Beam-Space Time Coding Exploiting the Overlap among Beampatterns. - Kouji Ishii; Giuseppe Abreu; Ryuji Kohno (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

Space-Time-Frequency Turbo Code over Time-Varying and Frequency-Selective Fading Channel. - Kouji Ishii; Ryuji Kohno (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)