Field evaluation of UHF radio propagation for an ITS safety system in an urban environment. - Seii Sai; Eiji Niwa; Kota Mase; Mitsuhiro Nishibori; Junji Inoue; Masashi Obuchi; Tomohisa Harada; Harumi Ito; Kansei Mizutani; Masafumi Kizu (IEEE Commun. Mag., 2009)

Quality analysis of CSMA/CA communications in inter-vehicle communication services. - Satoshi Imai; Kazumasa Ushiki; Nobutsugu Fujino; Mamoru Machida; Masayoshi Moriya; Seii Sai (ICUIMC, 2010)

Comparisons of Non-line-of-Sight Inter-Vehicle Communications in the urban environment between 5.9GHz and 700MHz bands (Poster). - Seii Sai; Takuro Oshida; Ryokichi Onishi; Akira Yoshioka; Hideaki Tanaka (VNC, 2012)

Current and Future ITS. - Seii Sai; Onur Altintas; John Kenney; Hideaki Tanaka; Yuji Inoue (IEICE Trans. Inf. Syst., 2013)