Performance Analysis of Uplink and Downlink NOMA System in Inter-Satellite Networks. - Wataru Tachikawa; Kazutoshi Yoshii; Shigeru Shimamoto (ICC, 2021)

NOMA based Terahertz Communication for High Altitude Platform System. - Mao Wang; Wataru Tachikawa; Kazutoshi Yoshii; Shigeru Shimamoto (VTC Fall, 2022)

Applying PDMA for Ground-HAPS Uplink Network with Hybrid FSO/RF Communication. - Wataru Tachikawa; Akihito Suetsuna; Mao Wang; Kazutoshi Yoshii; Shigeru Shimamoto (WCNC, 2023)