Hiroshi Hasegawa

217 papers B 20C 8Misc 8Journal 88Unranked 93

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	A benchmarking framework for PON-based fronthaul network design. CoRR Egemen Erbayat, Gustavo B. Figueiredo, Shih-Chun Lin, Motoharu Matsuura, Hiroshi Hasegawa, Suresh Subramaniam
2026	J	`jnl`	Network Model Design for Major Metropolitan Areas Using Regional Railways Information in Japan for Beyond 5G Research. IEICE Trans. Commun. Takuji Tachibana, Yusuke Hirota, Takehiro Tsuritani, Hiroshi Hasegawa
2025	—	`conf`	A Hybrid FXC-WXC Network Architecture with Low-Cost Pluggable Transceivers for Metro-Scale Optical Networks. ECOC Shunya Shimoi, Hayato Yuasa, Taisei Sekizuka, Takuma Kuno, Yojiro Mori, Wakako Maeda, Shigeyuki Yanagimachi, Hiroshi Hasegawa
2025	J	`jnl`	DRAMA-PRO+: disaster recovery algorithm with mitigation awareness for protected translucent elastic optical networks. J. Opt. Commun. Netw. Rujia Zou, Shih-Chun Lin, Motoharu Matsuura, Hiroshi Hasegawa, Gustavo B. Figueiredo, Suresh Subramaniam
2025	—	`conf`	Demonstration of Multigranular-Routing Layered Network with Impairment-Aware Modulation Format Selection. OFC Hayato Yuasa, Takuma Kuno, Taisei Sekizuka, Yojiro Mori, Shih-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Wakako Maeda, Shigeyuki Yanagimachi, Hiroshi Hasegawa
2025	J	`jnl`	Digital Twin-Empowered Deep Reinforcement Learning for Intelligent VNF Migration in Edge-Core Networks. CoRR Faisal Ahmed, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2025	B	`conf`	Enhancing Network Traffic Analysis in O-RAN Enabled Next-Generation Networks Through Federated Multi-Task Learning. WCNC Faisal Ahmed, Myungjin Lee, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2025	B	`conf`	Federated Deep Reinforcement Learning-Driven O-RAN for Automatic Multirobot Reconfiguration. NOMS Faisal Ahmed, Myungjin Lee, Shao-Yu Lien, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2025	J	`jnl`	Federated Deep Reinforcement Learning-Driven O-RAN for Automatic Multirobot Reconfiguration. CoRR Faisal Ahmed, Myungjin Lee, Shao-Yu Lien, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2025	B	`conf`	From Tabimae Mind Search System to EmoTABI: Introduction of Atmosphere Emotion Extraction and the Verification. KES Ryunosuke Nishio, Teppei Honda, Hiroshi Hasegawa
2025	B	`conf`	Intelligent Edge Resource Provisioning for Scalable Digital Twins of Autonomous Vehicles. GLOBECOM Mohammad Sajid Shahriar, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2025	J	`jnl`	Intelligent Edge Resource Provisioning for Scalable Digital Twins of Autonomous Vehicles. CoRR Mohammad Sajid Shahriar, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2025	—	`conf`	Layered Multiband Network Architecture with Spatially Parallel Bypass for Selective and Cost-Efficient SDM Deployment. ECOC Hayato Yuasa, Takuma Kuno, Yojiro Mori, Shih-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Wakako Maeda, Shigeyuki Yanagimachi, Hiroshi Hasegawa
2025	J	`jnl`	Metropolitan Area Network Model Design Algorithm Using Regional Railways Information and Daily Movement Data for Beyond 5G Research. IEEE Access Koga Nakamura, Shotaro Kitano, Yusuke Hirota, Takehiro Tsuritani, Hiroshi Hasegawa, Takuji Tachibana
2025	B	`conf`	Multi-Domain Computation-Aware Resource Slicing and Orchestration for 6G Programmable Converged Wireless-Optical Networks. NOMS Shih-Chun Lin, Chia-Hung Lin, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa
2025	B	`conf`	Multi-Tenant Traffic Prioritization and On-Demand QoS Provisioning in Digital Twin-Empowered Programmable Edge Networks. NOMS Mohammad Sajid Shahriar, Faisal Ahmed, Genshe Chen, Khanh D. Pham, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2025	B	`conf`	Optimizing Handover Decisions in Multi-Connectivity Enabled Terrestrial-Satellite Integrated Networks: A Deep Reinforcement Learning Approach. WCNC Faisal Ahmed, Myungjin Lee, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2025	—	`conf`	Real-World Logistics Object Detection with YoloV12-OBBBiFPNCBAM: A Lightweight and Accurate Approach. ICFSP Thien-Van Tran, Ngoc-Tam Bui, Phan Xuan Tan, Hiroshi Hasegawa
2024	J	`jnl`	Bandwidth Abundant Optical Networking Enabled by Spatially-Jointed and Multi-Band Flexible Waveband Routing. IEICE Trans. Commun. Hiroshi Hasegawa
2024	—	`conf`	Capacity-Bound Evaluation and Routing and Spectrum Assignment for Elastic Optical Path Networks with Distance-Adaptive Modulation. OFC Kenji Cruzado, Yojiro Mori, Shih-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Hiroshi Hasegawa
2024	—	`conf`	Cost-Effective Capacity Enhancement of Survivable Optical Networks by Supplemental Band Expansion and Backup Resource Sharing. OFC Daisuke Saito, Yojiro Mori, Kohei Hosokawa, Shigeyuki Yanagimachi, Hiroshi Hasegawa
2024	—	`conf`	DRAMA-DC: Disaster Recovery Algorithm with Mitigation Awareness in Data Center EONs. ONDM Rujia Zou, Shih-Chun Lin, Motoharu Matsuura, Hiroshi Hasegawa, Suresh Subramaniam
2024	J	`jnl`	Demodulation Framework Based on Machine Learning for Unrepeated Transmission Systems. IEICE Trans. Commun. Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa
2024	—	`conf`	Development of a TRIZ-Based Design Methodology for Digital Transformation. TFC (2) Yuki Otsuka, Hiroshi Hasegawa
2024	—	`conf`	Digital Twin Enabled Data-Driven Approach for Traffic Efficiency and Software-Defined Vehicular Network Optimization. VTC Fall Mohammad Sajid Shahriar, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2024	J	`jnl`	Digital Twin Enabled Data-Driven Approach for Traffic Efficiency and Software-Defined Vehicular Network Optimization. CoRR Mohammad Sajid Shahriar, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2024	J	`jnl`	FedAuxHMTL: Federated Auxiliary Hard-Parameter Sharing Multi-Task Learning for Network Edge Traffic Classification. CoRR Faisal Ahmed, Myungjin Lee, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2024	J	`jnl`	Flexible waveband routing node architecture for spatial-division and multi-band optical networks [Invited]. J. Opt. Commun. Netw. Hiroshi Hasegawa
2024	—	`conf`	Fronthaul Network Architecture and Design For Optically Powered Passive Optical Networks. ICC Egemen Erbayat, Shrinivas Petale, Shih-Chun Lin, Motoharu Matsuura, Hiroshi Hasegawa, Suresh Subramaniam
2024	—	`conf`	Intra-datacenter Optical Circuit Switch Architecture with Multi-band Transmission Technologies. OFC Takuma Kuno, Reiji Higuchi, Kazato Satake, Hayato Yuasa, Yojiro Mori, Hiroshi Hasegawa
2024	J	`jnl`	Introduction to the JOCN Special Issue on Spatial Parallelism for Next-Generation High-Capacity Transport Networks. J. Opt. Commun. Netw. Yvan Pointurier, Hiroshi Hasegawa, Nihel Benzaoui, Jesse E. Simsarian
2024	J	`jnl`	Optical networking that exploits massive wavelength/spectrum and spatial parallelisms. J. Opt. Commun. Netw. Hiroshi Hasegawa
2024	J	`jnl`	PRODIGY+: a robust progressive upgrade approach for elastic optical networks. J. Opt. Commun. Netw. Shrinivas Petale, Aleksandra Knapinska, Egemen Erbayat, Piotr Lechowicz, Krzysztof Walkowiak, Shih-Chun Lin, Motoharu Matsuura, Hiroshi Hasegawa, Suresh Subramaniam
2024	J	`jnl`	Prioritized Multi-Tenant Traffic Engineering for Dynamic QoS Provisioning in Autonomous SDN-OpenFlow Edge Networks. CoRR Mohammad Sajid Shahriar, Faisal Ahmed, Genshe Chen, Khanh D. Pham, Suresh Subramaniam, Motoharu Matsuura, Hiroshi Hasegawa, Shih-Chun Lin
2023	Misc	`conf`	4.71-Pbps-Throughput Multiband OXC Based on Space- and Wavelength-Granular Hybrid Switching. PSC Takuma Kuno, Takuro Ochiai, Reiji Higuchi, Kazato Satake, Kenji Cruzado, Ryuji Munakata, Yojiro Mori, Shih-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Hiroshi Hasegawa
2023	—	`conf`	Architecture and Performance Evaluation of Bundled-path-routing Multi-band Optical Networks. OFC Ryuji Munakata, Takuma Kuno, Yojiro Mori, Shih-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Hiroshi Hasegawa
2023	—	`conf`	Cost-effective Network Capacity Enhancement with Multi-band Virtual Bypass Links. OFC Daisuke Saito, Yojiro Mori, Kohei Hosokawa, Shigeyuki Yanagimachi, Hiroshi Hasegawa
2023	J	`jnl`	Cost-effective network capacity upgrade by heterogeneous wavelength division multiplexing density with bandwidth-variable virtual direct links. JOCN Kazuki Hayashi, Yojiro Mori, Hiroshi Hasegawa
2023	Misc	`conf`	Effective Capacity Estimation Based on Cut-Set Load Analysis in Optical Path Networks. PSC Kenji Cruzado, Yojiro Mori, Shih-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Hiroshi Hasegawa
2023	J	`jnl`	Metropolitan Area Network Model Design Using Regional Railways Information for Beyond 5G Research. IEICE Trans. Commun. Takuji Tachibana, Yusuke Hirota, Keijiro Suzuki, Takehiro Tsuritani, Hiroshi Hasegawa
2023	B	`conf`	PRODIGY: A Progressive Upgrade Approach for Elastic Optical Networks. GLOBECOM Shrinivas Petale, Shih-Chun Lin, Motoharu Matsuura, Hiroshi Hasegawa, Suresh Subramaniam
2023	J	`jnl`	Policy-Based Grooming, Route, Spectrum, and Operational Mode Planning in Dynamic Multilayer Networks. IEICE Trans. Commun. Takafumi Tanaka, Hiroshi Hasegawa
2023	B	`conf`	Redefinition creative and inventive design support system: DX application design process. KES Yuki Otsuka, Hiroshi Hasegawa
2023	B	`conf`	TABIMAE Mind Search System: Exploring Best Tourist Sightseeing Spots Match Mental Values before Travel. KES Teppei Honda, Kimika Ymamoto, Hiroshi Hasegawa
2023	Misc	`conf`	Transceiver-Impairment Mitigation Enabled by Adaptive Symbol Decision with Neural Networks. PSC Takuro Ochiai, Reiji Higuchi, Takuma Kuno, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa
2022	B	`conf`	A Preliminary Cyber-Physical Study of a VR Training Material for Engineering Students to Give a Presentation in English. KES Taishi Akimoto, Kayoko H. Murakami, Atsuko K. Yamazaki, Tsukasa Yamanaka, Hiroshi Hasegawa
2022	J	`jnl`	Architecture and performance evaluation of fiber-granularity routing networks with supplemental grooming by wavelength conversion. JOCN Takeshi Matsuo, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa
2022	—	`conf`	Constellation-Shaped 64QAM Robust against Phase Noise in Intra-Datacenter Networks. OECC/PSC Jun Sakano, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa
2022	J	`jnl`	DRAMA+: Disaster Management With Mitigation Awareness for Translucent Elastic Optical Networks. IEEE Trans. Netw. Serv. Manag. Rujia Zou, Hiroshi Hasegawa, Masahiko Jinno, Suresh Subramaniam
2022	—	`conf`	Demonstration of High-Throughput Intra-Datacenter Switches Using Interleaved AWGs for Nyquist WDM. OFC Takuma Kuno, Takumi Mitsuya, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2022	—	`conf`	Design and Dynamic Control of Fiber-Granular Routing Networks with Next-Generation Optical Paths. OFC Takeshi Matsuo, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa
2022	J	`jnl`	Design and evaluation of a reconfigurable optical add-drop multiplexer with flexible wave-band routing in SDM networks. JOCN Takuma Kuno, Yojiro Mori, Suresh Subramaniam, Masahiko Jinno, Hiroshi Hasegawa
2022	—	`conf`	Efficient Network Capacity Expansion by Differentiated WDM-Density with Bandwidth-Variable Virtual Direct Links. FNWF Kazuki Hayashi, Yojiro Mori, Hiroshi Hasegawa
2022	J	`jnl`	Introduction to the GLOBECOM 2022 Optical Networks and Systems Symposium Special Issue. JOCN Hiroshi Hasegawa, Jason Jue, Krishna M. Sivalingam, Suresh Subramaniam
2022	—	`conf`	Optical Performance Monitoring Using Adaptive FIR Filters for Constellation-Shaped Higher-Order QAM Signals. OECC/PSC Naoki Tsuchida, Takuma Kuno, Jun Sakano, Yojiro Mori, Hiroshi Hasegawa
2022	—	`conf`	Power-saving Aware SDM Photonic Node with the Throughput Scalable to over Peta bit. OECC/PSC Fumikazu Inuzuka, Hiroshi Hasegawa, Kohki Shibahara, Hidenori Takahashi, Takehiro Tsuritani, Kazunori Seno, Naru Nemoto, Emmanuel Le Taillandier de Gabory, Shigeyuki Yanagimachi, Taiji Sakamoto, Kazuhide Nakajima, Masanori Takahashi, Ryuichi Sugizaki, Ryo Nagase, Ken-ichi Sato, Yutaka Miyamoto
2022	—	`conf`	Spatially-Jointed Flexible Waveband Routing Optical Networks Adopting Shared Path Protection. RNDM Ryuji Munakata, Yojiro Mori, Suresh Subramaniam, Masahiko Jinno, Hiroshi Hasegawa
2021	—	`conf`	Alzheimer Dementia Detection based on Circadian Rhythm Disorder of Heartrate. LifeTech Naoya Matsuda, Iko Nakari, Ryotaro Arai, Hiroyuki Sato, Keiki Takadama, Masanori Hirose, Hiroshi Hasegawa, Makoto Shiraishi, Takahide Matsuda
2021	—	`conf`	DRAMA: Disaster Management Algorithm with Mitigation Awareness for Elastic Optical Networks. DRCN Rujia Zou, Hiroshi Hasegawa, Suresh Subramaniam
2021	B	`conf`	DeepDRAMA: Deep Reinforcement Learning-based Disaster Recovery with Mitigation Awareness in EONs. GLOBECOM Rujia Zou, Nathaniel Bury, Hiroshi Hasegawa, Masahiko Jinno, Suresh Subramaniam
2021	—	`conf`	Design and Manufacture a Cheap Equipment to Measure Human Arm Motion in Developing Countries. ICRCA Thanh-Trung Nguyen, Ngoc-Tam Bui, Hiroshi Hasegawa
2021	—	`conf`	Design and Performance Evaluation of Resilient Optical Path Networks That Adopt Spatially-Jointed Flexible Waveband Routing. ONDM Ryuji Munakata, Yojiro Mori, Suresh Subramaniam, Masahiko Jinno, Hiroshi Hasegawa
2021	J	`jnl`	Design and control of highly spectrally efficient photonic networks enabled by fiber-granular routing on overlaid ring-shaped topologies. JOCN Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Paolo Monti
2021	J	`jnl`	Enhancing the flexibility and functionality of SCNs: demonstration of evolution toward any-core-access, nondirectional, and contentionless spatial channel cross-connects [Invited]. JOCN Masahiko Jinno, Tsubasa Ishikawa, Takahiro Kodama, Hiroshi Hasegawa, Suresh Subramaniam
2021	—	`conf`	Experimental Evaluation of Optical Cross-Connects with Flexible Waveband Routing Function for SDM Networks. OFC Takuma Kuno, Yojiro Mori, Suresh Subramaniam, Masahiko Jinno, Hiroshi Hasegawa
2021	J	`jnl`	Fragmentation-Minimized Periodic Network-Bandwidth Expansion Employing Aligned Channel Slot Allocation in Flexible Grid Optical Networks. IEICE Trans. Commun. Hiroshi Hasegawa, Takuma Yasuda, Yojiro Mori, Ken-ichi Sato
2020	J	`jnl`	Architecture and Design of Coarse/Fine Hybrid Granular Routing Optical Networks. IEICE Trans. Commun. Yusaku Ito, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2020	J	`jnl`	Assessment of Optical Node Architectures for Building Next Generation Large Bandwidth Networks. IEICE Trans. Commun. Mungun-Erdene Ganbold, Takuma Yasuda, Yojiro Mori, Hiroshi Hasegawa, Fumikazu Inuzuka, Akira Hirano, Ken-ichi Sato
2020	—	`conf`	Demonstration of 4.3 Pbps Optical Circuit Switching for Intra-Datacentre Networks Based on Spatial Super-Channels. ECOC Eiji Honda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2020	J	`jnl`	Design of seamlessly and limitlessly expandable OXC and verification tests on its versatile applicability. JOCN Ryota Hashimoto, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2020	—	`conf`	Dynamically Controlled Flexible-Grid Networks Based on Semi-Flexible Spectrum Assignment and Network-State-Value Evaluation. OFC Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2020	—	`conf`	High-Throughput Optical Circuit Switch for Intra-Datacenter Networks Based on Spatial Super-Channels. OFC Eiji Honda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2020	—	`conf`	High-Throughput and High-Port-Count Optical Cross- Connents Using Flexible Waveband Routing. ONDM Takuma Kuno, Yojiro Mori, Suresh Subramaniam, Masahiko Jinno, Hiroshi Hasegawa
2020	—	`conf`	Joint Pre-emphasis and Partial-response Coding for Spectrum Narrowing Caused by Repeated Optical-node Traversal in Ultra-dense WDM Networks. ECOC Kazuya Okamura, Yojiro Mori, Hiroshi Hasegawa
2020	J	`jnl`	Link-protection and FIPP p-cycle designs in translucent elastic optical networks. JOCN Rujia Zou, Hiroshi Hasegawa, Masahiko Jinno, Suresh Subramaniam
2020	J	`jnl`	Transmission-Quality-Aware Online Network Design and Provisioning Enabled by Optical Performance Monitoring. IEICE Trans. Commun. Keisuke Kayano, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Shoichiro Oda, Setsuo Yoshida, Takeshi Hoshida
2019	J	`jnl`	Assessment of Node- and Link- Level Blocking and Creating Cost-Effective Networks in the Era of Large Bandwidth Services. IEICE Trans. Commun. Shuhei Yamakami, Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Fumikazu Inuzuka, Akira Hirano
2019	—	`conf`	Demonstration of Quasi-Nyquist WDM Networks using Widely Deployed Wavelength-Selective Switches. OFC Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2019	—	`conf`	Design of and Resiliency Enhancement in Coarse/Fine Hybrid Granular Routing Optical Networks Based on Iterative Path-Pair-Loop Inflation. DRCN Keisuke Itakura, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2019	—	`conf`	Dynamic Control of Transparent Optical Networks with Adaptive State-Value Assessment Enabled by Reinforcement Learning. ICTON Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2019	J	`jnl`	Efficient Dynamic Routing and Spectrum Assignment for Multifiber Elastic Optical Networks. JOCN Jingxin Wu, Suresh Subramaniam, Hiroshi Hasegawa
2019	—	`conf`	Evaluation of WSS Characteristics in Highly Dense WDM Networks. OECC/PSC Kazuya Okamura, Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2019	—	`conf`	Feasibility Test of Large-Scale (1, 424×1, 424) Optical Circuit Switches Utilizing Commercially Available Tunable Lasers. OECC/PSC Eiji Honda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2019	J	`jnl`	Improved Optical Amplification Efficiency by Using Turbo Cladding Pumping Scheme for Multicore Fiber Optical Networks. IEICE Trans. Commun. Hitoshi Takeshita, Keiichi Matsumoto, Hiroshi Hasegawa, Ken-ichi Sato, Emmanuel Le Taillandier de Gabory
2019	B	`conf`	P-Cycle Design for Translucent Elastic Optical Networks. GLOBECOM Rujia Zou, Suresh Subramaniam, Hiroshi Hasegawa, Masahiko Jinno
2019	—	`conf`	Switching granularity and intra-node interconnection optimization for large scale optical nodes. OECC/PSC Hiroshi Hasegawa, Ken-ichi Sato
2019	—	`conf`	Verification of High Performance and Wide Applicability of Seamlessly Expandable and Limitless OXC. OFC Ryota Hashimoto, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2018	Misc	`conf`	A New Framework for Nation-Wide Networking in Future Datacenter-Traffic Centric Era. PSC Keisuke Kayano, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Fumikazu Inuzuka, Akira Hirano
2018	Misc	`conf`	Architecture and Design of Quasi-Nyquist WDM Networks with Flexible Grid Granular Switching. PSC Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2018	J	`jnl`	Design and Verification of Large-Scale Optical Circuit Switch Using ULCF AWGs for Datacenter Application. JOCN H. Nagai, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2018	J	`jnl`	Enhancing Protection Performance by Effectively Using Spectral Slots of Impairment-Aware Elastic Optical Networks [Invited]. JOCN Hitoshi Takeshita, Takefumi Oguma, Shinsuke Fujisawa, Yuta Suzuki, Baku Yatabe, Akio Tajima, Hiroshi Hasegawa, Ken-ichi Sato
2018	—	`conf`	Fragmentation-Minimized Transponder Upgrading Employing Channel Bandwidth Aligned Slot Allocation in Flexible Grid Optical Networks. OFC Hiroshi Hasegawa, Takuma Yasuda, Yojiro Mori, Ken-ichi Sato
2018	J	`jnl`	Joint Banding-Node Placement and Resource Allocation for Multigranular Elastic Optical Networks. JOCN Jingxin Wu, Maotong Xu, Suresh Subramaniam, Hiroshi Hasegawa
2018	—	`conf`	Novel Demodulation Framework Based on Quadrature Duo-Binary/Quaternary/Octernary Spectrum Shaping and MLSE for Mitigating Spectrum Narrowing Caused by Node Traversals. ECOC Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2018	Misc	`conf`	Spectral utilization efficient coarse granular routing optical networks with resiliency against multiple failures. ICIN Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2018	—	`conf`	Spectrally Efficient and Highly Resilient Grouped Routing Network Enhanced with Optical Performance Monitoring. OFC Keisuke Kayano, Hiroshi Saito, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Shoichiro Oda, Setsuo Yoshida, Takeshi Hoshida
2017	J	`jnl`	Algorithm for Raising OXC Port Count to Meet Traffic Growth at Minimum Cost. JOCN Kosuke Sato, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2017	J	`jnl`	Dynamic Path Provisioning and Disruption-Free Reoptimization Algorithms for Bandwidth on-Demand Services Considering Fairness. IEICE Trans. Commun. Masahiro Nakagawa, Hiroshi Hasegawa, Ken-ichi Sato
2017	—	`conf`	Dynamic control of coarse/fine hybrid granular routing optical networks. OFC Yusaku Ito, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2017	J	`jnl`	Fast Optical Circuit Switch for Intra-Datacenter Networking. IEICE Trans. Commun. Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Hiroyuki Matsuura, Kiyo Ishii, Haruhiko Kuwatsuka, Shu Namiki, Toshio Watanabe, Ken-ichi Sato
2017	—	`conf`	First Demonstration of Subsystem-Modular Optical Crossconnect Using Single-Module 6×6 WSS. ECOC Ryota Hashimoto, Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Keita Yamaguchi, Kazunori Seno, Kenya Suzuki
2017	J	`jnl`	Global ray-casting range image registration. IPSJ Trans. Comput. Vis. Appl. Linh Tao, Tam Bui, Hiroshi Hasegawa
2017	—	`conf`	Highly reliable large-scale optical cross-connect architecture utilizing M×M wavelength-selective switches. OFC Shuhei Yamakami, Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2017	B	`conf`	Joint Banding-Node Placement and Resource Allocation for Multi-Granular Elastic Optical Networks. GLOBECOM Jingxin Wu, Maotong Xu, Suresh Subramaniam, Hiroshi Hasegawa
2017	—	`conf`	Joint Pre-, Inline-, and Post-Compensation of Spectrum Narrowing Caused by Traversing Multiple Optical Nodes. ECOC Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2017	—	`conf`	Novel intra- and inter-datacenter converged network exploiting space- and wavelength-dimensional switches. OFC Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2017	—	`conf`	Optical tunable filter for gridless ROADM. OFC Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2017	—	`conf`	Parameter-Free Global Hybrid Point Based Range Image Registration. ICAIP Linh Tao, Tinh Nguyen, Hiroshi Hasegawa
2017	—	`conf`	Routing, fiber, band, and spectrum assignment (RFBSA) for multi-granular elastic optical networks. ICC Jingxin Wu, Maotong Xu, Suresh Subramaniam, Hiroshi Hasegawa
2017	J	`jnl`	Spectral Efficiency Maximization of Grouped Routing Optical Networks With Shared Protection. JOCN Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2017	J	`jnl`	Tipping Point for the Future Scalable OXC: What Size M × M WSS Is Needed? JOCN Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2016	—	`conf`	A compact OXC node architecture that exploits dynamic path bundling and routing. ONDM Tomohiro Ishikawa, Hiroshi Hasegawa, Suresh Subramaniam, Ken-ichi Sato
2016	—	`conf`	Algorithm for raising OXC port count to meet traffic growth at minimum-cost. OFC Kosuke Sato, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2016	J	`jnl`	Disruption-Free Expansion of Protected Optical Path Networks that Utilize Subsystem Modular OXC Nodes. JOCN Kosuke Sato, Hiroshi Hasegawa, Ken-ichi Sato
2016	J	`jnl`	Dynamic Router Performance Control Utilizing Support Vector Machines for Energy Consumption Reduction. IEEE Trans. Netw. Serv. Manag. Hiroshi Kawase, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2016	—	`conf`	Evaluation and performance modeling of two OXC architectures. Sarnoff Symposium Jingxin Wu, Maotong Xu, Suresh Subramaniam, Hiroshi Hasegawa
2016	—	`conf`	Global Hybrid Registration for 3D Constructed Surfaces using Ray-casting and Improved Self Adaptive Differential Evolution Algorithm. VISIGRAPP (4: VISAPP) Tao Ngoc Linh, Hiroshi Hasegawa, Tam Bui
2016	—	`conf`	Highly spectral efficient elastic optical network employing grouped optical path routing. OFC Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2016	J	`jnl`	Node Architecture and Design of Flexible Waveband Routing Optical Networks. JOCN Hiroshi Hasegawa, Suresh Subramaniam, Ken-ichi Sato
2016	J	`jnl`	Optimal nonuniform wavebanding in WDM mesh networks. Photonic Netw. Commun. Jingxin Wu, Suresh Subramaniam, Hiroshi Hasegawa
2016	—	`conf`	Spectrum utilization maximization in coarse granular optical routing networks that employ fine granular shared protection. DRCN Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2016	J	`jnl`	Survivable Grouped Routing Optical Networks with Dedicated Path Protection. IEICE Trans. Commun. Hiroshi Hasegawa, Yojiro Mori, Ken-ichi Sato
2016	—	`conf`	Tipping point for the future scalable OXC - What size MxM WSS is needed? OFC Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2015	—	`conf`	A novel routing and frequency slot assignment scheme that can adapt to transmission speed migration. OFC Zhishu Shen, Taiki Kusano, Hiroshi Hasegawa, Ken-ichi Sato
2015	B	`conf`	Comparison of OXC Node Architectures for WDM and Flex-Grid Optical Networks. ICCCN Jingxin Wu, Suresh Subramaniam, Hiroshi Hasegawa
2015	J	`jnl`	Criteria for Selecting Subsystem Configuration in Creating Large-Scale OXCs. JOCN Yasuhiro Tanaka, Hiroshi Hasegawa, Ken-ichi Sato
2015	—	`conf`	Demonstration of large-port-count and compact ROADM that exhibits virtual-C/D/C performance. OFC Shoichi Takashina, Hiroto Ishida, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
2015	J	`jnl`	Differential Reliability Path Accommodation Design and Reconfiguration in Virtualized Multi-Layer Transport Network. IEICE Trans. Commun. Akihiro Kadohata, Takafumi Tanaka, Atsushi Watanabe, Akira Hirano, Hiroshi Hasegawa, Ken-ichi Sato
2015	—	`conf`	Flexible waveband routing optical networks. ICC Hiroshi Hasegawa, Suresh Subramaniam, Ken-ichi Sato
2015	B	`conf`	Global Iterative Closet Point Using Nested Annealing for Initialization. KES Tao Ngoc Linh, Hiroshi Hasegawa
2015	J	`jnl`	Hardware Scale and Performance Evaluation of a Compact Subsystem Modular Optical Cross Connect That Adopts Tailored Add/Drop Architecture. JOCN Hiroto Ishida, Hiroshi Hasegawa, Ken-ichi Sato
2015	—	`conf`	Highly scalable subsystem modular OXC nodes that host tailored add/drop mechanism. OFC Hiroto Ishida, Hiroshi Hasegawa, Ken-ichi Sato
2015	J	`jnl`	Integrity Enhancement of Flexible/Semi-Flexible Grid Networks That Minimizes Disruption in Spectrum Defragmentation and Bitrate-Dependent Blocking. JOCN Zhishu Shen, Hiroshi Hasegawa, Ken-ichi Sato
2015	—	`conf`	Large scale optical cross-connect: Architecture, performance analysis, and feasibility demonstration. OFC Hiroshi Hasegawa, Ken-ichi Sato
2015	—	`conf`	Large-scale optical-switch prototype compactly implemented with novel functional configuration. OFC Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
2015	—	`conf`	Novel network control scheme that can substantially reduce link and node costs simultaneously. ECOC Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2015	—	`conf`	Optimal nonuniform wavebanding in WDM mesh networks. ONDM Jingxin Wu, Suresh Subramaniam, Hiroshi Hasegawa
2015	J	`jnl`	Pre-Adjustment Rerouting for Wavelength Defragmentation in Optical Transparent WDM Networks. IEICE Trans. Commun. Akihiro Kadohata, Atsushi Watanabe, Akira Hirano, Hiroshi Hasegawa, Ken-ichi Sato
2015	—	`conf`	Residual capacity aware dynamic control of GRE-based routing optical path networks under traffic growth model. OFC Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2015	—	`conf`	Resilient grouped routing optical networks with finely granular protection. ONDM Hiroshi Hasegawa, Yojiro Mori, Ken-ichi Sato
2015	Misc	`conf`	Router power reduction by active performance control realized with support vector machines. ICNC Hiroshi Kawase, Hiroshi Hasegawa, Ken-ichi Sato
2015	B	`conf`	Shape and Layout Understanding Method Using Brain Machine Interface for Idea Creation Support System. KES Hiroshi Hasegawa, Syogo Shibasaki, Yusuke Ito
2015	—	`conf`	Shared protected grouped optical path routing network design employing iterative path group relocation. RNDM@WMNC Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2015	—	`conf`	Wavelength path signalling for WSS/WBSS combined optical switches in hierarchical optical networks. ICTON Takaya Miyazawa, Takahiro Hirayama, Hiroaki Harai, Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2014	—	`conf`	A 204.8 Tbps throughput 64×64 optical cross-connect prototype that allows C/D/C add/drop. OFC Kensuke Takaha, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
2014	—	`conf`	A novel flexible grid/semi-flexible grid optical path network design algorithm that reserves exclusive frequency slots for high bitrate signals. ONDM Zhishu Shen, Hiroshi Hasegawa, Ken-ichi Sato
2014	—	`conf`	Design of Grouped Routing Entity (GRE)-based optical networks with 100% signal quality guarantee. ONDM Amornrat Jirattigalachote, Paolo Monti, Lena Wosinska, Yuki Taniguchi, Toshinori Ban, Hiroshi Hasegawa, Ken-ichi Sato
2014	J	`jnl`	Editorial. Opt. Switch. Netw. Jing Wu, Lena Wosinska, Carmen Mas Machuca, Anna Tzanakaki, Hiroshi Hasegawa
2014	—	`conf`	Enhancement of fiber frequency utilization by employing grouped optical path routing. OFC Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2014	—	`conf`	Fiber-nonlinearity limitation of transmission distances in ultra-dense gridless photonic networks. OFC Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2014	—	`conf`	Hardware scale and performance evaluation of compact OXC add/drop architecture. OFC Hiroto Ishida, Hiroshi Hasegawa, Ken-ichi Sato
2014	J	`jnl`	Large capacity optical networks applying multi-stage hetero-granular optical path routing. Opt. Switch. Netw. Hai-Chau Le, Hiroshi Hasegawa, Ken-ichi Sato
2014	—	`conf`	Low crosstalk wavelength tunable filter that utilizes symmetric and asymmetric Mach-Zehnder interferometers. OFC Shoichi Takashina, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
2014	—	`conf`	Low-loss and Low-power-consumption wavelength tunable filter enabling colorless/directionless/contentionless optical drop in ROADMs. ECOC Shoichi Takashina, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
2014	—	`conf`	Novel large-port-count optical-switch architecture for optical interconnection in datacenter. ECOC Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
2014	—	`conf`	Performance evaluations of large-scale oxc that achieves modular and hitless expansion. OFC Yasuhiro Tanaka, Hiroshi Hasegawa, Ken-ichi Sato
2014	—	`conf`	Using a Low-Cost Electroencephalogram (EEG) Directly as Random Number Generator. IIAI-AAI Bhanupong Petchlert, Hiroshi Hasegawa
2014	—	`conf`	Verification of high frequency spectrum utilization in grouped optical path routing networks under traffic growth scenario. ECOC Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
2013	—	`conf`	A 270 × 270 optical cross-connect switch utilizing wavelength routing with cascaded AWGs. OFC/NFOEC Tomonobu Niwa, Hiroshi Hasegawa, Ken-ichi Sato
2013	J	`jnl`	A large-scale wavelength routing optical switch for data center networks. IEEE Commun. Mag. Ken-ichi Sato, Hiroshi Hasegawa, Tomonobu Niwa, Toshio Watanabe
2013	J	`jnl`	An efficient heuristic waveband assignment algorithm for hierarchical optical path networks utilizing wavelength convertors. Opt. Switch. Netw. Zhishu Shen, Hiroshi Hasegawa, Ken-ichi Sato
2013	J	`jnl`	Coarse Granular Optical Routing Networks Utilizing Fine Granular Add/Drop. JOCN Yuki Taniguchi, Yoshiyuki Yamada, Hiroshi Hasegawa, Ken-ichi Sato
2013	—	`conf`	Compact integrated tunable filter utilizing AWG routing function and small switches. OFC/NFOEC Tomonobu Niwa, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe, Hiroshi Takahashi, S. Soma
2013	—	`conf`	Design strategies for survivable Grouped Routing Entity (GRE)-based optical networks. DRCN Hiroshi Hasegawa, Yuki Taniguchi, Ken-ichi Sato, Amornrat Jirattigalachote, Paolo Monti, Lena Wosinska
2013	—	`conf`	Dynamic grouped routing optical networks for cost effective and agile wavelength services. OFC/NFOEC Yuki Taniguchi, Hiroshi Hasegawa, Ken-ichi Sato
2013	J	`jnl`	Effectiveness of Wavelength/Waveband Conversion and Its Allowable Cost Bound for Hierarchical Optical Path Networks. JOCN Zhishu Shen, Hiroshi Hasegawa, Ken-ichi Sato
2013	J	`jnl`	Efficient Shared Protection Network Design Algorithm that Iterates Path Relocation with New Resource Utilization Metrics. IEICE Trans. Commun. Masakazu Sato, Hiroshi Hasegawa, Ken-ichi Sato
2013	—	`conf`	Impact of wavelength/waveband convertors and the cost bound in hierarchical optical path networks. OFC/NFOEC Zhishu Shen, Hiroshi Hasegawa, Ken-ichi Sato
2013	—	`conf`	OXC hardware scale reduction attained by using interconnected subsystem architecture. OFC/NFOEC Yuto Iwai, Hiroshi Hasegawa, Ken-ichi Sato
2013	J	`jnl`	PCE-based fast path control in multi-domain photonic networks. Opt. Switch. Netw. Yohei Iizawa, Soichiro Araki, Shinya Ishida, Itaru Nishioka, Kohei Shimada, Hiroshi Hasegawa, Ken-ichi Sato
2012	B	`conf`	Adaptive system of swarm intelligent with Genetic Algorithm for global optimization. SMC Hieu Pham, Hiroshi Hasegawa
2012	C	`conf`	Differential Evolution for Adaptive System of Particle Swarm Optimization with Genetic Algorithm. IJCCI Pham Ngoc Hieu, Hiroshi Hasegawa
2012	J	`jnl`	Effects of Optical Layer Protection Granularity in Survivable Hierarchical Optical Path Network. IEICE Trans. Commun. Yoshiyuki Yamada, Hiroshi Hasegawa, Ken-ichi Sato
2012	J	`jnl`	Evaluations of OXC Hardware Scale and Network Resource Requirements of Different Optical Path Add/Drop Ratio Restriction Schemes [Invited]. JOCN Fumisato Naruse, Yoshiyuki Yamada, Hiroshi Hasegawa, Ken-ichi Sato
2012	C	`conf`	Hybrid Integration of Differential Evolution with Artificial Bee Colony for Global Optimization. IJCCI Bui Ngoc Tam, Pham Ngoc Hieu, Hiroshi Hasegawa
2012	J	`jnl`	Impact of Elastic Optical Paths That Adopt Distance Adaptive Modulation to Create Efficient Networks. IEICE Trans. Commun. Tatsumi Takagi, Hiroshi Hasegawa, Ken-ichi Sato, Yoshiaki Sone, Akira Hirano, Masahiko Jinno
2012	—	`conf`	Modified Self-adaptive Strategy for Controlling Parameters in Differential Evolution. AsiaSim (2) Tam Bui, Hieu Pham, Hiroshi Hasegawa
2012	J	`jnl`	Novel wavelength tunable filter offering multi-stage selection for colorless, directionless, and contentionless ROADMs. IEICE Electron. Express Tomonobu Niwa, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe, Hiroshi Takahashi, Masayuki Okuno
2012	J	`jnl`	Optical Fast Circuit Switching Networks Employing Dynamic Waveband Tunnel. IEICE Trans. Commun. Takahiro Ogawa, Hiroshi Hasegawa, Ken-ichi Sato
2012	J	`jnl`	Optical Node Architectures That Utilize Dedicated Add/Drop Switches to Realize Colorless, Directionless and Contentionless Capability. IEICE Trans. Commun. Yoshiyuki Yamada, Hiroshi Hasegawa, Ken-ichi Sato
2012	J	`jnl`	Router Power Reduction through Dynamic Performance Control Based on Traffic Predictions. IEICE Trans. Commun. Hiroyuki Ito, Hiroshi Hasegawa, Ken-ichi Sato
2012	J	`jnl`	Virtual Fiber Networking and Impact of Optical Path Grooming on Creating Efficient Layer One Services. IEICE Trans. Commun. Fumisato Naruse, Yoshiyuki Yamada, Hiroshi Hasegawa, Ken-ichi Sato
2011	J	`jnl`	A dynamic and quasi-centralized RWA method for optical fast circuit switching networks employing route pre-prioritization. Opt. Switch. Netw. Hiroaki Ohno, Hiroshi Hasegawa, Ken-ichi Sato
2011	J	`jnl`	Compact Matrix-Switch-Based Hierarchical Optical Path Cross-Connect with Colorless Waveband Add/Drop Ratio Restriction. IEICE Trans. Commun. Ryosuke Hirako, Kiyo Ishii, Hiroshi Hasegawa, Ken-ichi Sato, Osamu Moriwaki
2011	J	`jnl`	Development of Hierarchical Optical Path Cross-Connect Systems Employing Wavelength/Waveband Selective Switches. JOCN Kiyo Ishii, Shinichi Mitsui, Hiroshi Hasegawa, Ken-ichi Sato, Shin Kamei, Masayuki Okuno, Hiroshi Takahashi
2011	—	`conf`	Efficient iterative design algorithm for enhancing resource utilization of shared protected optical path networks. DRCN Masakazu Sato, Hiroshi Hasegawa, Ken-ichi Sato
2011	—	`conf`	Hybrid Approach for Improved Particle Swarm Optimization using Adaptive Plan System with Genetic Algorithm. IJCCI (ECTA-FCTA) Pham Ngoc Hieu, Hiroshi Hasegawa
2011	J	`jnl`	Hybrid-hierarchical optical path network design algorithms utilizing ILP optimization. Opt. Switch. Netw. Hai-Chau Le, Hiroshi Hasegawa, Ken-ichi Sato
2010	B	`conf`	Creative and Inventive Design Support System: Systematic Approach and Evaluation Using Quality Engineering. DCC Hiroshi Hasegawa, Yuki Sonoda, Mika Tsukamoto, Yusuke Sato
2010	J	`jnl`	Hierarchical Optical Path Network Design Algorithm Considering Waveband Add/Drop Ratio Constraint. JOCN Hai-Chau Le, Hiroshi Hasegawa, Ken-ichi Sato
2010	J	`jnl`	Wavelength Assignment for Concatenated ROADM Ring Networks and Switch Scale Reduction in a Concatenating Node. JOCN Kiyo Ishii, Hiroshi Hasegawa, Ken-ichi Sato
2009	B	`conf`	Adaptive Plan system with Genetic Algorithm using the Variable Neighborhood range Control. IEEE Congress on Evolutionary Computation Sousuke Tooyama, Hiroshi Hasegawa
2009	—	`conf`	Facilitation of listening comprehension by visual information under noisy listening condition. Human Vision and Electronic Imaging Chiho Kashimada, Takumi Ito, Kazuki Ogita, Hiroshi Hasegawa, Kazuo Kamata, Miyoshi Ayama
2009	J	`jnl`	Optical Networking Technologies That Will Create Future Bandwidth-Abundant Networks [Invited]. JOCN Ken-ichi Sato, Hiroshi Hasegawa
2009	C	`conf`	Study on Finger Pointers Using Gray Theory. ICDS Yasumasa Numata, Ichiro Yuyama, Hiroshi Hasegawa, Yu Watanabe
2008	J	`jnl`	An Edge-Preserving Super-Precision for Simultaneous Enhancement of Spacial and Grayscale Resolutions. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Hiroshi Hasegawa, Toshinori Ohtsuka, Isao Yamada, Kohichi Sakaniwa
2008	J	`jnl`	An efficient hierarchical optical path network design algorithm based on a traffic demand expression in a cartesian product space. IEEE J. Sel. Areas Commun. Isao Yagyu, Hiroshi Hasegawa, Ken-ichi Sato
2008	J	`jnl`	Optical Cross-Connect Switch Architectures for Hierarchical Optical Path Networks. IEICE Trans. Commun. Shoji Kakehashi, Hiroshi Hasegawa, Ken-ichi Sato
2008	J	`jnl`	Quasi-Dynamic Network Design Considering Different Service Holding Times. IEEE J. Sel. Areas Commun. Koichi Kanie, Hiroshi Hasegawa, Ken-ichi Sato
2007	J	`jnl`	Formulation of Waveguide Connection for Waveband MUX/DEMUX Using Concatenated Arrayed-Waveguide Gratings. IEICE Trans. Commun. Shoji Kakehashi, Hiroshi Hasegawa, Ken-ichi Sato, Osamu Moriwaki
2007	C	`conf`	Improvement of Accuracy of 3D Structure Reconstruction from Interlaced Video Sequence. ICDS Ichiro Yuyama, Yuta Takano, Masami Sobata, Yoko Seki, Hiroshi Hasegawa, Yu Watanabe
2007	J	`jnl`	Prospects and Challenges of Multi-Layer Optical Networks. IEICE Trans. Commun. Ken-ichi Sato, Hiroshi Hasegawa
2007	C	`conf`	Suppression of Boundary Effect and Introduction of Scale Correlation for Wavelet based Traffic Prediction. MMSP Naoya Matsusue, Hiroshi Hasegawa, Ken-ichi Sato
2007	C	`conf`	Usability Evaluation of Finger Pointer for Home-Use Display. MMSP Ichiro Yuyama, Shigeki Takiura, Yasumasa Numata, Hiroshi Hasegawa, Yu Watanabe
2006	—	`conf`	A Consideration on System Requirements for Interactive Information System while Driving. ICN/ICONS/MCL Ichiro Yuyama, Masami Sobata, Hiroshi Hasegawa
2006	C	`conf`	An Edge-Preserving Super-Precision for Simultaneous Enhancement of Spacial and Grayscale Resolutions. MMSP Hiroshi Hasegawa, Toshinori Ohtsuka, Isao Yamada, Koichi Sakaniwa
2005	—	`conf`	A color super-resolution with multiple nonsmooth constraints by hybrid steepest descent method. ICIP (1) Ryota Sasahara, Hiroshi Hasegawa, Isao Yamada, Kohichi Sakaniwa
2005	J	`jnl`	An Iterative MPEG Super-Resolution with an Outer Approximation of Framewise Quantization Constraint. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Hiroshi Hasegawa, Toshiyuki Ono, Isao Yamada, Kohichi Sakaniwa
2005	—	`conf`	An adaptive super-resolution of videos with noise information on camera systems. ICASSP (2) Toshiyuki Ono, Hiroshi Hasegawa, Isao Yamada, Kohichi Sakaniwa
2004	C	`conf`	An iterative MPEG super-resolution with an outer approximation of framewise quantization constraint. MMSP Hiroshi Hasegawa, Toshiyuki Ono, Isao Yamada, Kohichi Sakaniwa
2003	J	`jnl`	A Truncated Polynomial Interpolation and Its Application to Polynomially WLS Design of IIR Filters. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Hiroshi Hasegawa, Masashi Nakagawa, Isao Yamada, Kohichi Sakaniwa
2002	J	`jnl`	A Higher Order Generalization of an Alias-Free Discrete Time-Frequency Analysis. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Hiroshi Hasegawa, Yasuhiro Miki, Isao Yamada, Kohichi Sakaniwa
2002	Misc	`conf`	A hidgher order generalization of an alias-free discrete time-frequency analysis. ICASSP Hiroshi Hasegawa, Yasuhiro Miki, Isao Yamada, Kohichi Sakaniwa
2002	—	`conf`	A truncated polynomial interpolation theorem and its application to the WLS design of IIR filters. ISCAS (5) Hiroshi Hasegawa, Masashi Nakagawa, Isao Yamada, Kohichi Sakaniwa
2000	J	`jnl`	A Simple Least-Squares Design of M-D IIR Filters with Fixed Separable Denominator Based on Multivariate Division Algorithm. Multidimens. Syst. Signal Process. Hiroshi Hasegawa, Isao Yamada, Kohichi Sakaniwa
1998	J	`jnl`	Algebraic multidimensional phase unwrapping and zero distribution of complex polynomials-characterization of multivariate stable polynomials. IEEE Trans. Signal Process. Isao Yamada, Kaoru Kurosawa, Hiroshi Hasegawa, Kohichi Sakaniwa
1995	J	`jnl`	A 2 V, 10 b, 20 Msample/s, mixed-mode subranging CMOS A/D converter. IEEE J. Solid State Circuits Michio Yotsuyanagi, Hiroshi Hasegawa, Motoi Yamaguchi, Masaki Ishida, Kazuya Sone