Naoto Ishii

26 papers B 8C 1Journal 5Unranked 12
YearRankTypeTitle / Venue / Authors
2025 — conf
Highly Resilient Heterogeneous QKD Systems Integrated into Live Carrier-Grade C+L-Band ROADM-Based Links.
ECOC
Hiroki Kawahara, Yasuhiro Katsube, Tetsuo Kawakami, Kotaro Ueda, Yu Yu, Toshihiko Okamura, Keisuke Mera, Yoshimichi Tanizawa, Masashi Ito, Mikio Fujiwara, Masahide Sasaki, Wakako Maeda, Naoto Ishii
2025 — conf
Polarization-Independent 2.5-GHz Four-Encoding / Two-Decoy State BB84 QKD Systems Using Gated InGaAs SPADs.
ECOC
Hiroki Kawahara, Seigo Takahashi, Toshihiko Okamura, Wakako Maeda, Naoto Ishii
2025 B conf
Vector Similarity Search-Based MCS Selection for Iterative Signal Detection in Massive Multi-User MIMO-OFDM Systems.
WCNC
Fuga Kobayashi, Takumi Takahashi, Shinsuke Ibi, Hideki Ochiai, Kazushi Muraoka, Takanobu Doi, Naoto Ishii
2024 B conf
Outer Loop Link Adaptation Based on User Multiplexing for Generalized Approximate Message Passing in Massive MIMO.
WCNC
Takanobu Doi, Jun Shikida, Daichi Shirase, Kazushi Muraoka, Naoto Ishii, Takumi Takahashi, Shinsuke Ibi
2024 J jnl
Wideband Delta-Sigma Radio-Over-Fiber Embedding Complex-Valued Pulse-Distortion Model for 5G and Beyond.
IEEE Access
Masaaki Tanio, Daisaku Ogasahara, Naoto Ishii, Kazushi Muraoka
2023 J jnl
Receive Beamforming Designed for Massive Multi-User MIMO Detection via Gaussian Belief Propagation.
IEICE Trans. Commun.
Takanobu Doi, Jun Shikida, Daichi Shirase, Kazushi Muraoka, Naoto Ishii, Takumi Takahashi, Shinsuke Ibi
2022 J jnl
A Sparse Neural Network-Based Power Adaptive DPD Design and Its Hardware Implementation.
IEEE Access
Masaaki Tanio, Naoto Ishii, Norifumi Kamiya
2022 — conf
Inter-Access Point Coordinated User and Beam Selection for mmWave Distributed MIMO Systems.
VTC Fall
Jun Shikida, Kazushi Muraoka, Toshiki Takeuchi, Naoto Ishii
2022 B conf
Receive Beamforming for Gaussian Belief Propagation in Massive Multi-user MIMO for Reducing Fronthaul Bandwidth.
WCNC
Takanobu Doi, Jun Shikida, Kazushi Muraoka, Naoto Ishii, Daichi Shirase, Takumi Takahashi, Shinsuke Ibi
2022 — conf
Wideband Delta-Sigma Radio-over-Fiber Embedding a Pulse-Distortion Model for Beyond 5G.
VTC Fall
Masaaki Tanio, Naoto Ishii, Kazushi Muraoka
2021 B conf
Negentropy-Aware Loss Function for Trainable Belief Propagation in Coded MIMO Detection.
GLOBECOM
Daichi Shirase, Takumi Takahashi, Shinsuke Ibi, Kazushi Muraoka, Naoto Ishii, Seiichi Sampei
2021 — conf
Nonlinear Impairment Compensation Using Neural Networks.
OFC
Shinsuke Fujisawa, Fatih Yaman, Hussam G. Batshon, Masaaki Tanio, Naoto Ishii, Chaoran Huang, Thomas Ferreira de Lima, Yoshihisa Inada, Paul R. Prucnal, Norifumi Kamiya, Ting Wang
2020 J jnl
A method for automatic estimation of meaning ambiguity of emoticons based on their linguistic expressibility.
Cogn. Syst. Res.
Michal Ptaszynski, Fumito Masui, Naoto Ishii
2020 — conf
CNN Based Polarization Rotation Rate Estimation Using TIA Gain Monitoring in Integrated Coherent Receiver.
ECOC
Masaki Sato, Hidemi Noguchi, Naoto Ishii, Emmanuel Le Taillandier de Gabory
2020 B conf
Deep Unfolding-Aided Gaussian Belief Propagation for Correlated Large MIMO Detection.
GLOBECOM
Daichi Shirase, Takumi Takahashi, Shinsuke Ibi, Kazushi Muraoka, Naoto Ishii, Seiichi Sampei
2020 J jnl
Efficient Digital Predistortion Using Sparse Neural Network.
IEEE Access
Masaaki Tanio, Naoto Ishii, Norifumi Kamiya
2020 — conf
Mitigation of Inter-Subcarrier Linear Crosstalk with Groupwise Fixed FDE assisted MIMO.
OFC
Masaki Sato, Hidemi Noguchi, Junichiro Matsui, Jun-ichi Abe, Naoto Ishii, Emmanuel Le Taillandier de Gabory
2019 — conf
5G R&D Achievements for High-Data-Rate and Low-Power-Consumption Radio Access Technologies with Higher-Frequency-Band and Wider-Bandwidth Massive MIMO.
VTC Spring
Yukihiko Okumura, Satoshi Suyama, Naoto Ishii, Yasushi Maruta, Akihiro Okazaki, Atsushi Okamura, Jun Terada, Takeshi Onizawa
2019 — conf
Automatically Estimating Meaning Ambiguity of Emoticons.
BICA
Michal Ptaszynski, Fumito Masui, Naoto Ishii
2018 — conf
Sparse Channel Estimation Using Multiple DFT Matrices for Massive MIMO Systems.
VTC Fall
Jun Shikida, Kazushi Muraoka, Naoto Ishii
2017 — conf
Direction of Arrival Based Positioning in Three Dimensional Coordinates.
WSA
Martin Kurras, Lars Thiele, Xiao Peng, Naoto Ishii
2017 — conf
Performance Analysis of Low Complexity Coordinated Beamforming for Massive MIMO System.
VTC Fall
Jun Shikida, Naoto Ishii
2016 C conf
Performance analysis of low complexity multi-user MIMO scheduling schemes for massive MIMO system.
APCC
Jun Shikida, Naoto Ishii, Yoshikazu Kakura
1996 B conf
Multiuser equalization using partial response based on adaptive array antenna for DS/CDMA.
PIMRC
Naoto Ishii, Ryuji Kohno
1995 B conf
A spatially and temporally optimal multi-user receiver using an array antenna for DS/CDMA.
PIMRC
Ryuji Kohno, Naoto Ishii, Minami Nagatsuka
1994 B conf
Spatial and temporal equalization based on an adaptive tapped-delay-line array antenna.
PIMRC
Naoto Ishii, Ryuji Kohno