Ryo Hayakawa

30 papers C 2Misc 2Journal 17Unranked 9
YearRankTypeTitle / Venue / Authors
2025 — conf
An Investigation of Parameter Scheduling for Image Restoration in Optical Analog Circuits.
APSIPA
Taisei Kato, Ryo Hayakawa, Soma Furusawa, Kazunori Hayashi, Youji Iiguni
2025 J jnl
Approximate Proximal Operators for Analog Compressed Sensing Using PN-junction Diode.
CoRR
Soma Furusawa, Taisei Kato, Ryo Hayakawa, Kazunori Hayashi
2025 J jnl
Deep Unfolding-Aided Parameter Tuning for Plug-and-Play-Based Video Snapshot Compressive Imaging.
IEEE Access
Takashi Matsuda, Ryo Hayakawa, Youji Iiguni
2025 J jnl
Depth-Aided Color Image Inpainting in Quaternion Domain.
CoRR
Shunki Tatsumi, Ryo Hayakawa, Youji Iiguni
2025 J jnl
Depth-Aided Color Image Inpainting in Quaternion Domain.
IEEE Signal Process. Lett.
Shunki Tatsumi, Ryo Hayakawa, Youji Iiguni
2023 — conf
Numerical Performance Evaluation of ℓ1 - ℓ2 Sparse Reconstruction Using Optical Analog Circuit.
APSIPA ASC
Soma Furusawa, Kazunori Hayashi, Kaito Kameda, Ryo Hayakawa
2022 J jnl
Asymptotic Performance Prediction for ADMM-Based Compressed Sensing.
IEEE Trans. Signal Process.
Ryo Hayakawa
2021 J jnl
Error Analysis of Douglas-Rachford Algorithm for Linear Inverse Problems: Asymptotics of Proximity Operator for Squared Loss.
CoRR
Ryo Hayakawa
2020 — conf
An Overloaded IoT Signal Detection Method using Non-convex Sparse Regularizers.
APSIPA
Kazunori Hayashi, Ayano Nakai-Kasai, Atsuya Hirayama, Hiroki Honda, Tetsuya Sasaki, Hideki Yasukawa, Ryo Hayakawa
2020 J jnl
Asymptotic Analysis of ADMM for Compressed Sensing.
CoRR
Ryo Hayakawa
2020 J jnl
Asymptotic Performance of Discrete-Valued Vector Reconstruction via Box-Constrained Optimization With Sum of $\ell _{1}$ Regularizers.
IEEE Trans. Signal Process.
Ryo Hayakawa, Kazunori Hayashi
2020 J jnl
Noise Variance Estimation Using Asymptotic Residual in Compressed Sensing.
CoRR
Ryo Hayakawa
2019 — conf
An Overloaded SC-CP IoT Signal Detection Method via Sparse Complex Discrete-Valued Vector Reconstruction.
APSIPA
Kazunori Hayashi, Ayano Nakai-Kasai, Ryo Hayakawa
2019 — conf
Discrete-Valued Vector Reconstruction by Optimization with Sum of Sparse Regularizers.
EUSIPCO
Ryo Hayakawa, Kazunori Hayashi
2019 Misc conf
Performance Analysis of Discrete-valued Vector Reconstruction Based on Box-constrained Sum of L1 Regularizers.
ICASSP
Ryo Hayakawa, Kazunori Hayashi
2019 J jnl
Trainable Projected Gradient Detector for Massive Overloaded MIMO Channels: Data-Driven Tuning Approach.
IEEE Access
Satoshi Takabe, Masayuki Imanishi, Tadashi Wadayama, Ryo Hayakawa, Kazunori Hayashi
2018 J jnl
Discreteness-Aware Approximate Message Passing for Discrete-Valued Vector Reconstruction.
IEEE Trans. Signal Process.
Ryo Hayakawa, Kazunori Hayashi
2018 J jnl
Discreteness-Aware Decoding for Overloaded Non-Orthogonal STBCs via Convex Optimization.
IEEE Commun. Lett.
Ryo Hayakawa, Kazunori Hayashi
2018 Misc conf
Distributed Approximate Message Passing with Summation Propagation.
ICASSP
Ryo Hayakawa, Ayano Nakai, Kazunori Hayashi
2018 J jnl
Reconstruction of Complex Discrete-Valued Vector via Convex Optimization With Sparse Regularizers.
IEEE Access
Ryo Hayakawa, Kazunori Hayashi
2018 — conf
Uplink Overloaded MU-MIMO OFDM Signal Detection Methods using Convex Optimization.
APSIPA
Kazunori Hayashi, Ayano Nakai, Ryo Hayakawa, Sangseok Ha
2017 — conf
Binary vector reconstruction via discreteness-aware approximate message passing.
APSIPA
Ryo Hayakawa, Kazunori Hayashi
2017 J jnl
Convex Optimization-Based Signal Detection for Massive Overloaded MIMO Systems.
IEEE Trans. Wirel. Commun.
Ryo Hayakawa, Kazunori Hayashi
2017 — conf
Discreteness-aware AMP for reconstruction of symmetrically distributed discrete variables.
SPAWC
Ryo Hayakawa, Kazunori Hayashi
2017 J jnl
Error Recovery for Massive MIMO Signal Detection via Reconstruction of Discrete-Valued Sparse Vector.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Ryo Hayakawa, Kazunori Hayashi
2016 C conf
Error recovery with relaxed MAP estimation for massive MIMO signal detection.
ISITA
Ryo Hayakawa, Kazunori Hayashi
2016 J jnl
Lattice Reduction-Aided Detection for Overloaded MIMO Using Slab Decoding.
IEICE Trans. Commun.
Ryo Hayakawa, Kazunori Hayashi, Megumi Kaneko
2016 — conf
Massive overloaded MIMO signal detection via convex optimization with proximal splitting.
EUSIPCO
Ryo Hayakawa, Kazunori Hayashi, Hampei Sasahara, Masaaki Nagahara
2015 C conf
An overloaded MIMO signal detection scheme with slab decoding and lattice reduction.
APCC
Ryo Hayakawa, Kazunori Hayashi, Megumi Kaneko
2013 J jnl
Photonic crystal slow light devices fabricated by CMOS-compatible process.
IEICE Electron. Express
Toshihiko Baba, Hong C. Nguyen, Norihiro Ishikura, Keijiro Suzuki, Mizuki Shinkawa, Ryo Hayakawa, Keisuke Kondo