IEICE Trans

Hiroshi HASEGAWA

Fragmentation-Minimized Periodic Network-Bandwidth Expansion Employing Aligned Channel Slot Allocation in Flexible Grid Optical Networks Hiroshi HASEGAWA Takuma YASUDA Yojiro MORI Ken-ichi SATO
Publication: Publication Date: 2021/12/01 Vol. E104-B No. 12 pp. 1514-1523 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: semi-flexible grid, periodic network upgrade, fragment mitigation,
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Transmission-Quality-Aware Online Network Design and Provisioning Enabled by Optical Performance Monitoring Keisuke KAYANO Yojiro MORI Hiroshi HASEGAWA Ken-ichi SATO Shoichiro ODA Setsuo YOSHIDA Takeshi HOSHIDA
Publication: Publication Date: 2020/06/01 Vol. E103-B No. 6 pp. 670-678 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: network design, elastic optical network, performance monitoring, higher-order modulation,
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Assessment of Optical Node Architectures for Building Next Generation Large Bandwidth Networks Mungun-Erdene GANBOLD Takuma YASUDA Yojiro MORI Hiroshi HASEGAWA Fumikazu INUZUKA Akira HIRANO Ken-ichi SATO
Publication: Publication Date: 2020/06/01 Vol. E103-B No. 6 pp. 679-689 Type of Manuscript: PAPER Category: Network Keyword: ROADM, OXC, fiber cross-connect, routing and wavelength assignment,
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Architecture and Design of Coarse/Fine Hybrid Granular Routing Optical Networks Yusaku ITO Yojiro MORI Hiroshi HASEGAWA Ken-ichi SATO
Publication: Publication Date: 2020/02/01 Vol. E103-B No. 2 pp. 118-129 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: coarse and fine granular routing, virtual direct links, routing and wavelength assignment, optical path networks,
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Improved Optical Amplification Efficiency by Using Turbo Cladding Pumping Scheme for Multicore Fiber Optical Networks Hitoshi TAKESHITA Keiichi MATSUMOTO Hiroshi HASEGAWA Ken-ichi SATO Emmanuel Le Taillandier de GABORY
Publication: Publication Date: 2019/08/01 Vol. E102-B No. 8 pp. 1579-1589 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: multicore-EDFA, cladding pumping, recycle, power consumption,
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Assessment of Node- and Link- Level Blocking and Creating Cost-Effective Networks in the Era of Large Bandwidth Services Shuhei YAMAKAMI Masaki NIWA Yojiro MORI Hiroshi HASEGAWA Ken-ichi SATO Fumikazu INUZUKA Akira HIRANO
Publication: Publication Date: 2019/03/01 Vol. E102-B No. 3 pp. 510-521 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: networks, photonic network, wavelength routing, optical cross-connect, reconfigurable optical add/drop multiplexer,
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Fast Optical Circuit Switch for Intra-Datacenter Networking Koh UEDA Yojiro MORI Hiroshi HASEGAWA Hiroyuki MATSUURA Kiyo ISHII Haruhiko KUWATSUKA Shu NAMIKI Toshio WATANABE Ken-ichi SATO
Publication: Publication Date: 2017/10/01 Vol. E100-B No. 10 pp. 1740-1746 Type of Manuscript: INVITED PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network) Category: Keyword: switching, circuit, array waveguide devices,
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Dynamic Path Provisioning and Disruption-Free Reoptimization Algorithms for Bandwidth on-Demand Services Considering Fairness Masahiro NAKAGAWA Hiroshi HASEGAWA Ken-ichi SATO
Publication: Publication Date: 2017/04/01 Vol. E100-B No. 4 pp. 536-547 Type of Manuscript: PAPER Category: Network Keyword: dynamic network control, fairness between paths, hitless rerouting, make before break routing,
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Survivable Grouped Routing Optical Networks with Dedicated Path Protection Hiroshi HASEGAWA Yojiro MORI Ken-ichi SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2016/07/01 Vol. E99-B No. 7 pp. 1435-1444 Type of Manuscript: PAPER Category: Network Keyword: grouped routing optical networks, coarse granular routing, resiliency, dedicated path protection, impairment-aware,
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Differential Reliability Path Accommodation Design and Reconfiguration in Virtualized Multi-Layer Transport Network Akihiro KADOHATA Takafumi TANAKA Atsushi WATANABE Akira HIRANO Hiroshi HASEGAWA Ken-ichi SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2015/11/01 Vol. E98-B No. 11 pp. 2151-2159 Type of Manuscript: Special Section PAPER (Special Section on Network Systems for Virtualized Environment) Category: Keyword: multi-layer transport network, network virtualization, robustness and reconfiguration,
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Pre-Adjustment Rerouting for Wavelength Defragmentation in Optical Transparent WDM Networks Akihiro KADOHATA Atsushi WATANABE Akira HIRANO Hiroshi HASEGAWA Ken-ichi SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2015/10/01 Vol. E98-B No. 10 pp. 2014-2021 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: optical transparent wdm networks, reconfiguration, defragmentation,
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Efficient Shared Protection Network Design Algorithm that Iterates Path Relocation with New Resource Utilization Metrics Masakazu SATO Hiroshi HASEGAWA Ken-ichi SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/04/01 Vol. E96-B No. 4 pp. 956-966 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: optical path network, routing and wavelength assignment, shared protection, iterative re-optimization,
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Impact of Elastic Optical Paths That Adopt Distance Adaptive Modulation to Create Efficient Networks Tatsumi TAKAGI Hiroshi HASEGAWA Ken-ichi SATO Yoshiaki SONE Akira HIRANO Masahiko JINNO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/12/01 Vol. E95-B No. 12 pp. 3793-3801 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: elastic optical path network, distance adaptive modulation, routing and spectrum assignment, network design,
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Router Power Reduction through Dynamic Performance Control Based on Traffic Predictions Hiroyuki ITO Hiroshi HASEGAWA Ken-ichi SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/10/01 Vol. E95-B No. 10 pp. 3130-3138 Type of Manuscript: PAPER Category: Energy in Electronics Communications Keyword: router, performance control, energy efficiency,
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Optical Fast Circuit Switching Networks Employing Dynamic Waveband Tunnel Takahiro OGAWA Hiroshi HASEGAWA Ken-ichi SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/10/01 Vol. E95-B No. 10 pp. 3139-3148 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: hierarchical optical path network, optical circuit switching, routing and wavelength assignment, waveband, dynamic control,
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Effects of Optical Layer Protection Granularity in Survivable Hierarchical Optical Path Network Yoshiyuki YAMADA Hiroshi HASEGAWA Ken-ichi SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/09/01 Vol. E95-B No. 9 pp. 2959-2963 Type of Manuscript: LETTER Category: Network Keyword: hierarchical optical path network, waveband, survivability, protection,
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Optical Node Architectures That Utilize Dedicated Add/Drop Switches to Realize Colorless, Directionless and Contentionless Capability Yoshiyuki YAMADA Hiroshi HASEGAWA Ken-ichi SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/04/01 Vol. E95-B No. 4 pp. 1307-1316 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: optical cross-connect, colorless/directionless/contentionless, waveband, multi-layer optical paths,
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Virtual Fiber Networking and Impact of Optical Path Grooming on Creating Efficient Layer One Services Fumisato NARUSE Yoshiyuki YAMADA Hiroshi HASEGAWA Ken-ichi SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/03/01 Vol. E95-B No. 3 pp. 723-729 Type of Manuscript: Special Section PAPER (Special Section on New/Next Generation Photonic Networking and Future Networks) Category: Keyword: waveband, optical path grooming, virtual fiber networking, virtual private network, layer one service,
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Compact Matrix-Switch-Based Hierarchical Optical Path Cross-Connect with Colorless Waveband Add/Drop Ratio Restriction Ryosuke HIRAKO Kiyo ISHII Hiroshi HASEGAWA Ken-ichi SATO Osamu MORIWAKI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2011/04/01 Vol. E94-B No. 4 pp. 918-927 Type of Manuscript: Special Section PAPER (Special Section on Photonic Network Technologies in Terabit Network Era) Category: Keyword: hierarchical optical cross-connect, waveband, add/drop ratio, MUX/DMUX, AWG,
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Optical Cross-Connect Switch Architectures for Hierarchical Optical Path Networks Shoji KAKEHASHI Hiroshi HASEGAWA Ken-ichi SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/10/01 Vol. E91-B No. 10 pp. 3174-3184 Type of Manuscript: PAPER Category: Switching for Communications Keyword: waveband, waveband cross-connect, optical cross-connect,
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An Edge-Preserving Super-Precision for Simultaneous Enhancement of Spacial and Grayscale Resolutions Hiroshi HASEGAWA Toshinori OHTSUKA Isao YAMADA Kohichi SAKANIWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/02/01 Vol. E91-A No. 2 pp. 673-681 Type of Manuscript: PAPER Category: Image Keyword: super-resolution, Huber function, total variation, set-theoretic approach, outer approximation, hybrid steepest descent method,
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Formulation of Waveguide Connection for Waveband MUX/DEMUX Using Concatenated Arrayed-Waveguide Gratings Shoji KAKEHASHI Hiroshi HASEGAWA Ken-ichi SATO Osamu MORIWAKI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/10/01 Vol. E90-B No. 10 pp. 2950-2952 Type of Manuscript: LETTER Category: Fiber-Optic Transmission for Communications Keyword: waveband, waveband filter, AWG, MUX/DEMUX,
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Prospects and Challenges of Multi-Layer Optical Networks Ken-ichi SATO Hiroshi HASEGAWA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/08/01 Vol. E90-B No. 8 pp. 1890-1902 Type of Manuscript: SURVEY PAPER Category: Traffic Engineering and Multi-Layer Networking Keyword: optical path, waveband, photonic network, multi-layer optical paths, optical cross-connect,
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An Iterative MPEG Super-Resolution with an Outer Approximation of Framewise Quantization Constraint Hiroshi HASEGAWA Toshiyuki ONO Isao YAMADA Kohichi SAKANIWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/09/01 Vol. E88-A No. 9 pp. 2427-2435 Type of Manuscript: PAPER Category: Image Keyword: super-resolution, MPEG video, set-theoretic approach, outer approximation, adaptive projected subgradient method,
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Evaluation of the Corresponding Degree between a Visual Image and Its Associated Sound under Dynamic Conditions on a Wide Screen Hiroshi HASEGAWA Miyoshi AYAMA Shuichi MATSUMOTO Atsushi KOIKE Koichi TAKAGI Masao KASUGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/06/01 Vol. E87-A No. 6 pp. 1409-1416 Type of Manuscript: Special Section PAPER (Special Section on Papers Selected from 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003)) Category: Keyword: auditory-visual interaction, ventriloquist effect, wide screen, peripheral visual field,
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Discrete Time-Frequency Projection Filtering Based on an Alias-Free Discrete Time-Frequency Analysis Hiroshi HASEGAWA Isao YAMADA Kohichi SAKANIWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/06/01 Vol. E87-A No. 6 pp. 1537-1545 Type of Manuscript: PAPER Category: Digital Signal Processing Keyword: time-frequency analysis, Cohen's class, discrete time and frequency, linear time-varying filtering,
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A Truncated Polynomial Interpolation and Its Application to Polynomially WLS Design of IIR Filters Hiroshi HASEGAWA Masashi NAKAGAWA Isao YAMADA Kohichi SAKANIWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2003/07/01 Vol. E86-A No. 7 pp. 1742-1748 Type of Manuscript: PAPER Category: Digital Signal Processing Keyword: Walsh's theorem, weighted least-squares approximation, rational approximation, design of IIR filters,
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A Higher Order Generalization of an Alias-Free Discrete Time-Frequency Analysis Hiroshi HASEGAWA Yasuhiro MIKI Isao YAMADA Kohichi SAKANIWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2002/08/01 Vol. E85-A No. 8 pp. 1774-1780 Type of Manuscript: Special Section PAPER (Special Section on Digital Signal Processing) Category: Theory of Signals Keyword: time-frequency analysis, higher order moment spectra, discrete-time & frequency, kernel design, hybrid steepest descent method,
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A Design of Near Perfect Reconstruction Linear-Phase QMF Banks Based on Hybrid Steepest Descent Method Hiroshi HASEGAWA Isao YAMADA Kohichi SAKANIWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2000/08/25 Vol. E83-A No. 8 pp. 1523-1530 Type of Manuscript: Special Section PAPER (Special Section on Digital Signal Processing) Category: Filter Banks Keyword: two-channel linear phase FIR QMF bank, near perfect reconstruction, convex projection technique, hybrid steepest descent method, magnitude product space,
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Simply Realization of Sound Localization Using HRTF Approximated by IIR Filter Hiroshi HASEGAWA Masao KASUGA Shuichi MATSUMOTO Atsushi KOIKE
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2000/06/25 Vol. E83-A No. 6 pp. 973-978 Type of Manuscript: Special Section PAPER (Special Section of Papers Selected from 1999 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC'99)) Category: Keyword: IIR filter, HRTF (head-related transfer function), dummy-head, sound localization, binaural reproduction,
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A 1.5 V, 8 mW, 8 b, 15 Msps BiCMOS A/D Converter Michio YOTSUYANAGI Hiroshi HASEGAWA Masaharu SATO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1999/02/25 Vol. E82-A No. 2 pp. 286-292 Type of Manuscript: Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics) Category: Keyword: A/D converter, comparator, BiCMOS, low voltage,
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A Note on Constrained Least Squares Design of M-D FIR Filter Based on Convex Projection Techniques Isao YAMADA Hiroshi HASEGAWA Kohichi SAKANIWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1998/08/25 Vol. E81-A No. 8 pp. 1586-1591 Type of Manuscript: Special Section PAPER (Special Section on Digital Signal Processing) Category: Keyword: multidimensional FIR filter, constrained least squares design, convex projection, Dykstra's algorithm,
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Communication System for People with Physical Disability Using Voice Recognizer Seigou YASUDA Akira OKAMOTO Hiroshi HASEGAWA Yoshito MEKADA Masao KASUGA Kazuo KAMATA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1998/06/25 Vol. E81-A No. 6 pp. 1097-1104 Type of Manuscript: Special Section PAPER (Special Section of Papers Selected from ITC-CSCC'97) Category: Human Communications and Ergonomics Keyword: disabled people, multi-modal interface, voice recognition, electronic mail,
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