Kubo Lab.: Keio Univ.

KSEL

2020

Journal Papers (Refereed)

  1. Takaharu Yamanaka, Kenta Yamada, Ryosuke Hotchi and Ryogo Kubo,
    "Simultaneous time-delay and data-loss compensation for networked control systems with energy-efficient network interfaces,"
    IEEE Access, Vol. 8, pp. 110082-110092, June 2020.
  2. Nobuhiko Itoh, Takanori Iwai and Ryogo Kubo,
    "Maximum bit rate control based on throughput feedback for deadline-aware resource management in cellular networks,"
    IEICE Communications Express, Vol. 9, No. 7, pp. 250-255, July 2020.
  3. Nobuhiko Itoh, Takanori Iwai and Ryogo Kubo,
    "Congestion-adaptive and deadline-aware scheduling for connected car services over mobile networks,"
    IEICE Transactions on Communications, Vol. E103-B, No. 10, pp. 1117-1126, October 2020.
  4. Ryosuke Hotchi, Hosho Chibana, Takanori Iwai and Ryogo Kubo,
    "Active queue management supporting TCP flows using disturbance observer and Smith predictor,"
    IEEE Access, Vol. 8, pp. 173401-173413, October 2020.

Conference Talks (Invited)

  1. Ryogo Kubo, Ryuta Sakamoto and Koji Ochi,
    "Recent trends and open issues of QoE-aware video streaming technology based on control engineering approach,"
    Proceedings of the 2020 IEICE Society Conference, Vol. 2, p. S-25, 2020. (in Japanese) (requested talk)

Conference Talks (Refereed)

  1. David González Filoso, Ryogo Kubo, Kazutaka Hara, Shinya Tamaki, Katsuya Minami and Kohji Tsuji,
    "Proportional-based resource allocation control with QoS adaptation for IEEE 802.11ax,"
    Proceedings of the IEEE International Conference on Communications, ICC 2020, pp. 1-6, 2020.
  2. David González Filoso, Kazutaka Hara, Shinya Tamaki, Katsuya Minami, Kohji Tsuji and Ryogo Kubo,
    "Deadline-aware emergency data resource allocation control for IEEE 802.11ax,"
    Proceedings of the IEEE International Conference on Consumer Electronics - Taiwan, ICCE-TW 2020, B3-3, 2020.

Conference Talks (Non-refereed)

  1. Ryuta Sakamoto, Ryosuke Hotchi and Ryogo Kubo,
    "Stable bitrate selection method for improving user QoE in MPEG-DASH,"
    Proceedings of the 2020 IEICE General Conference, Vol. 2, pp. S-92-S-93, 2020. (in Japanese)
  2. Koji Ochi, Ryuta Sakamoto, Ryosuke Hotchi and Ryogo Kubo,
    "A time-delay compensation technique for QoE-aware adaptive video streaming,"
    IEICE Technical Report, Communication Systems, Vol. 120, No. 75, CS2020-9, pp. 33-38, 2020. (in Japanese)
  3. Keisuke Tajima, Ryuta Sakamoto, Ryosuke Hotchi, Takahiro Matsuda and Ryogo Kubo,
    "Waiting time control considering QoE fluctuation in web browsing,"
    IEICE Technical Report, Communication Quality, Vol. 120, No. 76, CQ2020-16, pp. 77-82, 2020. (in Japanese)
  4. Ryuta Sakamoto and Ryogo Kubo,
    "Dynamic bandwidth control considering QoE fairness for MPEG-DASH,"
    Proceedings of the 2020 IEICE Society Conference, Vol. 2, p. 109, 2020. (in Japanese)

Patents

  1. Radio communication system, management method of wireless communication system, management node, and program, JP 7393298
  2. Wireless communication system, connection recovery method, a wireless base station, server, and program, JP 7428587
  3. Wireless communication system, communication method, and radio base station, JP 7393299
  4. Wireless communication system, communication method, and radio base station, JP 7434068
  5. Communication system, subscriber line termination device, and subscriber line end station device, JP 7029757
  6. Communication system and subscriber line end station device, JP 7029758
  7. Radio communication system, radio based station, and radio communication method, JP 2022-070149
  8. Wireless communication system, management server, and communication method, JP 2022-071540
  9. Wireless communication system, connection recovery method, radio base station, and program, JP 2022-071964


Awards

  1. Nobuhiko Itoh, Takanori Iwai and Ryogo Kubo,
    Best Research Award, Technical Committee on Communication Quality, IEICE Communications Society, 2020.

Miscellaneous

  1. (Exhibition)
    Ryogo Kubo,
    "Networked control of cyber-physical-social systems,"
    The 21st Annual Keio Science and Technology Exhibition, KEIO TECHNO-MALL 2020, December 2020.
  2. (Exhibition)
    Ryogo Kubo,
    "Disaster-resilient communication networks,"
    The 21st Annual Keio Science and Technology Exhibition, KEIO TECHNO-MALL 2020, December 2020.
  3. (Talk)
    Ryogo Kubo,
    "Cyber-physical systems co-created by humans, machines, and networks,"
    Short Presentations, The 21st Annual Keio Science and Technology Exhibition, KEIO TECHNO-MALL 2020, December 2020.

2019

Journal Papers (Invited)

  1. Ryogo Kubo, Katsumi Yoshizawa, Yasunori Tomomatsu, Makoto Sudo, Tadashi Hajikano and Hiroyuki Tsuda,
    "Toward high-capacity and diversified photonic networks using 1000-channel class wavelength routing technology in the T/O-band,"
    IEICE Transactions on Electronics (Japanese Edition), Vol. J102-C, No. 12, pp. 320-331, December 2019. (in Japanese) (invited paper)

Journal Papers (Refereed)

  1. Nobuhiko Itoh, Motoki Morita, Takanori Iwai, Kozo Satoda and Ryogo Kubo,
    "A deadline-aware scheduling scheme for connected car services using mobile networks with quality fluctuation,"
    IEICE Transactions on Communications, Vol. E102-B, No. 3, pp. 474-483, March 2019.
  2. Kenta Yamada, Jin Hoshino and Ryogo Kubo,
    "Detection of data tampering attacks using redundant network paths with different delays for networked control systems,"
    Nonlinear Theory and Its Applications, IEICE, Vol. 10, No. 2, pp. 140-156, April 2019.
  3. Ryosuke Hotchi and Ryogo Kubo,
    "Remote congestion control using a model-free butterfly-shaped perfect delay compensator for active queue management supporting TCP flows,"
    Nonlinear Theory and Its Applications, IEICE, Vol. 10, No. 2, pp. 157-172, April 2019.

Conference Talks (Invited)

  1. Takahiro Matsuda, Kenko Ota, Ryogo Kubo and Takanori Hayashi,
    "Quality of experience and user context-aware network design and control,"
    IEICE Technical Report, Smart Radio, Vol. 118, No. 421, SR2018-111, pp. 91-96, 2019. (in Japanese) (invited talk)
  2. Ryogo Kubo and Kenta Yamada,
    "Control system security for cyber-physical systems: From the quality of control perspective in networked control systems,"
    Proceedings of the 2019 IEICE General Conference, Vol. 2, p. SS-58, 2019. (in Japanese) (requested talk)

Conference Talks (Refereed)

  1. Ryogo Kubo,
    "Effects of time delays on observer-based cyberattack detection in interactive networked control systems,"
    Proceedings of the IEEE International Conference on Consumer Electronics - Taiwan, ICCE-TW 2019, D4-5, 2019.
  2. Ryogo Kubo, Takahiro Michigami, Kenta Yamada and Manabu Yoshino,
    "Demonstration of wide-area networked motion control over long-reach 10G-EPON based on optical access edge computing,"
    Proceedings of the 24th OptoElectronics and Communications Conference/International Conference on Photonics in Switching and Computing 2019, OECC/PSC 2019, TuA3-5, 2019.
  3. Ryuta Sakamoto, Takahiro Shobudani, Ryosuke Hotchi and Ryogo Kubo,
    "QoE assessment considering user preferences in PD-based stable adaptive streaming for MPEG-DASH,"
    Proceedings of the 2019 International Symposium on Nonlinear Theory and its Applications, NOLTA 2019, pp. 385-388, 2019.
  4. Ryosuke Hotchi and Ryogo Kubo,
    "Update cycle recalculation in active queue management using dynamically controlled target queue length,"
    Proceedings of the 2019 International Symposium on Nonlinear Theory and its Applications, NOLTA 2019, pp. 389-392, 2019.
  5. Takaharu Yamanaka, Kenta Yamada, Ryosuke Hotchi and Ryogo Kubo,
    "Time-delay and data-loss compensation using communication disturbance observer for energy-efficient networked control systems,"
    Proceedings of the 2019 International Symposium on Nonlinear Theory and its Applications, NOLTA 2019, pp. 577-580, 2019.
  6. Kento Aida, Kenta Yamada, Ryosuke Hotchi and Ryogo Kubo,
    "Dynamic redundant path selection for tamper-tolerant networked control,"
    Proceedings of the 2019 International Symposium on Nonlinear Theory and its Applications, NOLTA 2019, pp. 581-584, 2019.

Conference Talks (Non-refereed)

  1. Takahiro Shobudani and Ryogo Kubo,
    "A study on transceiver allocation in T/O-band LAN access integrated optical networks,"
    Proceedings of the 2019 IEICE General Conference, Vol. 2, p. 243, 2019. (in Japanese)
  2. Kento Aida, Kenta Yamada, Ryosuke Hotchi and Ryogo Kubo,
    "Dynamic redundancy switching method of network paths for tamper-tolerant networked control,"
    IEICE Technical Report, Communication Systems, Vol. 199, No. 6, CS2019-1, pp. 1-6, 2019. (in Japanese)
  3. Ryuta Sakamoto, Takahiro Shobudani, Ryosuke Hotchi and Ryogo Kubo,
    "QoE-aware mitigation of bitrate fluctuation in MPEG-DASH,"
    IEICE Technical Report, Communication Quality, Vol. 119, No. 7, CQ2019-1, pp. 1-6, 2019. (in Japanese)
  4. Takaharu Yamanaka, Kenta Yamada, Ryosuke Hotchi and Ryogo Kubo,
    "Time-delay and data-loss compensation using communication disturbance observer for networked control systems with power-saving function,"
    IEICE Technical Report, Communication Quality, Vol. 119, No. 61, CQ2019-32, pp. 107-112, 2019. (in Japanese)
  5. Nobuhiko Itoh, Takanori Iwai and Ryogo Kubo,
    "Congestion and deadline-aware scheduling of LTE networks for connected car applications,"
    IEICE Technical Report, Communication Quality, Vol. 119, No. 183, CQ2019-57, pp. 1-6, 2019. (in Japanese)

Awards

  1. Ryogo Kubo,
    Certificate of Appreciation, IEEJ Japanese Electrotechnical Committee, 2019.
  2. Ryuta Sakamoto,
    Research Encouragement Award, Technical Committee on Communication Quality, IEICE Communications Society, 2019.
  3. Ryogo Kubo,
    Certificate of Appreciation, IEEJ Japanese Electrotechnical Committee, 2019.
  4. Ryogo Kubo,
    Distinguished Contributions Award, IEICE Communications Society, 2018.

Miscellaneous

  1. Yoshiki Kanai, Yuta Kakimi and Ryogo Kubo,
    "Custom-made supplement server -Digitally resolve nutritional deficiencies-,"
    Journal of the IEEJ, Vol. 139, No. 5, pp. 308-311, May 2019. (in Japanese)
  2. (Exhibition)
    Hiroyuki Tsuda and Ryogo Kubo,
    "Research and development on photonic networks using broad wavelength range of T-band and O-band,"
    The 20th Annual Keio Science and Technology Exhibition, KEIO TECHNO-MALL 2019, December 2019.

2018

Journal Papers (Invited)

  1. Takanori Iwai, Daichi Kominami, Masayuki Murata, Ryogo Kubo and Kozo Satoda,
    "Mobile network architectures and context-aware network control technology in the IoT era,"
    IEICE Transactions on Communications, Vol. E101-B, No. 10, pp. 2083-2093, October 2018. (invited paper)

Journal Papers (Refereed)

  1. Ryogo Kubo, Marino Matsunaga, Takahiro Shobudani, Takuto Fujimoto, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu and Katsumi Yoshizawa,
    "Demonstration of 10-Gbit/s transmission over G.652 fiber for T-band optical access systems using quantum-dot semiconductor devices,"
    IEICE Electronics Express, Vol. 15, No. 18, 20180810, September 2018.

Conference Talks (Invited)

  1. Ryogo Kubo,
    "Detection and mitigation of false data injection attacks for secure interactive networked control systems,"
    Proceedings of the 2018 IEEE International Conference on Intelligence and Safety for Robotics, ISR 2018, pp. 7-12, 2018. (invited session)
  2. Ryogo Kubo, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu and Katsumi Yoshizawa,
    "1081-channel wavelength routing technology in T/O-band,"
    Proceedings of the 2018 IEICE Society Conference, Vol. 1, p. 117, 2018. (in Japanese) (requested talk)
  3. Ryogo Kubo,
    "Fundamentals of control engineering and its applications to communication systems,"
    IEICE Multiple Innovative Kenkyu-kai Association for Wireless Communications, MIKA 2018, 2018. (in Japanese) (tutorial lecture)

Conference Talks (Refereed)

  1. Naoki Hanaya, Yu Nakayama, Manabu Yoshino, Ken-Ichi Suzuki and Ryogo Kubo,
    "Remotely controlled XG-PON DBA with linear prediction for flexible access system architecture,"
    Proceedings of the Optical Networking and Communication Conference & Exhibition, OFC 2018, Tu3L.1, pp. 1-3, 2018.
  2. Ryogo Kubo, Takuto Fujimoto, Takahiro Shobudani, Yudai Okuno, Masaki Suzuki, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu and Katsumi Yoshizawa,
    "T/O-band wavelength routing system using quantum dot semiconductor devices and 1081-channel AWG router,"
    Proceedings of the Optical Networking and Communication Conference & Exhibition, OFC 2018, Th3H.4, pp. 1-3, 2018.
  3. Ryosuke Hotchi and Ryogo Kubo,
    "Active queue management supporting TCP flows using dynamically controlled target queue length,"
    Proceedings of the IEEE International Conference on Consumer Electronics - Taiwan, ICCE-TW 2018, pp. 77-78, 2018.
  4. Dominik Mildt, Marco Cupelli, Antonello Monti and Ryogo Kubo,
    "Islanding time evaluation in residential microgrids,"
    Proceedings of the 2018 IEEE PES/IAS PowerAfrica Conference, PowerAfrica 2018, pp. 372-377, 2018.
  5. Takahiro Shobudani, Risa Kawashima, Takuto Fujimoto, Ryogo Kubo, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu and Katsumi Yoshizawa,
    "Integrated passive optical local-area and access network architecture using T/O-band wavelength routing system,"
    Proceedings of the 23rd Microoptics Conference, MOC 2018, J-4, 2018.

Conference Talks (Non-refereed)

  1. Jin Hoshino and Ryogo Kubo,
    "Anti-tampering technique for networked formation control of UAVs,"
    Proceedings of the 3rd IEICE Communication Quality Workshop, p. 33, 2018. (in Japanese)
  2. Jin Hoshino and Ryogo Kubo,
    "Tamper detection using differential mode for formation control of UAVs,"
    Proceedings of the 2018 IEICE General Conference, Vol. 2, p. 267, 2018. (in Japanese)
  3. Kenta Yamada, Jin Hoshino and Ryogo Kubo,
    "Low-latency tamper detection using threshold for networked control,"
    Proceedings of the 2018 IEICE General Conference, Vol. 2, p. 268, 2018. (in Japanese)
  4. Takanori Iwai, Ryogo Kubo, Nobuhiko Itoh and Kozo Satoda,
    "A bandwidth-reserved transmission rate control method for networked machine control systems,"
    IEICE Technical Report, Communication Quality, Vol. 118, No. 71, CQ2018-19, pp. 7-12, 2018. (in Japanese)
  5. Ryosuke Hotchi and Ryogo Kubo,
    "A study of queue length control in TCP/AQM networks considering buffer capacity,"
    IEICE Technical Report, Communication Quality, Vol. 118, No. 140, CQ2018-39, pp. 45-50, 2018. (in Japanese)
  6. Nobuhiko Itoh, Takanori Iwai, Kozo Satoda and Ryogo Kubo,
    "A deadline-aware scheduling scheme for vehicle collision avoidance using LTE networks with quality fluctuation,"
    IEICE Technical Report, Communication Quality, Vol. 118, No. 192, CQ2018-46, pp. 1-6, 2018. (in Japanese)
  7. Ryosuke Hotchi and Ryogo Kubo,
    "A study of updating cycle of target queue length in AQM,"
    Proceedings of the 2018 IEICE Society Conference, Vol. 2, p. 208, 2018. (in Japanese)
  8. Kenta Yamada, Ryosuke Hotchi and Ryogo Kubo,
    "Information hiding for networked control systems using steganography,"
    IEICE Technical Report, Communication Quality, Vol. 118, No. 302, CQ2018-73, pp. 55-60, 2018. (in Japanese)

Patents

  1. Communication apparatus and queue management method, JP 7000249

Awards

  1. Dominik Mildt,
    Technical Committee Encouragement Award, IEEJ Electronics, Information, and Systems Society, 2018.
  2. Ryogo Kubo,
    Best Paper Award, The 2018 IEEE International Conference on Intelligence and Safety for Robotics (ISR 2018), 2018.
  3. Ryogo Kubo,
    Distinguished Contributions Award, IEICE Communications Society, 2018.
  4. Ryogo Kubo,
    Certificate of Appreciation, IEEJ Japanese Electrotechnical Committee, 2018.
  5. Ryogo Kubo,
    Certificate of Appreciation, IEEJ Japanese Electrotechnical Committee, 2018.

Miscellaneous

  1. Ryogo Kubo,
    "System electronics from Keio's Faculty of Science and Technology: A smart infrastructure system fusing ICT and control,"
    New Kyurizukai, No. 27, January 2018.
  2. (Press Release)
    Keio University, Pioneer Micro Technology Corporation, Koshin Kogaku Co., Ltd., and Optoquest Co., Ltd.,
    "Development in the Newly Defined “T-Band” Communication Wavelength Band using Quantum Dot Technology - Enabling wavelength routing system with over 1,000 wavelength channels -,"
    Keio Press Release, March 27th, 2018.
  3. (Exhibition)
    Keio University, Pioneer Micro Technology Corporation, Koshin Kogaku Co., Ltd., and Optoquest Co., Ltd.,
    "R&D on photonic networks using broad wavelength range of T-band and O-band,"
    NICT Open House 2018, June 2018.
  4. Yuta Kakimi, Hisayoshi Muramatsu and Ryogo Kubo,
    "Different fields' viewpoint for electrical and electronic field -From medical science to electrical and electronic engineering-,"
    Journal of the IEEJ, Vol. 138, No. 9, pp. 618-621, September 2018. (in Japanese)
  5. Ryogo Kubo,
    "Special Section on Sports and ICT: Foreword,"
    IEICE Communications Society Magazine, No. 46, pp. 85, September 2018. (in Japanese)
  6. Ryogo Kubo,
    "Networked control technologies for cyber-physical systems: Emerging issues in IoT-based control systems,"
    REEA FORN, No. 324, pp. 18-21, September 2018. (in Japanese)
  7. (Exhibition)
    Ryogo Kubo,
    "Cyber-physical ICT: Networked control systems,"
    The 19th Annual Keio Science and Technology Exhibition, KEIO TECHNO-MALL 2018, December 2018.

2017

Journal Papers (Refereed)

  1. Takahiro Kikuchi and Ryogo Kubo,
    "Delay-aware sleep control of optical network unit in EPONs using disturbance observer,"
    IEICE Communications Express, Vol. 6, No. 11, pp. 615-620, November 2017.

Journal Papers (Non-refereed)

  1. Jun Okamoto, Ryogo Kubo, Sho Tsugawa, Takeshi Hiraguri and Takahiro Matsuda,
    "Quality assessment, design, and control of communications networks,"
    Journal of the IEICE, Vol. 100, No. 8, pp. 831-836, August 2017.
  2. Ryogo Kubo,
    "Integration of communications engineering and control engineering: Control of networks and control over networks,"
    Journal of the IEICE, Vol. 100, No. 11, pp. 1316-1320, November 2017.

Conference Talks (Invited)

  1. Takahiro Matsuda, Jun Okamoto, Ryogo Kubo, Sho Tsugawa and Takefumi Hiraguri,
    "Actitivity of Technical Committee of Communication Quality for future network innovation -Integration of assessment, measurement, and control of communication quality-,"
    Proceedings of the 2017 IEICE General Conference, Vol. 1, pp. SS-92-SS-93, 2017. (in Japanese) (requested talk)
  2. Ryogo Kubo,
    "Cyber-physical ICT based on integrated information, communication, and control technologies,"
    Proceedings of the 18th SICE Symposium on Industrial Application Systems, pp. 93-94, 2017. (in Japanese) (invited talk)

Conference Talks (Refereed)

  1. Ryogo Kubo, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu and Katsumi Yoshizawa,
    "Experimental demonstration of 4K-UHD video transmission using T-band wavelength routing system for passive optical local area networks,"
    Proceedings of the 43rd European Conference on Optical Communication, ECOC 2017, Th.2.B.4, pp. 1-3, 2017.
  2. Dominik Mildt and Ryogo Kubo,
    "Decentralized hybrid switching control of multiconverter MVDC shipboard power systems,"
    Proceedings of the 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017, pp. 6795-6800, 2017.
  3. Takuto Fujimoto, Takuya Uesugi, Ryogo Kubo, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu and Katsumi Yoshizawa,
    "Feasibility study of adaptive gain control of quantum-dot SOA for unicast/multicast wavelength selective routing systems in T-band,"
    Proceedings of the 22nd Microoptics Conference, MOC 2017, P-95, pp. 324-325, 2017.
  4. Takahiro Shobudani, Takuto Fujimoto and Ryogo Kubo,
    "Multicast wavelength allocation for energy-efficient access networks considering wavelength switching time of T-band devices,"
    Proceedings of the 22nd Microoptics Conference, MOC 2017, P-100, pp. 334-335, 2017.
  5. Ryosuke Hotchi and Ryogo Kubo,
    "Analysis of controller mismatch in AQM with butterfly-shaped perfect delay compensator,"
    Proceedings of the 2017 International Symposium on Nonlinear Theory and its Applications, NOLTA 2017, pp. 58-61, 2017.
  6. Jin Hoshino, Takahiro Funakoshi, Kenta Yamada and Ryogo Kubo,
    "Networked motion control with tamper detection observer and Smith predictor,"
    Proceedings of the 2017 International Symposium on Nonlinear Theory and its Applications, NOLTA 2017, pp. 62-65, 2017.
  7. Kenta Yamada, Jin Hoshino and Ryogo Kubo,
    "A tamper detection method using redundant network paths with different delays for networked control systems,"
    Proceedings of the 2017 International Symposium on Nonlinear Theory and its Applications, NOLTA 2017, pp. 66-69, 2017.

Conference Talks (Non-refereed)

  1. Takahiro Funakoshi and Ryogo Kubo,
    "Improvement of control performance considering sleep condition for control over energy-efficient networks,"
    IEICE Technical Report, Communication Quality, Vol. 116, No. 403, CQ2016-102, pp. 69-74, 2017. (in Japanese)
  2. Naoki Hanaya, Manabu Yoshino, Ken-Ichi Suzuki and Ryogo Kubo,
    "Effect assessment of longer cycle time of XG-PON DBA,"
    Proceedings of the 3rd IEICE Communication Quality Workshop, p. 37, 2017. (in Japanese)
  3. Jin Hoshino, Takahiro Funakoshi and Ryogo Kubo,
    "Time-delay compensation of networked control systems with tamper detection observer,"
    Proceedings of the 3rd IEICE Communication Quality Workshop, p. 38, 2017. (in Japanese)
  4. Takuto Fujimoto, Takuya Uesugi and Ryogo Kubo,
    "A study of optical power loss compensation using SOA for T-band multicast transmission,"
    Proceedings of the 3rd IEICE Communication Quality Workshop, p. 40, 2017. (in Japanese)
  5. Ryosuke Hotchi, Hosho Chibana and Ryogo Kubo,
    "Time-delay compensation for AQM using disturbance observer,"
    Proceedings of the 3rd IEICE Communication Quality Workshop, p. 43, 2017. (in Japanese)
  6. Yoshihiro Fujie, Osamu Mizuno, Satoshi Kai, Ryogo Kubo and Nobuhisa Kobayashi,
    "Security guideline development approach for new energy services provision,"
    Proceedings of the 2017 IEEJ Annual Meeting, 4-S16-2, 2017. (in Japanese)
  7. Takahiro Funakoshi and Ryogo Kubo,
    "Effect of sleep conditions on state estimation using Kalman filter in networked control with sleep technique,"
    Proceedings of the 2017 IEICE General Conference, Vol. 2, p. 238, 2017. (in Japanese)
  8. Takahiro Kikuchi and Ryogo Kubo,
    "Effects of target delay variation in variable gain PI-based ONU sleep control with anti-windup technique,"
    Proceedings of the 2017 IEICE General Conference, Vol. 2, p. 319, 2017. (in Japanese)
  9. Nobuhiko Itoh, Takanori Iwai and Ryogo Kubo,
    "Network resource control for guaranteeing IoT application deadline in mobile networks,"
    IEICE Technical Report, Communication Quality, Vol. 117, No. 68, CQ2017-16, pp. 13-18, 2017. (in Japanese)
  10. Hiroyuki Tsuda, Ryogo Kubo, Katsumi Yoshizawa, Yasunori Tomomatsu, Makoto Sudo and Tadashi Hajikano,
    "Research and development of photonic network technology using T/O-band (1),"
    Proceedings of the 2017 IEICE Society Conference, Vol. 2, p. 167, 2017. (in Japanese)
  11. Ryogo Kubo, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu and Katsumi Yoshizawa,
    "Research and development of photonic network technology using T/O-band (2),"
    Proceedings of the 2017 IEICE Society Conference, Vol. 2, p. 168, 2017. (in Japanese)
  12. Jin Hoshino and Ryogo Kubo,
    "Experimental validation of networked control system using Smith predictor and tamper detection observer,"
    Proceedings of the 2017 IEICE Society Conference, Vol. 2, p. 182, 2017. (in Japanese)
  13. Ryosuke Hotchi and Ryogo Kubo,
    "Effect of controller model parameter mismatch in AQM with butterfly-shaped PDC,"
    Proceedings of the 2017 IEICE Society Conference, Vol. 2, p. 184, 2017. (in Japanese)
  14. Kenta Yamada, Jin Hoshino and Ryogo Kubo,
    "Path selection algorithm for tamper-tolerant networked control system using redundant paths,"
    Proceedings of the 4th IEICE Communication Quality Workshop, P1-1, 2017. (in Japanese)
  15. Dominik Mildt, Marco Cupelli and Ryogo Kubo,
    "Model predictive control for microgrid power management under forecast uncertainties,"
    Papers of the IEEJ Joint Technical Meeting on Systems and Smart Facilities, ST-17-51/SMF-17-50, 2017.
  16. Takuto Fujimoto, Takahiro Shobudani, Ryogo Kubo, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu and Katsumi Yoshizawa,
    "A study of adaptive gain control in T-band multicast wavelength routing system,"
    Proceedings of the 31st IEICE Optical Communication Systems Symposium, P-22, 2017. (in Japanese)

Patents

  1. To provide a communication system, a subscriber line termination device and the subscriber line terminal station device, JP 6787853
  2. Communication system and method, JP 6792530

Awards

  1. Taiki Nasu,
    Fujiwara Award, Fujiwara Scholarship Fund, 2017.
  2. Yoshiaki Maneyama and Ryogo Kubo,
    Telecom System Technology Award (Encouragement Award), Telecommunications Advancement Foundation, 2017.
  3. Ryogo Kubo,
    Ando Incentive Prize for the Study of Electronics, The Foundation of Ando Laboratory, 2017.
  4. Ryosuke Hotchi,
    Finalist of NOLTA 2017 Best Student Paper Award, The 2017 International Symposium on Nonlinear Theory and its Applications (NOLTA 2017), 2017.

Miscellaneous

  1. (Web Seminar)
    Ryogo Kubo,
    "Cyber-physical ICT for smart cities -Emerging requirements in control and communications-,"
    IEEE Standards Association Webinar, March 2017.
  2. (Exhibition)
    Keio University, Pioneer Micro Technology Corporation, Koshin Kogaku Co., Ltd., and Optoquest Co., Ltd.,
    "Photonic networks using broad wavelength range of T-band and O-band,"
    The NICT Photonic Network Symposium 2017, March 2017.
  3. (Press Release)
    Keio University, Pioneer Micro Technology Corporation, Koshin Kogaku Co., Ltd., and Optoquest Co., Ltd.,
    "World's first successful transmission of ultra-high-definition (4K) videos through a newly defined wavelength band named "T-band","
    Keio Press Release, September 22nd, 2017.
  4. (Exhibition)
    Ryogo Kubo,
    "Cyber-physical ICT: Integrated communication and control technologies,"
    The 18th Annual Keio Science and Technology Exhibition, KEIO TECHNO-MALL 2017, December 2017.
  5. (Exhibition)
    Hiroyuki Tsuda and Ryogo Kubo,
    "Research and development on photonic networks using broad wavelength range of T-band and O-band,"
    The 18th Annual Keio Science and Technology Exhibition, KEIO TECHNO-MALL 2017, December 2017.
  6. (Exhibition)
    Keio University, Pioneer Micro Technology Corporation, Koshin Kogaku Co., Ltd., and Optoquest Co., Ltd.,
    "R&D on photonic networks using broad wavelength range of T-band and O-band,"
    The 31st IEICE Optical Communication Systems Symposium, December 2017.

2016

Book Chapters

  1. Osamu Mizuno, Ryogo Kubo, Satoshi Kai, Nobuhisa Kobayashi, Yoshikuni Sato, Yoshizumi Serizawa , Takashi Noma, Yoshihiro Fujie, Kenji Yokoyama and Kenzo Yoshimatsu,
    "Knowledge on security for service implementation,"
    Required Knowledge to Build Energy Service Platform Based on International Standards for Electric Power Suppliers and Customers, pp. 377-447, Ohmsha, December 2016. (in Japanese)

Journal Papers (Refereed)

  1. Nazirul Afham Idris, Katsumi Yoshizawa, Yasunori Tomomatsu, Makoto Sudo, Tadashi Hajikano, Ryogo Kubo, Georgios Zervas and Hiroyuki Tsuda,
    "Full-mesh T- and O-band wavelength router based on arrayed waveguide gratings,"
    OSA Optics Express, Vol. 24, No. 1, pp. 672-686, January 2016.
  2. Nazirul Afham Idris, Naokatsu Yamamoto, Kouichi Akahane, Katsumi Yoshizawa, Yasunori Tomomatsu, Makoto Sudo, Tadashi Hajikano, Ryogo Kubo, Takuya Uesugi, Takahiro Kikuchi and Hiroyuki Tsuda,
    "A WDM/TDM access network based on broad T-band wavelength resource using quantum dot semiconductor devices,"
    IEEE Photonics Journal, Vol. 8, No. 1, 7901510, February 2016.
  3. Naoki Motoi and Ryogo Kubo,
    "Human-machine cooperative grasping/manipulating system using force-based compliance controller with force threshold,"
    IEEJ Journal of Industry Applications, Vol. 5, No. 2, pp. 39-46, March 2016.
  4. Ryusuke Imai and Ryogo Kubo,
    "Experimental validation of communication disturbance observer for networked control systems with information losses,"
    IEICE Communications Express, Vol. 5, No. 4, pp. 102-107, April 2016.
  5. Takahiro Kikuchi and Ryogo Kubo,
    "Proportional-integral and proportional-integral-derivative-based cyclic sleep controllers with anti-windup technique for energy-efficient and delay-aware passive optical networks,"
    JSAP Japanese Journal of Applied Physics, Vol. 55, No. 8S3, 08RB02, August 2016.
  6. Daisuke Murayama, Ken-Ichi Suzuki, Ryogo Kubo and Masaaki Ikehara,
    "Dynamic bandwidth allocation supporting diversified queue status reporting for EPON systems,"
    IEEE/OSA Journal of Optical Communications and Networking, Vol. 8, No. 8, pp. 530-539, August 2016.

Conference Talks (Invited)

  1. Yasunori Tomomatsu, Toshio Yamanori, Takashi Endo, Ryogo Kubo, Hiroyuki Tsuda, Katsumi Yosizawa and Makoto Sudo,
    "Development and application of a wideband tunable laser for 1.0-1.3 μm band,"
    Proceedings of the 2016 IEICE General Conference, Vol. 1, p. 143, 2016. (in Japanese) (requested talk)
  2. Ryogo Kubo,
    "Integrated communications and control technologies for smart infrastructure and applications,"
    The IEEE SmartGridComm Workshop on Smart City Infrastructure and Applications, SmartcityInfra 2016, 2016. (keynote speech)

Conference Talks (Refereed)

  1. Takahiro Funakoshi and Ryogo Kubo,
    "Cyclic sleep control of network interfaces in feedback path for energy-efficient networked control systems,"
    Proceedings of the 2nd IEEJ International Workshop on Sensing, Actuation, Motion Control, and Optimization, SAMCON 2016, V-6, pp. 1-2, 2016.
  2. Takahiro Kikuchi and Ryogo Kubo,
    "Variable gain PI-based cyclic sleep control with anti-windup technique for QoS-aware and energy-efficient Ethernet PONs,"
    Proceedings of the 21st Optoelectronics and Communications Conference/International Conference on Photonics in Switching 2016, OECC/PS 2016, WA2-12, pp. 1-3, 2016.
  3. Jin Hoshino, Hitoshi Kojima, Takahiro Funakoshi, Ryusuke Imai and Ryogo Kubo,
    "Secure networked motion control using tampering detection observer,"
    Proceedings of the 31st International Technical Conference on Circuits/Systems, Computers and Communications, ITC-CSCC 2016, pp. 613-616, 2016.
  4. Takahiro Funakoshi and Ryogo Kubo,
    "Burst data transmission and time-delay compensation for energy-efficient networked motion control,"
    Proceedings of the 31st International Technical Conference on Circuits/Systems, Computers and Communications, ITC-CSCC 2016, pp. 617-620, 2016.
  5. Ryosuke Hotchi, Hosho Chibana and Ryogo Kubo,
    "Active queue management using remote congestion controller with model-free butterfly-shaped perfect delay compensator,"
    Proceedings of the 31st International Technical Conference on Circuits/Systems, Computers and Communications, ITC-CSCC 2016, pp. 755-758, 2016.

Conference Talks (Non-refereed)

  1. Takahiro Kikuchi and Ryogo Kubo,
    "Variable gain design of PI controller with anti-windup technique for ONU sleep control,"
    IEICE Technical Report, Communication Systems, Vol. 115, No. 406, CS2015-74, pp. 7-12, 2016. (in Japanese)
  2. Hosho Chibana and Ryogo Kubo,
    "Multistage implementation of a disturbance-observer-based queue management algorithm for TCP/AQM networks,"
    IEICE Technical Report, Communication Quality, Vol. 115, No. 408, CQ2015-98, pp. 31-36, 2016. (in Japanese)
  3. Ryusuke Imai and Ryogo Kubo,
    "A model-based information-loss compensator for networked control systems,"
    IEICE Technical Report, Communication Quality, Vol. 115, No. 408, CQ2015-102, pp. 55-60, 2016. (in Japanese)
  4. Ryogo Kubo, Osamu Mizuno, Satoshi Kai, Nobuhisa Kobayashi, Kenzo Yoshimatsu, Mitsunari Uozumi and Takashi Noma,
    "Cyber security issues and measures towards energy services in the IoT era,"
    Papers of the IEEJ Technical Meeting on Smart Facilities, SMF-16-011, 2016. (in Japanese)
  5. Takahiro Funakoshi, Ryusuke Imai and Ryogo Kubo,
    "Performance evaluation of dynamic send data selection in networked control with time-varying delays,"
    Proceedings of the 2016 IEICE General Conference, Vol. 2, p. 392, 2016. (in Japanese)
  6. Mitsunari Uozumi, Nobuhisa Kobayashi and Ryogo Kubo,
    "Security requirements and interoperability in the energy services for customers,"
    Proceedings of the 2016 IEEJ Annual Meeting, Vol. 4, pp. 10-13, 4-S16-4, 2016. (in Japanese)
  7. Yoshihiro Fujie, Ryogo Kubo, Osamu Mizuno, Satoshi Kai, Kenzo Yoshimatsu, Mitsunari Uozumi and Takashi Noma,
    "Assessment of smart grid security requirement and deployment to energy services,"
    Papers of the IEEJ Technical Meeting on Smart Facilities, SMF-16-028, 2016. (in Japanese)
  8. Takuto Fujimoto, Takuya Uesugi and Ryogo Kubo,
    "Performance evaluation of energy-efficient wavelength allocation for datacenters considering wavelength switching time of T-band wavelength tunable laser,"
    Proceedings of the 1st IEICE Communication Quality Student Workshop, p. 9, 2016. (in Japanese)
  9. Jin Hoshino, Hitoshi Kojima, Takahiro Funakoshi, Ryusuke Imai and Ryogo Kubo,
    "Impact assessment of tamper signal characteristics in secure control systems with tamper detection observer,"
    IEICE Technical Report, Communication Quality, Vol. 116, No. 202, CQ2016-55, pp. 39-44, 2016. (in Japanese)
  10. Takuto Fujimoto, Takuya Uesugi, Ryogo Kubo, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu and Katsumi Yoshizawa,
    "Performance evaluation of a T-band multicast communication system for diversified optical network services,"
    Proceedings of the 2016 IEICE Society Conference, Vol. 2, p. 261, 2016. (in Japanese)
  11. Ryosuke Hotchi, Hosho Chibana and Ryogo Kubo,
    "Model-free delay compensation using butterfly-shaped PDC for AQM with fluctuating control delays,"
    Proceedings of the 2016 IEICE Society Conference, Vol. 2, p. 266, 2016. (in Japanese)
  12. Jin Hoshino, Hitoshi Kojima, Takahiro Funakoshi, Ryusuke Imai and Ryogo Kubo,
    "Impact assessment of network delays in secure control systems with tamper detection observer,"
    Proceedings of the 2016 IEICE Society Conference, Vol. 2, p. 267, 2016. (in Japanese)
  13. Takahiro Kikuchi and Ryogo Kubo,
    "Disturbunce-observer-based ONU sleep control for energy-efficient Ethernet PONs,"
    Proceedings of the 2nd IEICE Communication Quality Workshop, p. 25, 2016. (in Japanese)
  14. Takahiro Funakoshi and Ryogo Kubo,
    "A power-saving method of communication interfaces for control systems considering send data variation,"
    Proceedings of the 2nd IEICE Communication Quality Workshop, p. 26, 2016. (in Japanese)
  15. Osamu Mizuno, Ryogo Kubo, Satoshi Kai, Yoshihiro Fujie and Nobuhisa Kobayashi,
    "Security issues for energy services provision and electric markets development,"
    Papers of the IEEJ Technical Meeting on Smart Facilities, SMF-16-039, 2016. (in Japanese)

Patents

  1. Transmission control method and communication system, JP 6542715
  2. Optical communication system and optical communication method and transmission apparatus, JP 6693851

Awards

  1. Ryogo Kubo,
    Young Researcher Award, Kenjiro Takayanagi Foundation, 2016.
  2. Takuto Fujimoto,
    Workshop Research Encouragement Award, The 1st IEICE Communication Quality Student Workshop, 2016.

Miscellaneous

  1. (Exhibition)
    Keio University, Pioneer Micro Technology Corporation, Optoquest Co., Ltd., and Koshin Kogaku Co., Ltd.,
    "R&D on photonic networks using broad wavelength range of T-band and O-band,"
    The 21st Optoelectronics and Communications Conference/International Conference on Photonics in Switching 2016, OECC/PS 2016, July 2016.
  2. (Exhibition)
    Ryogo Kubo,
    "Cyber-physical ICT: Fusion of communications and control technologies,"
    The 17th Annual Keio Science and Technology Exhibition, KEIO TECHNO-MALL 2016, December 2016.
  3. (Exhibition)
    Hiroyuki Tsuda and Ryogo Kubo,
    "R&D on photonic networks using broad wavelength range of T-band and O-band,"
    The 17th Annual Keio Science and Technology Exhibition, KEIO TECHNO-MALL 2016, December 2016.
  4. (Exhibition)
    Keio University, Pioneer Micro Technology Corporation, Koshin Kogaku Co., Ltd., and Optoquest Co., Ltd.,
    "R&D on photonic networks using broad wavelength range of T-band and O-band,"
    The 30th IEICE Optical Communication Systems Symposium, December 2016.

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