Learning-Based, Distributed Spectrum Observation System for Dynamic Spectrum Sharing in the 5G Era and Beyond. - Masaki Kitsunezuka; Kenta Tsukamoto; Jun Sakai; Taichi Ohtsuji; Kazuaki Kunihiro (IEICE Trans. Commun., 2019)

Indoor Self-Localization Using Multiple Magnetic Sensors. - Isaku Nagai; Jun Sakai; Keigo Watanabe (J. Robotics Mechatronics, 2019)

Metropolitan Field Trial of Fingerprint-based Localization Utilizing Residual of Received-Signal-Strength. - Jun Sakai; Takafumi Yanaga; Kohta Sugaya; Shinya Kurumatani (VTC Spring, 2020)