

Delayed Offloading using Cloud Cooperated Millimeter Wave Gates

Ehab Mahmoud Mohamed, Kei Sakaguchi, Seiichi Sampei

2014 IEEE 25TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATION (PIMRC)   1852 - 1856   2014.6

Outdoor millimeter-wave access for heterogeneous networks - Path loss and system performance. Reviewed

Richard J. Weiler, Michael Peter, Wilhelm Keusgen, Hidekazu Shimodaira, Gia Khanh Tran, Kei Sakaguchi

25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication(PIMRC)   2014-June   2189 - 2193   2014.6

Base Station Antenna Configuration for Robust MU-MIMO Reviewed

Takuya Ishihara, Kei Sakaguchi, Seiichi Sampei, Gia Khanh Tran

2014 IEEE International Conference on Communication Systems (ICCS)   517 - 521   2014

Wireless Grid to realize Battery-less Sensor Networks in Indoor Environments Reviewed

Gento Matsushita, Daiki Maehara, Yusuke Kuki, Kei Sakaguchi, Seiichi Sampei, Kiyomichi Araki

2014 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC)   690 - 692   2014

Cell Association Method for Multiband Heterogeneous Networks Reviewed

Hidekazu Shimodaira, Gia Khanh Tran, Kiyomichi Araki, Shinobu Nanba, Takahiro Hayashi, Kei Sakaguchi, Satoshi Konishi

2014 IEEE 25TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATION (PIMRC)   2209 - 2213   2014

An Efficient Relay Node Placement Scheme for Two-Way MIMO Multi-Hop Networks in Practical Indoor Environments Reviewed

Namzilp Lertwiram, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS   Vol. 12 ( No. 6 )   2977 - 2987   2013.6

Optimization of Picocell Locations and Its Parameters in Heterogeneous Networks with Hotspots Reviewed

Hidekazu Shimodaira, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki, Shoji Kaneko, Noriaki Miyazaki, Satoshi Konishi, Yoji Kishi

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E96-B ( No. 6 )   1338 - 1347   2013.6

Distributed Power Control Network and Green Building Test-Bed for Demand Response in Smart Grid Reviewed

Kei Sakaguchi, Van Ky Nguyen, Yu Tao, Gia Khanh Tran, Kiyomichi Araki

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES   Vol. E96-A ( No. 5 )   896 - 907   2013.5

Experiment on Battery-less Sensor Activation via Multi-point Wireless Energy Transmission Reviewed

Daiki Maehara, Ryota Akai, Gia Khanh Tran, Kei Sakaguchi, Seiichi Sampei, Kiyomichi Araki, Hiroshi Iwai

2013 IEEE 24TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC)   2336 - 2340   2013

Cloud Cooperated Heterogeneous Cellular Networks Invited Reviewed

Kei Sakaguchi, Seiichi Sampei, Hidekazu Shimodaira, Roya Rezagah, Gia Khanh Tran, Kiyomichi Araki

2013 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS SYSTEMS (ISPACS)   787 - 791   2013

An Efficient Relay Placement Method with Power Allocation for MIMO Two-Way Multi-Hop Networks Reviewed

Gia Khanh Tran, Rindranirina Ramamonjison, Kei Sakaguchi, Kiyomichi Araki

IEICE Transactions on Communications   Vol. E96-B ( No. 5 )   1176 - 1186   2013

Experiment on MIMO Cognitive Radio using Tx/Rx Beamforming Reviewed

Ryosuke Iwata, Vutha Va, Kei Sakaguchi, Kiyomichi Araki

2013 IEEE 24TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC)   2871 - 2875   2013

Performance Comparison between Open Loop and Closed Loop MIMO-OFDM Schemes Using Analytical Approach Reviewed

Minjee Kim, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E95-B ( No. 11 )   3498 - 3508   2012.11

A Study of Trade-off between Opportunistic Resource Allocation and Interference Alignment in Femtocell Scenarios . Reviewed

N. Lertwiram, P. Popovski, K. Sakaguchi

IEEE Wireless Communications Letters   Vol. 1 ( No. 4 )   356 - 359   2012.8

Distributed Optimization of Transceiver Weights in MIMO Two-way Multihop Networks Reviewed

Rindranirina Ramamonjison, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

2012 IEEE 75TH VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING) Yokohama   2012.7

Prototype Hardware for TDD Two-Way Multi-Hop Relay Network Using MIMO Network Coding Reviewed

Keiichi Mizutani, Takehiro Miyamoto, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E95-B ( No. 5 )   1738 - 1750   2012.5

Study on Resource Optimization for Heterogeneous Networks Reviewed

Gia Khanh Tran, Shinichi Tajima, Rindranirina Ramamonjison, Kei Sakaguchi, Kiyomichi Araki, Shoji Kaneko, Noriaki Miyazaki, Satoshi Konishi, Yoji Kishi

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E95-B ( No. 4 )   1198 - 1207   2012.4

Performance Analysis of MIMO Relay Network via Propagation Measurement in L-Shaped Corridor Environment Reviewed

Namzilp Lertwiram, Gia Khanh Tran, Keiichi Mizutani, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E95-B ( No. 4 )   1345 - 1356   2012.4

Single Front-End MIMO Architecture with Parasitic Antenna Elements [Best Paper Award] Reviewed

Mitsuteru Yoshida, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E95-B ( No. 3 )   882 - 888   2012.3

Relay Placement of Two-Way Multi-Hop Relay Network with Power Adaptation in a Realistic Shadowing Environment Reviewed

Namzilp Lertwiram, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

2012 IEEE 75TH VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING)   2012

Network synchronization scheme for scalable two-way multi-hop network employing MIMO network coding Reviewed

Yutaro Kida, Keiichi Mizutani, Gia Khanh Tran, Takehiro Miyamoto, Kei Sakaguchi, Kiyomichi Araki

2012 IEEE 75TH VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING)   2012

Multi-sensor Location Estimation for Illegal Cell-phone Use in Real-Life Indoor Environment Reviewed

Kentaro Sano, Gia Khanh Tran, Masahiro Watanabe, Kei Sakaguchi, Kiyomichi Araki, Daisuke Hayashi, Toshihiro Yamaguchi, Shintaro Arata

2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS (IEEE ICCS 2012)   80 - 84   2012

Multi-user data sharing using coordinator with network coding and layered transmission Reviewed

Keiichi Mizutani, Thomas Haustein, Kei Sakaguchi

18th European Wireless Conference, EW 2012   2012

Experimental study on multi-point wireless energy transmission at 950 MHz band Reviewed

Daiki Maehara, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki, Takehiro Miyamoto, Minoru Furukawa

Conference Proceedings of the International Symposium on Signals, Systems and Electronics   2012

Shared Remote Radio Head Architecture to Realize Semi-Dynamic Clustering in CoMP Cellular Networks Reviewed

Daisuke Matsuo, Roya Rezagah, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki, Shoji Kaneko, Noriaki Miyazaki, Satoshi Konishi, Yoji Kishi

2012 IEEE GLOBECOM WORKSHOPS (GC WKSHPS)   1145 - 1149   2012

Dynamic Fractional Base Station Cooperation Using Shared Distributed Remote Radio Units for Advanced Cellular Networks Reviewed

Naoki Kusashima, Ian Dexter Garcia, Kei Sakaguchi, Kiyomichi Araki, Shoji Kaneko, Yoji Kishi

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E94-B ( No. 12 )   3259 - 3271   2011.12

Spectrum Allocation Strategies for Heterogeneous Networks Reviewed

Rindra Ramamonjison, Gia Khanh Iran, Kei Sakaguchi, Kiyomichi Araki, Shoji Kaneko, Yoji Kishi, Noriaki Miyazaki

Proceedings of the 2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011   201 - 205   2011.6

Realization of TDD Two-way Multi-hop Relay Network with MIMO Network Coding Reviewed

Keiichi Mizutani, Yutaro Kida, Takehiro Miyamoto, Kei Sakaguchi, Kiyomichi Araki

Proceedings of the 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications   2011.5

Message from TPC chairs Reviewed

Seiichi Sampei, Marcos Katz, Ying-Chang Liang, Hiroshi Harada, Kei Sakaguchi

Proceedings of the 2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011   xii - xiii   2011

Wireless grid: Enabling ubiquitous sensor networks with wireless energy supply Reviewed

Ragil Putro Wicaksono, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEEE Vehicular Technology Conference   2011

A Study on Beam Tilt Angle of Base Station Antennas for Base Station Cooperation Systems Reviewed

Doppo Sugimura, Maki Arai, Kei Sakaguchi, Kiyomichi Araki, Takayuki Sotoyama

2011 IEEE 22ND INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC)   2374 - 2378   2011

A Study on Design of Spatial Fading Emulator Based on Clarke's Model Reviewed

Daisuke Matsuo, Maki Arai, Kei Sakaguchi, Kiyomichi Araki

2011 IEEE 22ND INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC)   1642 - 1646   2011

Wireless Distributed Network: For Flexible Networking and Radio Resource Management [Invited Paper] Invited Reviewed

Seiichi Sampei, Kei Sakaguchi, Shinsuke Ibi, Koji Yamamoto

IEICE Trans. Commun.   Vol. 93 ( No. 12 )   3218 - 3227   2010.12

The Gaussian MIMO Broadcast Channel under Receive Power Protection Constraints [Best Paper Award] Reviewed

Ian Dexter Garcia, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol.E93-B ( No.12 )   3448 - 3460   2010.12

Effect of Power Allocation Schemes on MIMO Two-Way Multi-Hop Network

Jonghyun Lee, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E93-B ( No. 12 )   3362 - 3370   2010.12

Performance Evaluation of Spatial Correlation Characteristics for Handset Antennas Using Spatial Fading Emulator Based on Clarke’s Model

H. Iwai, K. Sakaguchi, T. Sakata, A. Yamamoto

IEICE Trans. Commun.   Vol. E930-B ( No. 10 )   2514 - 2522   2010.10

Performance evaluation of null-steering bistatic MIMO radar Reviewed

Takao Sekiguchi, Kei Sakaguchi, Kiyomichi Araki, Sintaro Arata

2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010   2010.9

MIMO Network Coding-Based PHY/MAC Protocol for Replacement of CSMA/CA in Efficient Two-Way Multihop Relay Networks Reviewed

Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING   Vol. 2010 ( ID.476732 )   2010.7

Performance Analysis of MIMO Schemes in Residential Home Environment via Wideband MIMO Propagation Measurement

Gia Khanh Tran, Nguyen Dung Dao, Kei Sakaguchi, Kiyomichi Araki, Hiroshi Iwai, Tsutomu Sakata, Koichi Ogawa

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES   Vol. E93-A ( No. 4 )   814 - 829   2010.4

Topology Design and Performance Evaluation of Wireless Sensor Network Based on MIMO Channel Capacity

Ky Leng, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E93-B ( No.1 )   22 - 28   2010.1

Impact of Base Station Cooperation on Cell Planning

Ian Dexter Garcia, Naoki Kusashima, Kei Sakaguchi, Kiyomichi Araki, Shoji Kaneko, Yoji Kishi

Eurasip Journal on Wireless Communications and Networking   Vol. 2010 ( ID.406749 )   2010

MIMO Radio Propagation Measurement for Two-Hop Relay Network on L-shaped Corridor with Network Performance Analysis Reviewed

Namzilp Lertwiram, Gia Khanh Tran, Keiichi Mizutani, Kei Sakaguchi, Kiyomichi Araki

2010 IEEE 71ST VEHICULAR TECHNOLOGY CONFERENCE   2010

Theoretical Analysis of Base Station Cooperation MIMO Channel by Using Eigenvalue Theory of Wishart Matrix Reviewed

Maki Arai, Kei Sakaguchi, Kiyomichi Araki, Takayuki Sotoyama

2010 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM   2010

Network throughput of TDD/TDMA two-way multi-hop relay network with MIMO network coding in indoor environment Reviewed

Keiichi Mizutani, Takehiro Miyamoto, Kei Sakaguchi, Kiyomichi Araki

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC   456 - 460   2010

On the spectral efficiency of MIMO two-way multihop networks with co-existing flows Reviewed

Rindranirina Ramamonjison, Jonghyun Lee, Kei Sakaguchi, Kiyomichi Araki

2010 Proceedings of the 5th International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCom 2010   2010

An efficient retransmission scheme for MIMO two-way relay network employing network coding Reviewed

Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

2010 IEEE 71ST VEHICULAR TECHNOLOGY CONFERENCE   2010

Optimization of Diversity Antenna Directivities based on Spherical Mode Expansion Reviewed

Maki Arai, Masashi Iwabuchi, Kei Sakaguchi, Kiyomichi Araki

2010 ASIA-PACIFIC MICROWAVE CONFERENCE   1577 - 1580   2010

Dynamic Cooperation Set Clustering on Base Station Cooperation Cellular Networks Reviewed

Ian Dexter Garcia, Naoki Kusashima, Kei Sakaguchi, Kiyomichi Araki

2010 IEEE 21ST INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC)   2127 - 2132   2010

Network Synchronization for Two-Way Multi-Hop Relay Networks with Block Modulation

Keiichi Mizutani, Kei Sakaguchi, Kiyomichi Araki

2010 IEEE 71st Vehicular Technology Conference   2010

Routing and Power Allocation in MIMO Two-way Multihop Networks: A New Cross-layer Approach to Mitigate Interference Reviewed

Rindranirina Ramamonjison, Jonghyun Lee, Kei Sakaguchi, Kiyomichi Araki

2010 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE GLOBECOM 2010   2010

2D MIMO Network Coding with Inter-Route Interference Cancellation

Gia Khanh Tran, Kei Sakaguchi, Fumie Ono, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E92-B ( No. 12 )   3665 - 3675   2009.12

STBC MIMO Network Coding for Bi-directional Multi-Hop Relay Networks

Fumie Ono, Kei Sakaguchi

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E92-B ( No. 12 )   3676 - 3682   2009.12

Power allocation for MIMO two-way relay network Reviewed

Jonghyun Lee, Tran Gia Khanh, Kei Sakaguchi, Kiyomichi Araki

ICICS 2009^ Conference Proceedings of the 7th International Conference on Information, Communications and Signal Processing   2009.12

Fractional Base Station Cooperation Cellular Network Reviewed

Naoki Kusashima, Ian Dexter Gracia, Kei Sakaguchi, Kiyomichi Araki, Shoji Kaneko, Yoji Kishi

ICICS 2009- Conference Proceedings of the 7th International Conference on Information, Communications and Signal Processing   2009.12

Performance Evaluation of Wireless Sensor Network Based on MIMO Relaying Channel Capacity

Ky Leng, Kei Sakaguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E92-B ( No.10 )   3166 - 3173   2009.10

Network performance improvement of MIMO two-way relay with respect to CSMA/CA mesh networks Reviewed

Khanh Tran Gia, Kei Sakaguchi, Kiyomichi Araki

ICICS 2009 - Conference Proceedings of the 7th International Conference on Information, Communications and Signal Processing   2009

Wireless mesh network performance: MIMO two-way relay vs. CSMA/CA based protocols Reviewed

Khanh Tran Gia, Kei Sakaguchi, Kiyomichi Araki

2009 IEEE 20TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS   701 - 705   2009

Multi-Stream Multiplexing for MIMO Two-Way Mesh Networks Reviewed

Fumie Ono, Kei Sakaguchi, Takayuki Sugiyasu

2008 International Symposium on Information Theory and its Applications, ISITA2008   2008.12

Network Capacity Improvement with Two Dimensional MIMO Network Coding Reviewed

Khanh Tran Gia, Kei Sakaguchi, Fumie Ono, Kiyomichi Araki

2nd International Conference on Signal Processing and Communication Systems, ICSPCS 2008   2008.12

Base station cooperation null-beamforming for spectrum sharing between next generation cellular and fixed satellite systems

Ian Dexter Garcia, David Chanin, Kei Sakaguchi, Kiyomichi Araki, Tomohiro Sugawara, Takayuki Sotoyama, Takashi Fukagawa

IEICE Technical Report   Vol. 107 ( No. 519 )   33 - 38   2008.2

Multi-Channel Multi-Stage Transmultiplexing Digital Down Converter and its Application to RFID (ISO18000-3 mode 2) Reader/Writer

Yuichi Nakagawa, Kei Sakaguchi, Hideki Kawamura, Kyoji Ohashi, Masahiro Muraguchi, Kiyomichi Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E91-B ( No.1 )   139 - 146   2008.1

Study on Soft Decision Based Cooperative Sensing for Cognitive Radio Networks

Hiromasa Uchiyama, Kenta Umebayashi, Takeo Fujii, Fumie Ono, Kei Sakaguchi, Yukihiro Kamiya, Yasuo Suzuki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E91-B ( No. 1 )   95 - 101   2008.1

MIMO Spatial Spectrum Sharing for High Efficiency Mesh Network

Fumie Ono, Kei Sakaguchi

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E91-B ( No. 1 )   62 - 69   2008.1

Cell planning for cooperative transmission Reviewed

Ian Dexter Garcia, Kei Sakaguchi, Kiyomichi Araki

WCNC 2008: IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-7   1769 - 1774   2008

Effect of Ranging Error on Base Station Cooperation OFDM System Reviewed

Minjee Kim, Osamu Miyagi, Ian Dexter Garcia, Kei Sakaguchi, Kiyomichi Araki

2008 INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY AND ITS APPLICATIONS, VOLS 1-3   159 - 164   2008

Bi-directional link multiplexing for MIMO mesh network Reviewed

Fumie Ono, Kei Sakaguchi

2007 6th International Conference on Information, Communications and Signal Processing, ICICS （Singapore）   2007.12

3-D Angular Spectrum Measurements in a Residential Two-Story House at 5GHz

Hiroshi Iwai, Tsutomu Sakata, Atsushi Yamamoto, Kei Sakaguchi

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E90-B ( No. 9 )   2344 - 2351   2007.9

Study on Cooperative Sensing in Cognitive Radio based Ad-hoc Network, Reviewed

Hiromasa Uchiyama, Kenta Umebayashi, Yukihiro Kamiya, Yasuo Suzuki, Takeo Fujii, Fumie Ono, Kei Sakaguchi

IEEE Inter. Symposium on Personal, Indoor and Mobile Radio Commun. (PIMRC’07)   2007.9

Multiple access interference cancellation and link multiplexing for MIMO mesh network Reviewed

Kei Sakaguchi, Fumie Ono

Proceedings - International Conference on Computer Communications and Networks, ICCCN   1028 - 1033   2007.8

Spatial fading simulator using Cavity-Excited Circular Array(CECA) loaded with phase shifters

Chulgyun Park, Jun-Ichi Takada, Kei Sakaguchi, Takashi Ohira

IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)   5343 - 5346   2007.6

Novel multi-stage transmultiplexing digital down converter for implementation of RFID (ISO18000-3 MODE 2) reader/writer Reviewed

Yuichi Nakagawa, Masahiro Muraguchi, Hideki Kawamura, Kyoji Ohashi, Kei Sakaguchi, Kiyomichi Araki

IEEE Vehicular Technology Conference   2300 - 2304   2007.4

Technical Commitee on Software Radio 2nd-year

Vol. 20   9 - 12   2007

Performance Analysis of Various MIMO Schemes by Using Measured MIMO Propagation Data in Residential Home Environment [Special Publication]

K. Sakaguchi, G. K. Tran, N. D. Dao, K. Araki, J. Takada

European Space Agency, (Special Publication) ESA SP   626 SP   2006.10

A Markov-Kronecker Model for Analysis of Closed-Loop MIMO Systems Reviewed

See Ho Ting, Kei Sakaguchi, Kiyomichi Araki

IEEE COMMUNICATIONS LETTERS   Vol. 10 ( No. 8 )   617 - 619   2006.8

A Robust and Low Complexity Adaptive Algorithm for MIMO Eigenmode Transmission System with Experimental Validation Reviewed

See Ho Ting, Kei Sakaguchi, Kiyomichi Araki

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS   Vol. 5 ( No. 7 )   1775 - 1784   2006.7

Spatial Fading Simulator Using a Cavity-Excited Circular Array (CECA) for Performance Evaluation of Antenna Arrays

C Park, J Takada, K Sakaguchi, T Ohira

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E89-B ( No. 3 )   906 - 913   2006.3

Development of MIMO-SDR Platform and Its Application to Real-Time Channel Measurements

Kei Mizutani, Kei Sakaguchi, Jun-ichi Takada, Kiyomichi Araki

IEICE Trans. Commun.   Vol. E89-B ( No. 12 )   3197 - 3207   2006

Experimental analysis of MIMO-OFDM eigenmode transmission with MMSE interference canceller Reviewed

Yuichi Kakishima, Haidoan Le, See Ho Ting, Kei Sakaguchi, Kiyomichi Araki

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC   2006

Measurement of Time-Varying MIMO Channel for Performance Analysis of Closed-Loop Transmission Reviewed

Kei Mizutani, Kei Sakaguchi, Jun-ichi Takada, Kiyomichi Araki

2006 IEEE 63RD VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6   2854 - 2858   2006

Performance Analysis of MIMO-OFDM Systems using Indoor Wideband MIMO Channel Measurement Data Reviewed

Gia Khanh Tran, Nguyen Dung Dao, Kei Sakaguchi, Kiyomichi Araki, Hiroshi Iwai, Tsutomu Sakata, Koichi Ogawa

2006 IEEE 63RD VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6   2868 - +   2006

IMPLEMENTATION AND EVALUATION OF 4 x 4 MIMO FADING SIMULATOR CONSIDERING ANTENNA CHARACTERISTICS Reviewed

Dao Nguyen Dung, Kei Sakaguchi, Satoshi Suyama, Riichiro Nagareda, Jun-ichi Takada, Hiroshi Suzuki, Kiyomichi Araki, Sintaro Arata, Kazuhiko Kaiga, Sakae Manabe, Toshihiro Yamaguchi, Katsuji Miwa

2006 FIRST INTERNATIONAL CONFERENCE ON COMMUNICATIONS AND ELECTRONICS   472 - +   2006

Performance evaluation of MIMO communication systems in home environment

Asia Pacific Microwave Conf. (APMC’06),   2006

Measurements on area coverage of 5GHZ band MIMO-OFDM system in residential home environment Reviewed

Dung Dao Nguyen, Chua Hai Yeow Eugene, Kei Sakaguchi, Kiyomichi Araki, Hiroshi Iwai, Tsutomu Sakata, Koichi Ogawa

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC   1   246 - 250   2005.9

An Effective IQ Imbalance Compensation Scheme for MIMO-OFDM Communication System Reviewed

Hiroyuki Kamata, Kei Sakaguchi, Kiyomichi Araki

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC   2005.9

Differential Quantization of Eigenmodes for MIMO Eigenmode Transmission Systems Reviewed

SH Ting, K Sakaguchi, K Araki

IEEE COMMUNICATIONS LETTERS   Vol. 9 ( No. 8 )   697 - 699   2005.8

MIMO Channel Capacity in an Indoor Line-of-Sight (LOS) Environment

K Sakaguchi, HYE Chua, K Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E88-B ( No. 7 )   3010 - 3019   2005.7

Hierarchical subgroup power and modulation coding adaptation - A new frequency-space link adaptation scheme in MIMO-OFDM Eigenmode Adaptive Transmission System Reviewed

Le Hai Doan, SeeHo Ting, Kei Sakaguchi, Kiyomichi Araki

IEEE Vehicular Technology Conference   61 ( 1 )   668 - 672   2005.6

A Robust Adaptive MIMO Eigenmode Transmission System with ZF Beamspace Interference Canceller Reviewed

Ting See Ho, Kei Sakaguchi, Kiyomichi Araki

IEEE Vehicular Technology Conference 61(2)   2005.6

On the Practical Performance of VBLAST Reviewed

See Ho Ting, Kei Sakaguchi, Kiyomichi Araki

IEEE Communications Letters   Vol. 8 ( No. 9 )   564 - 566   2004.9

Six-Port Direct Conversion Receiver: Novel Calibration for Multi-Port Nonlinear Circuits

Atsushi Honda, Kei Sakaguchi, Jun-Ichi Takada, Kiyomichi Araki

IEICE Transactions on Electronics   Vol. E87-C ( No. 9 )   1532 - 1539   2004.9

Performance Analysis of MIMO Eigenmode Transmission System Under Realistic Channel and System Conditions

S Ting, K Sakaguchi, K Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E87-B ( No. 8 )   2222 - 2232   2004.8

A robust and low complexity adaptive algorithm for MIMO eigenmode transmission system under practical conditions Reviewed

Ting See Ho, Kei Sakaguchi, Kiyomichi Araki

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC   1   73 - 77   2004.6

Experimental and analytical investigation of MIMO channel capacity in an indoor line-of-sight (LOS) environment Reviewed

Chua Hai Yeow Eugene, Kei Sakaguchi, Kiyomichi Araki

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC   1   295 - 300   2004.1

Initial Measurement on MIMO Eigenmode Communication System

Kei Sakaguchi

IEICE Trans. Commun.   Vol. J87-B ( No. 9 )   1454 - 1466   2004

Spatial Fading Emulator for Base Station Using Cavity-Excited Circular Array Based on ESPAR Antenna Reviewed

Chulgyun Park, Jun-Ichi Takada, Kei Sakaguchi, Takashi Ohira

VTC2004-FALL: 2004 IEEE 60TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-7   256 - 260   2004

Novel Spatial Fading Simulator Using Cavity-Excited Circular Array (CECA) Reviewed

Chulgyun Park, Jun Ichi Takada, Kei Sakaguchi, Takashi Ohira

Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004   679 - 684   2004

ACU and RSM Based Radio Spectrum Management for Realization of Flexible Software Defined Radio World

K Sakaguchi, CF Lam, TD Doan, M Togooch, J Takada, K Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E86-B ( No. 12 )   3417 - 3424   2003.12

Indoor MIMO Channel Measurements for Evaluation of Effectiveness of Array Antenna Configurations Reviewed

Tsutomu Mitsui, Masao Otani, Chua Hai Yeow Eugene, Kei Sakaguchi, Kiyomichi Araki

IEEE Vehicular Technology Conference Fall Orlando, FL   58 ( 1 )   84 - 88   2003.10

Radio Security Module that Enables Global Roaming of SDR Terminal While Complying with Local Radio Regulation Reviewed

Chih Fung Lam, Kei Sakaguchi, Jun-Ichi Takada, Kiyomichi Araki

2003 IEEE 58TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS1-5, PROCEEDINGS   2132 - 2136   2003.10

A Study of Nonlinearity Calibration for Six-Port Direct Conversion Receivers Reviewed

A Honda, Kei Sakaguchi, Jun-Ichi Takada, Kiyomichi Araki

2003 IEEE TOPICAL CONFERENCE ON WIRELESS COMMUNICATION TECHNOLOGY   40 - 41   2003

Comprehensive Calibration for MIMO System Reviewed

K.Kuroda, K.Sakaguchi, J.Takada, K.Araki

The 5th International Symposium on Wireless Personal Multimedia Communications   ( TA8 )   2002.10

Performance of MUSIC and ESPRIT for Joint Estimation of DOA and Angular Spread in Slow Fading Environment Reviewed

JS Jeong, K Sakaguchi, J Takada, K Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E85-B ( No. 5 )   972 - 977   2002.5

A Novel Architecture for MIMO Spatio-Temporal Channel Sounder

K Sakaguchi, J Takada, K Araki

IEICE TRANSACTIONS ON ELECTRONICS   Vol. E85-C ( No. 3 )   436 - 441   2002.3

DOA based Signal Combining Aided Automatic Modulation Recognition/Demodulation for Surveillance System

2002

Digital Pre-Distortion Linearizer for a Realization of automatic Calibration Unit

Tien Dzung DOAN, Chih Fung LAM, Kei SAKAGUCHI, Jun-ichi TAKADA, Kiyomichi ARAKI

2002 Software Defined Radio Technical Conference   2002

FDM based MIMO Spatio-Temporal Channel Sounder Reviewed

K.Sakaguchi, K.Kuroda, J.Takada, K.Araki

The 5th International Symposium on Wireless Personal Multimedia Communications   2002

Optimal Signal Combining Based on DOA and Angular Spread Using Extended Array Mode Vector

JS Jeong, K Sakaguchi, J Takada, K Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E84-B ( No. 11 )   3023 - 3032   2001.11

Generalization of MUSIC using Extended Array Mode Vector for Joint Estimation of Instantaneous DOA and Angular Spread

Jung-Sik JEONG, Kei SAKAGUCHI, Kiyomichi ARAKI, Jun-ichi TAKADA

IEICE Transaction on Communication   Vol. E84-B ( No. 7 )   1781 - 1789   2001.7

Performance of Signal Combining Based on DOA and Angular Spread in Multiple Scattering Environments

J.S.Jeong, K.Sakaguchi, J.Takada, K.Araki

ISCIT2001   477 - 480   2001

Development of High Resolution MIMO Channel Sounder for the Advanced Modeling of Wireless Channels Reviewed

J Takada, K Sakaguchi, K Araki

APMC 2001: ASIA-PACIFIC MICROWAVE CONFERENCE, VOLS 1-3, PROCEEDINGS   563 - 568   2001

An Optimization of Smoothing Preprocessing for Correlated Signal Parameter Estimation

K Sakaguchi, J Takada, K Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E83-B ( No. 9 )   2117 - 2123   2000.9

Influence of the Model Order Estimation Error in the ESPRIT Based High Resolution Techniques

K Sakaguchi, J Takada, K Araki

IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E82-B ( No. 3 )   561 - 563   1999.3

On Measuring the Multipath Parameters by Using Superresolution Algorithms - an Optimization of Smoothing Preprocessing Reviewed

Kei Sakaguchi, Jun ichi Takada, Kiyomichi Araki

IEEE Vehicular Technology Conference (IEEE Vehicular Technology Conference)   4 ( 50 )   1993 - 1997   1999

On Measuring the Delay Profile and the Directions of Arrival by Using Super Resolution Algorithm Reviewed

Kei Sakaguchi, Jun-Ichi Takada, Kiyomichi Araki

48TH IEEE VEHICULAR TECHNOLOGY CONFERENCE,   154 - 158   1998.5

A Superresolution Spatio-Temporal Channel Sounder for Future Microwave Mobile Communication System Development Reviewed

Jun-Ichi Takada, Kei Sakaguchi, Satoshi Suyama, Kiyomichi Araki, Masanobu Hirose, Masayasu Miyake

APCCAS '98 - IEEE ASIA-PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS   101 - 104   1998

A Study on Digital Twin-Based Blind Spot Visualization and Real-Time Hazard Alerts using AR Glasses

Kaito Morita, Yu Tao, Sakaguchi Kei, Science Tokyo

IEICE Technical Report   Vol. 125 ( No. 163 )   87 - 92   2025.8

A Blockage-Aware Multi-Hop mmWave V2X Framework Aided by Digital Twin

Supat Roongpraiwan, Zongdian Li, Tao Yu, Kei Sakaguchi, Science Tokyo

IEICE Technical Report   Vol. 125 ( No. 88 )   80 - 85   2025.6

Vehicle Scheduling Optimization for Delivery Service Using AoI-Aware Mobility Digital Twin

Kazuma Nonomura, Wang Kui, Yu Tao, Kei Sakaguchi

Vol. 24   57 - 62   2024.7

Design and Implementation of off-grid Smart Agriculture System Using LEO Satellite Communications and Photovoltaics

Shieru Otsuka, Kuniaki Uto, Hideharu Takahashi, Kei Sakaguchi, Tokyo Tech, Tadashi Kawamoto

vol.124 ( no.22 )   47 - 51   2024.5

デジタルツインと機械学習を用いた協働ロボットシステム

Roongpraiwan Supa, 李 宗典, 阪口 啓

電子情報通信学会 総合大会, 信学総大, Mar. 2024   2024.3

[Invited Lecture] Beyond 5G Open RAN Platform through Cross-Domain Collaboration

Jin Nakazato, of Toky, Kazuki Maruta (Tokyo, Univ. of Science, Gia Khanh Tran, Naoya Okubo, Kei Sakaguchi, Ti

IEICE Technical Report   123 ( 436(SRW2023 45-79) )   33 - 38   2024.3

Design and Implementation of an Advanced Intersection System to Ensure Safety in Automated Society

Daiki Matsuo, Yu Tao, Kei Sakaguchi

IEICE Technical Report   vol.123 ( no.380(ITS), no.381(IE) )   62 - 67   2024.2

Internet of Federated Digital Twin to Support Cooperative Use of Distributed Computing Resources

Masaru Takenaka, Hiroki Matsuo, Tao Yu, Kei Sakaguchi

vol.123 ( ITS-380,IE-381 )   pp.56-61(ITS), pp.56-61(IE), - pp.56-61(ITS), pp.56-61(IE),   2024.2

Delivery System Optimization for Multiple Autonomous Vehicles: A Digital Twin-Based Method and Implementation

IECE Technical Report   vol.123 ( RCS-76 )   69 - 74   2023.6

AR-based Radio Propagation Visualization System for mmWave Cellular Systems Using Analog Relay Stations

( 2023 )   2023.6

Smart Mobility Digital Twin for Automated Driving: Design and Implementation

Kui Wang, Zongdian Li, Tao Yu, Kei Sakaguchi

IECE Technical Report   vol.123 ( RCS-76 )   63 - 68   2023.6

Design, Development, and Evaluation of a Disaster Rescue Support Multi-UAV System Operating at 5.7GHz Band

Kento Kajiwara, Yu Tao, Kei Sakaguchi

IECE Technical Report (RCS2022-270)   Vol. 122 ( No. 399 )   136 - 141   2023.3

Design of AR-based mmW Radio Propagation Visualization System

Naoya Okubo, Keishi Tokugawa, Jin Nakazato, Kei Sakaguchi

電子情報通信学会大会講演論文集(CD-ROM)   2023   2023.3

“[Invited Lecture] Please Use mmWave in a Right Way in 5G and 6G”,

Kei Sakaguchi

2023.3

特徴量圧縮伝送を用いた低遅延AI処理に関する一検討

山﨑周, 高良雄一郎, Gunhee Cho, Tao Yu, uying Lei, 阪口 啓

電子情報通信学会総合大会   2023.3

Building an SDVN Framework for RSU-Centric Cooperative Perception with Heterogeneous V2X

Li, Zongdian, Yu Tao, Taisei Suzuki, Kei Sakaguchi

IECE Technical Report(RCS2022-275)   Vol. 122 ( No. 399 )   161 - 166   2023.3

Evolution of B5G/6G Empowered by Edge Computing towards Super Smart Society

Kei SAKAGUCHI Jin, NAKAZATO Keiichi, KUBOTA Eisuke FUKUDA Mitsuhiro, KUCHITSU Soh, MASUKO

IEICE Transactions on Communications   Vol. 106 ( No. 2 )   129 - 135   2023.1

AR-based Radio Propagation Visualization System to Assist Area Deployment of mmWave B5G

Naoya Okubo, Jin Nakazato, Kei Sakaguchi

IEICE Transactions Online(RCS2023 1-13)   Vol. 123 ( No.3 )   44 - 49   2023

Vehicle Route Detection Network Using Continuous Roadside Units

Gunhee Cho, Tao Yu, Jin Nakazato, Kei Sakaguchi, TokyoTech

電子情報通信学会技術研究報告(Web)   122 ( 307(WBS2022 34-64) )   2022.12

Design and Development of mmWave Area Coverage with Analog Relay Stations

Keishi, Tokugawa, Jin Nakazato, Keiichi Kubota, Kei Sakaguchi, Tsuyoshi Itagaki, Masahiko Nanri, Mitsuhiro Kuchitsu, Soh Masuko

IECE Technical Report （RCS2022-190）   Vol. 122 ( No. 311 )   31 - 36   2022.12

Design of Advanced Intersection Systems Utilizing V2X in Automated Society

Hiroki Matsuo, Yu Tao, Kei Sakaguchi

IECE Technical Report   Vol.122 ( No. 308 )   135 - 139   2022.12

Design and Development of mmWave Area Coverage with Analog Relay Stations

Keishi Tokugawa, Jin Nakazato, Keiichi Kubota, Kei Sakaguchi, Tokyo Tech, Tsuyoshi Itagaki, Masahiko Nanri, Mitsuhiro Kuchitsu, Soh Masuko (R.

電子情報通信学会技術研究報告(Web)   122 ( 311(RCS2022 185-207) )   2022.12

ミリ波UAV無線局ネットワークの低消費電力化に関する検討

山本蒼汰, タンザカン, 阪口啓

電子情報通信学会2022年ソサイエティ大会, Sept. 2022   2022.9

[Invited Talk] Evolution of 5G toward Super Smart Society Invited

Kei Sakaguchi

2022.7

Distributed and Scalable Radio Resource Management for mmWave V2V Relays towards Safe Automated Driving.

Yue Yin, Tao Yu, Kazuki Maruta, Kei Sakaguchi

IECE Technical Report(RCS2021-297)   Vol.121 ( No. 391 )   229 - 234   2022.3

AF Relay Station Deployment Method Considering Uniform Coverage and Blocking in MmWave Cellular Systems

Takumi Yoneda, Kei Sakaguchi, Masashi Iwabuchi, Tomoki Murakami

IECE Technical Report   Vol. 121 ( No. 391 )   189 - 194   2022.3

Proof-of-Concept of a Micro-Service Distributed Optimization on Edge Computing over Beyond 5G

Jin Nakazato, Mitsuhiro Kuchitsu, Masahiko Nanri, Soh Masuko, Keishi Tokugawa, Keiichi Kubota, Kazuki Maruta, Kei Sakaguchi

2022.3

Image Size Reduction by Edge Computing for Low Latency Relay Transmission

Weiran Yuan, Kazuki Maruta, Yu Nakayama, Daisuke Hisano, Kei Sakaguchi

CQ2021-5   vol.121 ( CQ-15 )   24 - 28   2021.5

Super Smart Society created by 5G -Union of Open Innovation & Open Education

Kei Sakaguchi

IEICE General Conference, Mar. 2021. [Keynote Speech]   2021.3

Design of MEC 5G and Beyond Cellular Networks -- Viewpoint from Local Telecom Operators and Cloud Owners --

Jin Nakazato, Zongdian Li, Kazuyuki Maruta, Kei Sakaguchi

IECE Technical Report(IEICE-120)   Vol. 120 ( No. 404 )   55 - 60   2021.3

Context-Based MEC Platform for Augmented-Reality Services in 5G Networks

Yue Wang, Tao Yu, Kei Sakaguchi

IECE Technical Report   Vol. 120 ( No. 404 )   49 - 54   2021.3

[Invited Lecture] Towards Super Smart Society using Beyond 5G

Kei Sakaguchi, Kazuki Maruta, Eisuke Fukuda

IECE Technical Report   vol. 120 ( no. 405 )   16 - 16   2021.3

動的ユーザ分布に対するUAV基地局の配置手法に関する検討,

小笹 聖典, タン ザ カン, 阪口 啓

電子情報通信学会2021年総合大会, Mar. 2021.   2021.3

[Invited Lecture] A Study on mmWave Multi-hop Analog Relay Single-User MIMO

Takumi Yoneda, Kei Sakaguchi, Masashi Iwabuchi, Tomoki Murakami,

IECE Technical Report   Vol. 120 ( No. 406 )   110 - 115   2021.3

Multi-Drone Full-Duplex Communication Systems for Joint Video Transmission and Flight Control

Shunya Imada, Tao Yu, Kiyomichi Araki, Kei Sakaguchi, Tokyo Tech

IECE Technical Report   Vol. 120 ( No. 404 )   61 - 66   2021.3

無人移動体画像伝送システムの周波数帯における4K映像リアルタイム無線伝送システムの試作

敷地辰也, 茂木智広, 満井 勉, 矢島 武, 黒柳伸之, 相田大介, 黒川大輝, 阪口 啓, 荒木純道, タン ザ カン, ユタオ, 羽田靖史

電子情報通信学会CQ研究会, Jan. 2021.   2021.1

UAVによる動的ミリ波メッシュバックホールの設計

平田 孝佑, タン ザ カン, 阪口 啓

電子情報通信学会SR研究会, Nov. 2020   2020.11

UAV を活用した電波発信源の屋外位置推定のセンサ配置に関する検討

田中翔馬, タン ザカン, 阪口啓

電子情報通信学会2020年ソサイエティ大会, Sept. 2020   2020.9

UAV-based Wireless Surveillance System enabled by High Resolution Video Transmission

Tao Yu, Shunya Imada, Kiyomichi Araki, Kei Sakaguchi

IECE Technical Report   Vol. 120 ( No. 130 )   1 - 6   2020.8

Design of Millimeter-wave UAV Base Station for Access Link

Masanori Ozasa, Jin Nakazato, Kosuke Hirata, Khanh Tran Gia, Kei Sakaguchi

IECE Technical Report   Vol. 120 ( No. 74 )   49 - 54   2020.6

Resource Allocation Based on Multi-Armed Bandits for Dynamic Spectrum Access System

Amr Amrallah, Ehab Mahmoud Mohamed, Gia Khanh Tran, Kei Sakaguchi

IEICE Technical Report   Vol. 119 ( No. 449 )   87 - 92   2020.3

災害時におけるミリ波を用いた UAV 基地局の位置配置

小笹 正聖, 平田 孝佑, 阪口 啓, タン ザ カン

電子情報通信学会2020年総合大会, Mar. 2020   2020.3

Study on Full Duplex 4k Video Transmission Systems by Multi-Drones in 5.7GHz band

Shunya Imada, Yoshitaka takaku, Kiyomichi Araki, Yu Tao, Khanh Gia Tran, Kei Sakaguch, Tomohiro Mogi, Takeshi Yajima

IECE Technical Report   Vol. 119 ( No. 448 )   105 - 110   2020.3

5.7GHz帯を用いたマルチドローン全二重4K映像伝送システムに関する検討

今田舜也, 高久淑考, 荒木純道, ユ タオ, タン ザ カン, 阪口啓, 茂木智弘, 矢島武

移動通信ワークショップ2020, Mar. 2020.   2020.3

Design of MEC 5G Cellular Networks: Viewpoints from Telecom Operators and Backhaul Owners

Jin Nakazato, Makoto Nakamura, Tao Yu, Zongdian Li, Gia Khanh Tran, Kei Sakaguchi

IECE Technical Report   Vol.119 ( No. 345 )   83 - 88   2019.12

[Poster Presentation] Outdoor Localization of RF Emitter Using UAV-based Sensors

Shoma Tanaka, Khanh Tran Gia, Kei Sakaguchi

vol.119 ( no.262 )   2019.11

ＵＡＶセンサを用いた電波発信源の屋外位置推定の検討

田中翔馬, タン ザカン, 阪口 啓

電子情報通信学会2019年ソサイエティ大会, Sept. 2019.   2019.9

ミリ波エッジクラウドでのSDNによるバックホール制御の特性評価,

中村誠, 西内大晃, Konstantin Koslowski, Julian Daube, Ricardo Santos, タン ザカン, 阪口 啓

電子情報通信学会2019年ソサイエティ大会, Sept. 2019.   2019.9

Interference Management for Millimeter-wave Mesh Backhaul Networks

Makoto Nakamura, Gia Khanh Tran, Kei Sakaguchi

2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019   2019.2

Millimeter-wave×Heterogeneous Network=5G

Kei Sakaguchi

Journal of IEICE   Vol. 101 ( No. 11 )   1111 - 1116   2018.11

[Panel Discussion] Multi-frequency Radio Map Database Construction and its Application in Positioning

Azril HANIZ, Gia Khanh TRAN, Kei SAKAGUCHI, Jun-ichi TAKADA, Toshihiro YAMAGUCHI, Shintaro ARATA

IEICE Society Conference   2018.9

Performance Evaluation for Millimeter-wave Backhaul and Edge Cloud Networks

Gia Khanh Tran, Ricardo Santos, Konstantin Koslowski, Hiroaki Nishiuchi, Makoto Nakamura, Kei Sakaguchi

Multiple Innovative Kenkyu-kai Association for Wireless Communications 2018   2018.9

[Invited Lecture] Machine Learning Based Regression of Fingerprint Database for Unknown Emitter Localization, Invited

Azril HANIZ, Gia Khanh TRAN, Kei SAKAGUCHI, Jun-ichi TAKADA, Toshihiro YAMAGUCHI, Tsutomu Mitsui, Shintaro ARATA

Vol. 117 ( No. 457 )   81 - 88   2018.8

[Invited] Localization of Unknown Radios in Urban Enviroments -- On-campus Experiment Results --,

2018.8

Prefetching Algorithm for 5G mmWave HetNet under Backhaul Constraint

Hiroaki NISHIUCHI, Gia Khanh TRAN, Kei SAKAGUCHI

IEICE General Conference 2018   2018.3

ミリ波メッシュバックホールネットワークにおける干渉低減法に関する研究の一検討

中村真, タン ザカン, 阪口 啓

電子情報通信学会総合大会2018, Mar. 2018.   2018.3

A Study on Spatial Averaging of RSS Fingerprints for Localization of Unknown Radios

Azril HANIZ, Gia Khanh TRAN, Kei SAKAGUCHI, Jun-ichi TAKADA, Toshihiro YAMAGUCHI, Shintaro ARATA

IEICE Society Conference   2017.9

[Invited] A Lighting Control System Using Battery-less Wireless Human Detection Sensor Networks

Tao YU, Gia Khanh TRAN, Kei SAKAGUCHI

IEICE Society Conference   2017.9

[Technology exhibit] 5G-MiEdge -- Millimeter-wave Edge Cloud as an Enabler for 5G Ecosystem --

Konstantin Koslowski, Jens Pilz, Richard Weiler, Wilhelm Keusgen, Wilhelm Keusgen, Thomas Haustein, Gia Khanh Tran, Hiroaki Ogawa, Hiroaki Nishiuchi, Takashi Tomura, Kei Sakaguchi

IECE Technical Report   vol.117 ( SR-56 )   55 - 55   2017.5

Scheduling of Prefetching for 5G Cellular Networks using Mobile Edge Cloud

Hiroaki Nishiuchi, Gia Khanh Tran, Tetsuki Taniguchi, Kiyomichi Araki, Kei Sakaguchi

IEICE technical report   Vol. 116 ( No. SR-480 )   21 - 24   2017.3

Preliminary Statistical Analysis of Localization Error in the Presence of Spatial Correlation

Azril HANIZ, Gia Khanh TRAN, Kei SAKAGUCHI, Jun-ichi TAKADA, Toshihiro YAMAGUCHI, Shintaro ARATA

IEICE General Conference   2017.3

［ポスター講演］Wi-Fi位置指紋法と歩行者デッドレコニングを用いた屋内測位システム

小坂亮太, タン ザカン, 阪口啓, 荒木純道

CQ研究会, 信学技法, 電子情報通信学会, Vol. 2016-10-CQ, Oct. 2016.   2016.10

ミリ波を活用するヘテロジニアスセルラネットワークの研究開発

阪口啓, 三瓶政一, 衣斐信介, 荒木純道, タンザカン, 山口明, 難波忍, 林高弘, 縣亮, 末柄恭宏, 大関武雄, 森脇和也, 彭海蘭, 外山隆行, 櫻井利昭, 岡坂昌蔵, 牟田竜二, 齋藤昭裕, 湯田泰明, 安達尚季

ICTイノベーションフォーラム2016   2016.10

Optimization of Sensor Layout for Localization using Signal Strength Difference Fingerprints

Azril HANIZ, Gia Khanh TRAN, Kei SAKAGUCHI, Jun-ichi TAKADA, Toshihiro YAMAGUCHI, Tsutomu MITSUI, Shintaro ARATA

IEICE Society Conference   2016.9

Cell Association Method with QoS Consideration for Heterogeneous Networks

Hidekazu Shimodaira, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEICE Society Conference   2016.9

A Study on the Optimal Combination of Cooperative Transmission Scheme and Frequency Band for 5G

Hidekazu Shimodaira, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEICE Technical Report   116 ( 149 )   97 - 102   2016.7

Joint RAN/Backhaul Optimization for Millimeter-wave 5G

Hiroaki Ogawa, Hidekazu Shimodaira, Gia Khanh Tra, Kei Sakaguchi, Thomas Haustein

IECE Technical Report   Vol. 116 ( No. RCS-110 )   267 - 272   2016.6

[Poster Presentation] Sub-optimal and Low complexity Signal Detection method based on Power Spectrum under Noise Uncertainty

Hiroyuki Kamata, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

SmartCom2016   Vol. 2016-5-SR   2016.5

Dynamic ON/OFF of Smallcell BS in C-RAN based 5G HetNet Supporting User's Satisfaction

Gia Khanh Tran, Hidekazu Shimodaira, Kei Sakaguchi, Kiyomichi Araki

IEICE technical report(RCS2016-2)   116 ( 11 )   7 - 12   2016.4

Dynamic Tracking of Unknown Emitters in Urban Environments using Particle Filters

HANIZ Azril, TRAN Gia Khanh, SAITO Kentaro, SAKAGUCHI Kei, TAKADA Jun-ichi, HAYASHI Daisuke, YAMAGUCHI Toshihiro, ARATA Shintaro

IECE Technical Report   Vol. 116 ( No. 29 )   83 - 90   2016.4

[Invited Lecture] Fingerprint-based Localization of Unknown Radio Emitters in Non Line-of-Sight Environments Invited Reviewed

Azril HANIZ, Gia Khanh TRAN, Kentaro SAITO, Kei SAKAGUCHI, Jun-ichi TAKADA, Daisuke HAYASHI, Toshihiro YAMAGUCHI, Shintaro ARATA

IEICE Mobile Communication Workshop 2016, Tokyo Japan   Vol. 2016-3-SR-RCS-CCS-SRW   2016.3

Indoor Localization System based on Multiple AP and its Experimental Investigation

Ryota Kosaka, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki

IEICE Technical Report   115 ( 473 )   145 - 150   2016.3

［依頼講演］ミリ波OFDMシステムにおける簡易サブキャリア間干渉補償スキーム 〜 チャネル推定法を考慮したPER評価

Yuyuan Chang・Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki(Tokyo Tech

IEICE Technical Report   115 ( 473 )   151 - 156   2016.3

Fingerprint-based Localization of Unknown Radio Emitters in Non Line-of-Sight Environments (スマート無線) -- (移動通信ワークショップ)

Azril Haniz, Tran Gia Khanh, 齋藤 健太郎, 阪口 啓, 高田 潤一, HAYASHI Daisuke, 山口 敏浩, ARATA Shintaro

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報, 電子情報通信学会, Vol. 115, No. 473, Feb. 2016.   2016.2

[InvitedLecture]User Scheduling forMillimeterWave MU-MIMOin SmallConferenceRoom—Evaluationwith3-sectorAccessPointModel andProportionalFairness— Reviewed

CHANG Yuyuan, HAZE Sayako, Gia Khanh TRAN, SAKAGUCHI Kei, ARAKI Kiyomichi, FUKAWA Kazuhiko

ITE Technical Report   40 ( 0 )   43 - 46   2016

[Invited Lecture] 5G from Tokyo Institute of Technology Point of View -- For Realization of Millimeter-wave Heterogeneous Networks -- Invited

Kei Sakaguchi, Gia Khanh Tran, Kiyomichi Araki, Makoto Ando, Jiro Hirokawa, Kazuhiko Fukawa, Yuyuan Chang, Jun-ichi Takada, Kentaro Saito, Akira Matsuzawa, Kenichi Okada, Masaya Miyahara, Tokyo Tech

Technical report of IEICE. RCS   Vol.115 ( No. 233 )   83 - 88   2015.10