Evaluation of a Japanese CFG Derived from a Syntactically Annotated Corpus with Respect to Dependency Measures. - Tomoya Noro; Chimato Koike; Taiichi Hashimoto; Takenobu Tokunaga; Hozumi Tanaka (ALR/ALRN@IJCNLP, 2005)

MLD-Based MU-MIMO Detection Scheme for LTE Downlink. - Chimato Koike; Daisuke Ogawa; Takashi Seyama; Takashi Dateki (VTC Spring, 2012)

A Low Complexity PMI/RI Selection Scheme in LTE-A Systems. - Daisuke Ogawa; Chimato Koike; Takashi Seyama; Takashi Dateki (VTC Spring, 2013)

Energy-efficient hybrid beamforming in millimeter-wave communications using FDMA. - Shunsuke Fujio; Chimato Koike; Dai Kimura (PIMRC, 2015)

A Novel Beam Search Method in Millimeter-Wave Access Networks for 5G Mobile Communications. - Shunsuke Fujio; Chimato Koike; Dai Kimura (IEICE Trans. Commun., 2015)