Hiroaki HARAI


Demonstration of SDN/OpenFlow-Based Path Control for Large-Scale Multi-Domain/Multi-Technology Optical Transport Networks
Shan GAO Xiaoyuan CAO Takehiro SATO Takaya MIYAZAWA Sota YOSHIDA Noboru YOSHIKANE Takehiro TSURITANI Hiroaki HARAI Satoru OKAMOTO Naoaki YAMANAKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/07/01
Vol. E99-B  No. 7  pp. 1492-1500
Type of Manuscript:  PAPER
Category: Network
Keyword: 
software defined networking (SDN)OpenFlowmulti-domain and multi-technology optical transport networks
 Summary | Full Text:PDF(3.6MB)

Quickly Converging Renumbering in Network with Hierarchical Link-State Routing Protocol
Kenji FUJIKAWA Hiroaki HARAI Motoyuki OHMORI Masataka OHTA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/06/01
Vol. E99-D  No. 6  pp. 1553-1562
Type of Manuscript:  PAPER
Category: Information Network
Keyword: 
HQLIPHANArenumberingconvergence timelink-state routing protocol
 Summary | Full Text:PDF(1.8MB)

Emergency Optical Network Construction and Control with Multi-Vendor Interconnection for Quick Disaster Recovery
Sugang XU Noboru YOSHIKANE Masaki SHIRAIWA Takehiro TSURITANI Hiroaki HARAI Yoshinari AWAJI Naoya WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/02/01
Vol. E99-B  No. 2  pp. 370-384
Type of Manuscript:  PAPER
Category: Fiber-Optic Transmission for Communications
Keyword: 
multi-vendorinterconnectionemergency optical networkdisaster recovery
 Summary | Full Text:PDF(3.8MB)

Experimental Demonstration of an Optical Packet and Circuit Integrated Ring Network Interoperated with WSON
Takaya MIYAZAWA Hideaki FURUKAWA Naoya WADA Hiroaki HARAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/07/01
Vol. E97-B  No. 7  pp. 1325-1333
Type of Manuscript:  Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
optical networkpacket switchingcircuit switchingWSONsignalingwavelength conversion
 Summary | Full Text:PDF(2.5MB)

Design and Implementation of Security for HIMALIS Architecture of Future Networks
Ved P. KAFLE Ruidong LI Daisuke INOUE Hiroaki HARAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2013/02/01
Vol. E96-D  No. 2  pp. 226-237
Type of Manuscript:  Special Section PAPER (Special Section on The Internet Architectures, Protocols, and Applications for Diversified Futures)
Category: 
Keyword: 
ID/locator split architecturesecuritynew generation networkfuture network
 Summary | Full Text:PDF(2.1MB)

Optical Packet & Circuit Integrated Network for Future Networks
Hiroaki HARAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/03/01
Vol. E95-B  No. 3  pp. 714-722
Type of Manuscript:  INVITED PAPER (Special Section on New/Next Generation Photonic Networking and Future Networks)
Category: 
Keyword: 
new generation networkoptical packet switchingoptical circuit switchingmoving boundary
 Summary | Full Text:PDF(711KB)

Dynamic Wavelength Allocation in Integrated Optical Path and Optical Packet Switch
Dang-Quang BUI Hiroaki HARAI Won-Joo HWANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12  pp. 3412-3420
Type of Manuscript:  PAPER
Category: Fundamental Theories for Communications
Keyword: 
queuing theoryoptical pathsoptical packetsoptical circuit switchingoptical packet switching
 Summary | Full Text:PDF(1.1MB)

COLA: COmmon Layer Architecture for Adaptive Power Control and Access Technology Assignment in New Generation Networks
John Paul TORREGOZA Pham Ngoc THAI Won Joo HWANG Yun Sop HAN Fumio TERAOKA Martin ANDRE Hiroaki HARAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/06/01
Vol. E94-B  No. 6  pp. 1526-1535
Type of Manuscript:  Special Section PAPER (Special Section on New Generation Mobile and Sensor Networking and Future Networks)
Category: 
Keyword: 
cognitive radioadaptive assignmentpower controlcross-layer
 Summary | Full Text:PDF(1.3MB)

Design Guidelines for New Generation Network Architecture
Hiroaki HARAI Kenji FUJIKAWA Ved P. KAFLE Takaya MIYAZAWA Masayuki MURATA Masaaki OHNISHI Masataka OHTA Takeshi UMEZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/03/01
Vol. E93-B  No. 3  pp. 462-465
Type of Manuscript:  Special Section LETTER (Special Section on New Generation Network towards Innovative Future Society)
Category: 
Keyword: 
new generation networkfuture networkdesign guideline
 Summary | Full Text:PDF(182KB)

On-Demand End-to-End Optical Network Construction for Grid Applications with Adaptive and Distributed Control over Multi-Domain WSONs
Sugang XU Weiping REN Hiroaki HARAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/03/01
Vol. E93-B  No. 3  pp. 536-545
Type of Manuscript:  Special Section PAPER (Special Section on New Generation Network towards Innovative Future Society)
Category: 
Keyword: 
on-demand optical grid networkdistributed controladaptive constructionend-to-end lightpathmulti-domain WSON
 Summary | Full Text:PDF(1.3MB)

Optical Access Architecture Designs Based on WDM-Direct toward New Generation Networks
Takaya MIYAZAWA Hiroaki HARAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/02/01
Vol. E93-B  No. 2  pp. 236-245
Type of Manuscript:  INVITED PAPER (Special Section on Optical Access Technologies)
Category: 
Keyword: 
optical access architecturenew generation networksWDMlightpathsingle starpassive double star
 Summary | Full Text:PDF(1.4MB)

End-to-End Lightpath Establishment Based on Rank Accounting in Multi-Domain WDM Networks
Takuji TACHIBANA Hiroaki HARAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/09/01
Vol. E89-B  No. 9  pp. 2448-2456
Type of Manuscript:  PAPER
Category: Fiber-Optic Transmission for Communications
Keyword: 
multi-domainlightpath establishmentWDM networkswavelength-state informationrank accounting
 Summary | Full Text:PDF(989.8KB)

A Distributed Clustering Method for Hierarchical Routing in Large-Scaled Wavelength Routed Networks
Yukinobu FUKUSHIMA Hiroaki HARAI Shin'ichi ARAKAWA Masayuki MURATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/10/01
Vol. E88-B  No. 10  pp. 3904-3913
Type of Manuscript:  Special Section PAPER (Special Section on Next Generation Photonic Network Technologies)
Category: 
Keyword: 
WDMlightpath networkpath-vector routinghierarchical routingdistributed clustering
 Summary | Full Text:PDF(815.3KB)

Multi-Stage Fiber Delay Line Buffer in Photonic Packet Switch for Asynchronously Arriving Variable-Length Packets
Nobuo OGASHIWA Hiroaki HARAI Naoya WADA Fumito KUBOTA Yoichi SHINODA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1  pp. 258-265
Type of Manuscript:  PAPER
Category: Internet
Keyword: 
photonic packet switchfiber delay line buffermulti-stage buffervariable-length packets
 Summary | Full Text:PDF(735.8KB)

Optical Packet Switching Network Based on Ultra-Fast Optical Code Label Processing
Naoya WADA Hiroaki HARAI Fumito KUBOTA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/07/01
Vol. E87-C  No. 7  pp. 1090-1096
Type of Manuscript:  INVITED PAPER (Special Section on Ultrafast Photonics)
Category: 
Keyword: 
networksoptical communicationsoptical label processingoptical packet switchingoptical buffering
 Summary | Full Text:PDF(3.4MB)

Design of Reconfigurable Lightpaths in IP over WDM Networks
Hiroaki HARAI Fumito KUBOTA Hidenori NAKAZATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/10/25
Vol. E83-B  No. 10  pp. 2234-2244
Type of Manuscript:  Special Section PAPER (Special Issue on Advanced Internetworking based on Photonic Network Technologies)
Category: 
Keyword: 
IP over WDM networknetwork designlightpath configurationinteger linear programmingMPLS
 Summary | Full Text:PDF(763.7KB)