A 120 Mbit/s Coded 8PSK Modem With Soft-Decision Viterbi Decoder. - Tadashi Fujino; Y. Moritani; M. Miyake; Keishi Murakami; Y. Sakato; H. Shiino (ICC, 1986)

A Design Of An Adaptive Decision Feedback Equalizer For Digital Mobile Communication Systems. - Keishi Murakami; Koji Ueda; Michiaki Takano; Tadashi Fujino (PIMRC, 1991)

Adaptive equalization scheme in dual diversity reception for digital mobile communication systems. - Koji Ueda; Keishi Murakami; Tadashi Fujino (PIMRC, 1994)

An adaptive maximum-likelihood sequence estimator for fast time-varying intersymbol interference channels. - Hiroshi Kubo; Keishi Murakami; Tadashi Fujino (IEEE Trans. Commun., 1994)

Adaptive Maximum-Likelihood Sequence Estimation by Means of Combined Equalization and Decoding in Fading Environments. - Hiroshi Kubo; Keishi Murakami; Tadashi Fujino (IEEE J. Sel. Areas Commun., 1995)

Comparison on maximum-likelihood sequence estimation schemes incorporating carrier phase estimation. - Hiroshi Kubo; Keishi Murakami; Tadashi Fujino (IEEE Trans. Commun., 1999)

Performance of combined ARQ with SR and GBN for broadband wireless systems on a 40 GHz band radio channel. - Noriyuki Fukui; Akihiro Shibuya; Keishi Murakami (IEEE Commun. Mag., 2001)

A delta-sigma baseband phase detector realizing AGC-free PSK and FSK receivers. - Ryoji Hayashi; Fumio Ishizu; Keishi Murakami (PIMRC, 2002)

Performance Improvement for MIMO Communication Systems Employing Per Transmit Antenna Differential Encoding (PADE). - Hiroshi Kubo; Masatsugu Higashinaka; Akihiro Okazaki; Keishi Murakami (PIMRC, 2005)

A Multiple-Symbol Differential Detection Based on Channel Prediction for Fast Time-Varying Fading. - Hiroshi Kubo; Akihiro Okazaki; Kazuo Tanada; Bertrand Penther; Keishi Murakami (IEICE Trans. Commun., 2005)

2.65Gbps Downlink Communications with Polarization Multiplexing in X-Band for Small Earth Observation Satellite. - Tomoki Kaneko; Noriyuki Kawano; Yuhei Nagao; Keishi Murakami; Hiromi Watanabe; Makoto Mita; Takahisa Tomoda; Keiichi Hirako; Seiko Shirasaka; Shinichi Nakasuka; Hirobumi Saito; Akira Hirose 001 (IEICE Trans. Commun., 2021)