Demo: A field test of measurement-based spectrum database using probing vehicles. - Koya Sato; Takashi Kosugi; Takeo Fujii (VNC, 2014)

Spectrum sharing method to form bundle of white space in cognitive radio. - Takashi Kosugi; Takeo Fujii (CCNC, 2015)

Efficient spectrum sharing with avoiding spatial fragmentation of white space. - Takashi Kosugi; Takeo Fujii (ICT Express, 2015)