Improvement of coverage probability by subband scheme in CDMA macro-micro cellular system. - Kohji Takeo (PIMRC, 1996)

Multi-Rate Traffic Accommodation Using Multicode Transmission in CDMA Cellular Systems. - Kohji Takeo; Shinichi Sato; Akira Ogawa (ICC (1), 2000)

Time slot assignment using cell partitioning in CDMA cellular systems. - Kohji Takeo (ICC, 2001)

Downlink performance of cell-partitioned CDMA cellular systems with time-slot assignment. - Kohji Takeo (PIMRC, 2002)