"Kei SAKAGUCHI,?Ryuichi FUKATSU,?Tao YU,?Eisuke FUKUDA,?Kim MAHLER,?Robert HEATH,?Takeo FUJII,?Kazuaki TAKAHASHI,?Alexey KHORYAEV,?Satoshi NAGATA,?Takayuki SHIMIZU","[Invited]Towards mmwave V2X in 5G and beyond to support automated driving",,"IEICE Transactions on Communications",,"Volume E104.B","Issue 6","Page 587-603",2021,June "Kenta Umebayashi,Takeo Fujii,Shinsuke Ibi,Osamu Takyu,Gia Khanh Tran,Koji Yamamoto,Keiichi Mizutani,Daisuke Anzai,Makoto Taromaru","Report on the SmartCom2016",,"IEICE Communications Society ? GLOBAL NEWSLETTER","IEICE","Vol. 40","No. 3",,2016,Sept. "Takeo Fujii,Hiroshi Harada,Osamu Takyu,Hiroyuki Shiba,Keiichi Mizutani,Gia Khanh Tran,Hirokazu Sawada,Kenta Umebayashi,Kentaro Ishizu","Report on the SmartCom2015",,"IEICE Communications Society ? GLOBAL NEWSLETTER","IEICE","Vol. 40","No. 1",,2016,Mar. "Yukitsuna Furuya,Jun-ichi Takada,Kazuhiko Fukawa,Nobuo Nakajima,Takeo Fujii,Yoshiyuki Takeda","Radio spectrum vision in 50 years from now: Consideration on long term spectrum refarming mainly below 3 GHz","IEEE Conference on Standards for Communications and Networking",,,,,,2016,Jan. "Takeo Fujii,Kei Sakaguchi","Cognitive MIMO mesh networks for spectrum sharing,",,"ICST CrownCom2008",,,,,2008,May "Hiromasa Uchiyama,Kenta Umebayashi,Takeo Fujii,F.Ono,K.Sakaguchi,Yukihiro Kamiya,Yasuo Suzuki","Study on soft decision based cooperative sensing for cognitive radio networks",,"IEICE Transaction on Communications",,"vol. E91-B","no. 1","pp. 95-101",2008,Jan.