Channel Ranking based Spread Code Optimization for Visible Light Communication OFDM-IDMA Systems. - Kazushi Shimada; Mitsuki Takahashi; Kazuki Maruta; Chang-Jun Ahn (APCC, 2019)

Pilot Signal Design for Mixed Numerology NOMA Transmission. - Hayato Kanke; Yukitoshi Sanada; Hiroki Matsuda; Mitsuki Takahashi; Ryota Kimura (VTC Fall, 2022)