Access Control Architecture Separating Privilege by a Thread on a Web Server. - Ryosuke Matsumoto; Yasuo Okabe (SAINT, 2012)

Design of Cooperative Load Distribution for Addressing Flash Crowds Using P2P File Sharing Network. - Hiroki Okamoto; Ryosuke Matsumoto; Yasuo Okabe (COMPSAC, 2013)

Energy-efficient optical quantization scheme with orthogonal spectral slicing by AWG for OFDM. - Takahiro Kodama; Ryosuke Matsumoto; Akihiro Maruta; Ken-ichi Kitayama (OFC/NFOEC, 2013)

Cost-effective, asynchronous 4 × 40Gbps full-duplex OCDMA demonstrator using apodized SSFBGs and a multi-port encoder/decoder. - Ryosuke Matsumoto; Takahiro Kodama; Satoshi Shimizu; Ryujiro Nomura; Koji Omichi; Naoya Wada; Ken-ichi Kitayama (OFC/NFOEC, 2013)

A Mail Transfer System Selectively Restricting a Huge Amount of E-Mails. - Yoshiharu Tsuzaki; Ryosuke Matsumoto; Daisuke Kotani; Shuichi Miyazaki; Yasuo Okabe (SITIS, 2013)

Nonlinear-Error-Free Optical Quantization Using Dense Spectral Slicing. - Takahiro Kodama; Ryosuke Matsumoto; Akihiro Maruta; Tsuyoshi Konishi; Ken-ichi Kitayama (IEICE Trans. Commun., 2016)

Hardware-efficient Adaptive Equalization and Carrier Phase Recovery for 100 Gb/sM-based Coherent WDM-PON Systems. - Keisuke Matsuda; Ryosuke Matsumoto; Naoki Suzuki (ECOC, 2017)

Burst-Mode Coherent Detection Using Fast-Fitting Pilot Sequence for 100-Gb/sM Coherent TDM-PON System. - Ryosuke Matsumoto; Keisuke Matsuda; Naoki Suzuki (ECOC, 2017)

100G to 1T based Coherent PON Technology. - Naoki Suzuki; Hiroshi Miura; Keisuke Matsuda; Ryosuke Matsumoto; Kuniaki Motoshima (ECOC, 2017)

Demonstration of data-rate and power-budget adaptive 100 Gb/s/ A-based coherent PON downlink transmission. - Takahiro Kodama; Ryosuke Matsumoto; Naoki Suzuki (OFC, 2017)

Hardware-Efficient Signal Processing Technologies for Coherent PON Systems. - Keisuke Matsuda; Ryosuke Matsumoto; Hiroshi Miura; Kiyoshi Onohara; Naoki Suzuki (ECOC, 2018)

Fast, Low-Complexity Widely-Linear Compensation for IQ Imbalance in Burst-Mode 100-Gb/s/λ Coherent TDM-PON. - Ryosuke Matsumoto; Keisuke Matsuda; Naoki Suzuki (OFC, 2018)

FastContainer: A Homeostatic System Architecture High-Speed Adapting Execution Environment Changes. - Ryosuke Matsumoto; Uchio Kondo; Kentaro Kuribayashi (COMPSAC (1), 2019)

Automatic Whitelist Generation for SQL Queries Using Web Application Tests. - Komei Nomura; Kenji Rikitake; Ryosuke Matsumoto (COMPSAC (2), 2019)

HeteroTSDB: An Extensible Time Series Database for Automatically Tiering on Heterogeneous Key-Value Stores. - Yuuki Tsubouchi; Asato Wakisaka; Ken Hamada; Masayuki Matsuki; Hiroshi Abe; Ryosuke Matsumoto (COMPSAC (1), 2019)

Large-scale Certificate Management on Multi-tenant Web Servers. - Ryosuke Matsumoto; Kenji Rikitake; Kentaro Kuribayashi (J. Inf. Process., 2019)

Rapid Container Scheduling for Reactive Relocation of Individual HTTP Requests. - Ryosuke Matsumoto; Uchio Kondo (COMPSAC, 2020)

Transtracer: Socket-Based Tracing of Network Dependencies Among Processes in Distributed Applications. - Yuuki Tsubouchi; Masahiro Furukawa; Ryosuke Matsumoto (COMPSAC, 2020)

sshr: An SSH Proxy Server Responsive to System Changes without Forcing Clients to Change. - Hirofumi Tsuruta; Ryosuke Matsumoto (COMPSAC, 2020)

Large-Scale and Fast Optical Circuit Switch for Coherent Detection Using Tunable Local Oscillators Formed with Wavelength Bank and Widely-Tunable Silicon Ring Filters. - Ryosuke Matsumoto; Ryotaro Konoike; Hiroyuki Matsuura; Keijiro Suzuki; Takashi Inoue; Yojiro Mori; Kazuhiro Ikeda; Shu Namiki; Ken-ichi Sato (ECOC, 2020)

Scalable and Fast Optical Circuit Switch Created with Silicon-Photonic Tunable-Filter-Based Local Oscillator Bank and Colorless Coherent Detection. - Ryosuke Matsumoto; Takashi Inoue; Ryotaro Konoike; Hiroyuki Matsuura; Keijiro Suzuki; Yojiro Mori; Kazuhiro Ikeda; Shu Namiki; Ken-ichi Sato (OFC, 2020)

Wavelength Collision-Free and Low-Loss Full-Duplex Transmission over Switchable Full-Coupling or Half-Split Coherent WDM-PON System with Shared Protection. - Takahiro Kodama; Tetsuji Goto; Ryosuke Matsumoto (OFC, 2021)

Fast Optical Switch Utilizing Coherent Detection Enabled by Cooperative Filtering of Transmission Signal and Local Oscillator (LO) Wavelength Sourced from an LO Bank. - Ryosuke Matsumoto; Ryotaro Konoike; Hiroyuki Matsuura; Keijiro Suzuki; Takashi Inoue; Kazuhiro Ikeda; Shu Namiki; Ken-ichi Sato (OFC, 2021)

Fully-Loaded Operation of 0.29-pJ/bit Wall-plug Efficiency, 81.9-Tb/s Throughput 32 × 32 Silicon Photonics Switch. - Ryosuke Matsumoto; Ryotaro Konoike; Keijiro Suzuki; Hiroyuki Matsuura; Kazuhiro Ikeda; Takashi Inoue; Shu Namiki (OFC, 2021)

Concentrated isolation for container networks toward application-aware sandbox tailoring. - Yuki Nakata; Katsuya Matsubara; Ryosuke Matsumoto (UCC, 2021)

Any-Double-Link Failure Tolerant Bypass/Backup Switchable WDM-PON Employing Path-Pair Shared Protection and Bidirectional Wavelength Pre-assignment. - Takahiro Kodama; Tomoya Nakagawa; Ryosuke Matsumoto (OFC, 2022)

Scalable and Fast Optical Circuit Switch Exploiting Colorless Coherent Detection. - Ryosuke Matsumoto; Ryotaro Konoike; Keijiro Suzuki; Takashi Inoue; Shu Namiki; Ken-ichi Sato (OFC, 2022)

Propagation Symmetry Enhanced Distortion Compensation by Optical Phase Conjugation via Step-Profiling Fiber Links. - Mark Pelusi; Ryosuke Matsumoto; Takashi Inoue; Shu Namiki (OFC, 2022)

Recent Advances in Large-scale Optical Switches Based on Silicon Photonics. - Keijiro Suzuki; Ryotaro Konoike; Hiroyuki Matsuura; Ryosuke Matsumoto; Takashi Inoue; Shu Namiki; Hitoshi Kawashima; Kazuhiro Ikeda (OFC, 2022)

Demonstration of Port-Selective Beam Scanner Incorporating Silicon Vertically Curved Waveguide Antenna Arrays. - Yuki Atsumi; Tomoya Yoshida; Ryosuke Matsumoto; Ryotaro Konoike; Youichi Sakakibara; Takashi Inoue; Keijiro Suzuki (OECC/PSC, 2022)

Fully-loaded 32×32 silicon thermo-optic switches for disaggregated computing. - Ryosuke Matsumoto; Ryotaro Konoike; Keijiro Suzuki; Hiroyuki Matsuura; Kazuhiro Ikeda; Takashi Inoue; Shu Namiki (OECC/PSC, 2022)

Low Overhead TCP/UDP Socket-based Tracing for Discovering Network Services Dependencies. - Yuuki Tsubouchi; Masahiro Furukawa; Ryosuke Matsumoto (J. Inf. Process., 2022)

Free-Space Signal Transmission Using Optical Beam Scanning Device Incorporating Broadband Silicon Surface Optical Couplers. - Yuki Atsumi; Tomoya Yoshida; Ryosuke Matsumoto; Ryotaro Konoike; Youichi Sakakibara; Takashi Inoue; Keijiro Suzuki (OFC, 2023)

Fast (<9.4 μs) Full-C-Band Tuning of Silicon Photonics Double-Ring Filters using Feed-Forward Control. - Ryotaro Konoike; Hiroyuki Matsuura; Keijiro Suzuki; Ryosuke Matsumoto; Kazuhiro Ikeda; Ken-ichi Sato (OFC, 2023)

Performance Verification of 7, 424 × 7, 424 Optical Switch Offering 1.4 μs Switching Time. - Ryosuke Matsumoto; Ryotaro Konoike; Hiroyuki Matsuura; Keijiro Suzuki; Takashi Inoue; Kazuhiro Ikeda; Shu Namiki; Ken-ichi Sato (OFC, 2023)

Pre-Link Compensation of Nonlinear Signal Distortion by a Phase Conjugation and Parameter Profiled Fiber Module. - Mark Pelusi; Ryosuke Matsumoto; Takashi Inoue; Shu Namiki (OFC, 2023)

Core-to-Core Switching Module for 4-Core MCFs Using Silicon Photonics Matrix Switch Incorporating Silicon Vertically Curved Optical Coupler. - Tomoya Yoshida; Yuki Atsumi; Emiko Omoda; Katsuya Kito; Katsuhiro Iwasaki; Yusuke Kinoshita; Tomoaki Kiriyama; Ryotaro Konoike; Keijiro Suzuki; Ryosuke Matsumoto; Takashi Inoue; Kazuhiro Ikeda; et al. (OFC, 2023)

Secure Point-to-Multipoint Transmission with Access-Span Difference Using Phase Encryption and Power-Loaded IQ-Channel Multiplexing. - Keiiji Shimada; Ryosuke Matsumoto; Keita Tanaka; Takahiro Kodama (PSC, 2023)

Disaggregated optical-layer switching for optically composable disaggregated computing [Invited]. - Kiyo Ishii; Ryosuke Matsumoto; Takashi Inoue; Shu Namiki (JOCN, 2023)

Broadband Port-Selective Silicon Beam Scanning Device for Free-Space Optical Communication. - Yuki Atsumi; Tomoya Yoshida; Ryosuke Matsumoto; Ryotaro Konoike; Youichi Sakakibara; Takashi Inoue; Keijiro Suzuki (IEICE Trans. Electron., 2023)

Cost-effective ROADM Using Wide-bandwidth Silicon Tunable Ring Filter for Drop Operation. - Ryosuke Matsumoto; Ryotaro Konoike; Hiroyuki Matsuura; Keijiro Suzuki; Takashi Inoue; Kazuhiro Ikeda; Shu Namiki; Ken-ichi Sato (OFC, 2024)

Performance of Radix Sort using All-to-all Optical Interconnection Network in an Eight-FPGA Cluster. - Kenji Mizutani; Yutaka Urino; Takanori Shimizu; Hiroshi Yamaguchi; Shigeru Nakamura; Tatsuya Usuki; Kiyo Ishii; Ryosuke Matsumoto; Takashi Inoue; Shu Namiki; Michihiro Koibuchi (OFC, 2024)

Double-link-failure-tolerant shared protection for fully coupled/half-split switchable point-to-multipoint coherent optical systems. - Takahiro Kodama; Tomoya Nakagawa; Shota Eguchi; Keiji Shimada; Ryosuke Matsumoto (J. Opt. Commun. Netw., 2024)

Silicon Photonics-based Waveband Routing for Flexible Functional Splits. - Takahiro Kodama; Ryosuke Matsumoto; Kazuhiro Ikeda; Shu Namiki (OFC, 2025)

Inter-channel FWM Mitigation using Low-Complexity Digital Pre-Compensation for O-band IMDD Transmission. - Ryosuke Matsumoto; Takayuki Kurosu; Satoshi Suda; Takeru Amano (OFC, 2025)

Full C-band Two-Dimensional Beam-Steering Silicon PIC and 15.36-Tbit/s Free-Space Optical Transmission. - Tomoya Yoshida; Takashi Inoue; Yuki Atsumi; Ryosuke Matsumoto; Ryotaro Konoike; Kazuhiro Ikeda; Keijiro Suzuki (OFC, 2025)

In-network stable radix sorter using many FPGAs with high-bandwidth photonics [Invited]. - Kenji Mizutani; Yutaka Urino; Takanori Shimizu; Hiroshi Yamaguchi; Shigeru Nakamura; Tatsuya Usuki; Kiyo Ishii; Ryosuke Matsumoto; Takashi Inoue; Shu Namiki; Michihiro Koibuchi (J. Opt. Commun. Netw., 2025)