Naoya Okubo, Keishi Tokugawa, Jin Nakazato, Suwen Ke, Yiming Chen, Gia Khanh Tran, Kei Sakaguchi, Mitsuhiro Kuchitsu, Tsuyoshi Itagaki. Field Evaluation of 5G mmWave Relays in Various Topologies: NLOS Coverage Enhancement and Tolerance Against Blockage. IEEE Access. 2025. Vol. 11
Kazuma Nonomura, Kui Wang, Zongdian Li, Tao Yu, Kei Sakaguchi. Digital Twin-Empowered Cooperative Autonomous Car-sharing Services: Proof-of-Concept. The paper was accepted by the 36th IEEE Intelligent Vehicles Symposium (IEEE IV 2025). 2025
Cheonyong Kim, Walid Saad, Jonghun Han, Tao Yu, Kei Sakaguchi, Minchae Jung. Real-Time Task Scheduling With Fairness in Digital Twin Systems. IEEE Internet of Things Journal. 2025. Vol. 12. Issue. 7. 7846-7862
Suwen Ke, Kei Sakaguchi, Gia Khanh Tran. Resilient mmWave Multi-Hop Multi-User Massive Relay MIMO for 6G Networks. 2025 IEEE Wireless Communications and Networking Conference (WCNC). 2025
6G AI-Native O-RAN and Ookayama 5G/6G Test Field
(Korea-Japan Joint Workshop on 6G Technologies, Korea Communication Society Summer Conference 2024 2024)
Smart Mobility Changed by 5G/6G [Keynote speakers]
(The 16th IFToMM World Congress (WC2023, Tokyo Japan) 2023)
Further Evolution of 5G towards Super Smart Society [Special Technical Session Invited Talk]
(IEEE 41st International Conference on Consumer Electronics(ICCE 2023, Las Vegas USA) 2023)
Roles of 5G/6G and Smart Mobiity R&E Field towards Super Smart Society [Invited]
(IEEE 8th World Forum on Internet of Things (WF-IoT) 2022 Yokohama Japan 2022)
5G and 6G to Realize Super Smart Society
(World Electronics Forum(WEF2022) Grenoble, France 2022)