Akira HIRANO


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: 
networksphotonic networkwavelength routingoptical cross-connectreconfigurable optical add/drop multiplexer
 Summary | Full Text:PDF(3.9MB)

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 networknetwork virtualizationrobustness and reconfiguration
 Summary | Full Text:PDF(2.8MB)

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 networksreconfigurationdefragmentation
 Summary | Full Text:PDF(1.7MB)

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 networkdistance adaptive modulationrouting and spectrum assignmentnetwork design
 Summary | Full Text:PDF(2.1MB)

Elastic Optical Path Network Architecture: Framework for Spectrally-Efficient and Scalable Future Optical Networks
Masahiko JINNO Hidehiko TAKARA Yoshiaki SONE Kazushige YONENAGA Akira HIRANO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/03/01
Vol. E95-B  No. 3  pp. 706-713
Type of Manuscript:  INVITED PAPER (Special Section on New/Next Generation Photonic Networking and Future Networks)
Category: 
Keyword: 
optical networkWDMIP networkelastic optical pathspectrum efficiency
 Summary | Full Text:PDF(941.7KB)

Distance-Adaptive Path Allocation in Elastic Optical Path Networks
Bartlomiej KOZICKI Hidehiko TAKARA Takafumi TANAKA Yoshiaki SONE Akira HIRANO Kazushige YONENAGA Masahiko JINNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/07/01
Vol. E94-B  No. 7  pp. 1823-1830
Type of Manuscript:  Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
all-optical networksfiber optics links and subsystemsadaptive modulationquadrature-amplitude modulationquadrature phase-shift keying
 Summary | Full Text:PDF(2.6MB)

Grid Network Service-Web Services Interface Version 2 Achieving Scalable Reservation of Network Resources Across Multiple Network Domains via Management Plane
Yukio TSUKISHIMA Michiaki HAYASHI Tomohiro KUDOH Akira HIRANO Takahiro MIYAMOTO Atsuko TAKEFUSA Atsushi TANIGUCHI Shuichi OKAMOTO Hidemoto NAKADA Yasunori SAMESHIMA Hideaki TANAKA Fumihiro OKAZAKI Masahiko JINNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/10/01
Vol. E93-B  No. 10  pp. 2696-2705
Type of Manuscript:  PAPER
Category: Network
Keyword: 
gridmultiple international domainsresource reservationWeb services interface
 Summary | Full Text:PDF(2.3MB)

1 Tbit/s (25 43 Gbit/s) Field Trial Using 43-Gbit/s/ch OTN Interface Prototype
Shoichiro KUWAHARA Kazushige YONENAGA Yutaka MIYAMOTO Yoshiaki KISAKA Kenji SATO Akira HIRANO Takashi ONO Akihiko MATSUURA Masahito TOMIZAWA Tomoyoshi KATAOKA Yasuhiko TADA Hiromu TOBA Kazuo HAGIMOTO Nobuhiro HIRAYAMA Hirotaka ASAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/02/01
Vol. E85-B  No. 2  pp. 470-477
Type of Manuscript:  Special Section PAPER (Special Issue on 40 Gbit/s Optical Transmission Technologies)
Category: 
Keyword: 
OTNmultiple clientsFECInP HEMTUTC-PD
 Summary | Full Text:PDF(1MB)

Dispersion Tolerant 80-Gbit/s Carrier-Suppressed Return-to-Zero (CS-RZ) Format Generated by Using Phase- and Duty-Controlled Optical Time Division Multiplexing (OTDM) Technique
Akira HIRANO Masaki ASOBE Kenji SATO Yutaka MIYAMOTO Kazushige YONENAGA Hiroshi MIYAZAWA Makoto ABE Hidehiko TAKARA Ippei SHAKE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/02/01
Vol. E85-B  No. 2  pp. 431-437
Type of Manuscript:  Special Section PAPER (Special Issue on 40 Gbit/s Optical Transmission Technologies)
Category: 
Keyword: 
CS-RZOTDMdispersion tolerancePLC
 Summary | Full Text:PDF(558.4KB)

N 40-Gbit/s DWDM Transport System Using Novel Return-to-Zero Formats with Modulation Bandwidth Reduction
Yutaka MIYAMOTO Kazushige YONENAGA Akira HIRANO Masahito TOMIZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/02/01
Vol. E85-B  No. 2  pp. 374-385
Type of Manuscript:  INVITED PAPER (Special Issue on 40 Gbit/s Optical Transmission Technologies)
Category: 
Keyword: 
modulation format40 Gbit/sduobinaryCS-RZDCS-RZ
 Summary | Full Text:PDF(1.1MB)

Very-High-Speed and Low Driving-Voltage Modulator Modules for a Short Optical Pulse Generation
Koichi WAKITA Kaoru YOSHINO Akira HIRANO Susumu KONDO Yoshio NOGUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/02/25
Vol. E81-C  No. 2  pp. 175-179
Type of Manuscript:  Special Section PAPER (Special Issue on Ultrashort Optical Pulse Technologies and their Applications)
Category: 
Keyword: 
optical pulse generationmodulator modulemultiple quantum wellhigh-speed40 GHz
 Summary | Full Text:PDF(504.9KB)