Improvement of BPSK space-time turbo code with full antenna diversity. - Chikara Kojima; Takahiko Saba (ICC, 2002)

Improvement of BPSK Space-Time Turbo Code with Full Rate and Full Antenna Diversity. - Chikara Kojima; Takahiko Saba (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2002)

Access Point Initiated Approach for Interfered Node Detection in 802.11 WLANs. - Hiroshi Fujita; Kazuyuki Ozaki; Yun Wen; Yasuharu Amezawa; Chikara Kojima; Hideyuki Kobayashi (VTC Spring, 2015)

Robust beamforming method for SDMA with interleaved subarray hybrid beamforming. - Shunsuke Fujio; Chikara Kojima; Toshihiro Shimura; Ken-ichi Nishikawa; Kazuyuki Ozaki; Zhengyi Li 001; Atsushi Honda; Shohei Ishikawa; Takenori Ohshima; Hiroshi Ashida; Masahiko Shimizu; Yoji Ohashi (PIMRC, 2016)

System validation of millimeter-wave beam multiplexing with interleaved hybrid beam-forming antennas. - Atsushi Honda; Shohei Ishikawa; Kazuyuki Ozaki; Shunsuke Fujio; Ken-ichi Nishikawa; Zhengyi Li 001; Chikara Kojima; Toshihiro Shimura; Hiroshi Ashida; Takenori Ohshima; Masahiko Shimizu; Yoji Ohashi (PIMRC, 2016)

Millimeter-wave beam multiplexing method using hybrid beamforming. - Masahiko Shimizu; Atsushi Honda; Shohei Ishikawa; Kazuyuki Ozaki; Shunsuke Fujio; Ken-ichi Nishikawa; Zhengyi Li 001; Chikara Kojima; Toshihiro Shimura; Hiroshi Ashida; Takenori Ohshima; Yoji Ohashi; et al. (PIMRC, 2016)

Novel two-step beam search method for multi user millimeter-wave communication. - Chikara Kojima; Shunsuke Fujio; Kenichi Nishikawa; Kazuyuki Ozaki; Zhengyi Li 001; Atsushi Honda; Shohei Ishikawa; Takenori Ohshima; Hiroshi Ashida; Toshihiro Shimura; Masahiko Shimizu; Yoji Ohashi (PIMRC, 2017)

Multi-user mmWave communication by interleaved beamforming with inter-subarray coding. - Zhengyi Li 001; Atsushi Honda; Toshihiro Shimura; Kazuyuki Ozaki; Shohei Ishikawa; Chikara Kojima; Shunsuke Fujio; Ken-ichi Nishikawa; Hiroshi Ashida; Takenori Ohshima; Masahiko Shimizu; Yoji Ohashi (PIMRC, 2017)