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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| CQ, CS (Joint) |
2015-04-21 15:10 |
Fukuoka | Fukuoka Institute of Technology | [Special Invited Talk]
Optical transmission systems and multiplexing technologies that applied to it Yoshihiro Ashi (Hitachi)  CS2015-5 CQ2015-7 |
“Multiplexing” is a key technology in the optical transmission systems. A wide variety of methods has been developed alo... [more] | CS2015-5 CQ2015-7 pp.23-28(CS), pp.33-38(CQ) |
| NS, IN (Joint) |
2014-03-07 10:40 |
Miyazaki | Miyazaki Seagia | Gradual Migration based on Network Virtualization Takeshi Shibata, Makoto Kitani, Hayato Hoshihara, Daisuke Mashimo, Toshiaki Suzuki, Masahiro Kimura, Kiyotaka Takahashi, Yutaka Okui, Yoshihiro Ashi, Akihiko Takase (Hitachi) NS2013-248 |
The conventional scheme to migrate a legacy network into a new network is mainly based on an overlay model that minimize... [more] | NS2013-248 pp.415-418 |
| NS, CS, IN (Joint) |
2013-09-13 10:45 |
Miyagi | Tohoku Univ. Research Institute of Electrical Communication 2gokan | Study of network global optimization methods Shinya Fujioka, Katsuyoshi Suzuki, Kenji Fujihira, Tetsuya Uda, Yoshihiro Ashi (HITACHI) CS2013-38 |
Due to recent service diversification and traffic increase, network optimization is required for effective utilization o... [more] | CS2013-38 pp.49-54 |
| PN | 2011-11-07 16:30 |
Tokyo | Tokyo Inst. of Tech. (Seiichi Teshima Memorial Meeting Room) | [Invited Talk]
MPLS-TP Technology Achieving Critical Infrastructure Network in Cloud Computing Environments
-- Empirical considerations for the standardization through interoperability tests -- Kiyotaka Takahashi, Daisuke Mashimo, Kenji Fujihira, Masayuki Takase, Kenichi Sakamoto, Yoshihiro Ashi (Hitachi) PN2011-28 |
[more] | PN2011-28 pp.29-32 |
| CS, NS, IN (Joint) |
2011-09-01 16:00 |
Miyagi | Tohoku University | [Special Invited Talk]
Service-Transport separated network architecture using MPLS-TP technologies
-- Evolution of the network architecture toward the cloud era -- Kenichi Sakamoto, Kiyotaka Takahashi, Takeshi Shibata, Masayuki Takase, Yoshihiro Ashi, Akihiko Takase (Hitachi) NS2011-70 IN2011-66 CS2011-31 |
We propose the next generation network architecture, which is service-transport separated architecture using packet tech... [more] | NS2011-70 IN2011-66 CS2011-31 pp.55-59(NS), pp.15-19(IN), pp.15-19(CS) |
| NS | 2010-04-16 10:50 |
Kagoshima | Kagoshima Univ. | Throughput and Delay Test in Packet Transport Network Taisuke Ueta, Hideki Endo, Masayuki Takase, Takayuki Kanno, Yoshihiro Ashi (Hitachi) NS2010-13 |
We propose a method of throughput and delay test in order to enable carriers to evaluate throughput and delay between an... [more] | NS2010-13 pp.65-70 |
| CQ, CS (Joint) |
2009-04-16 11:40 |
Okinawa | Okinawaken Seinen Kaikan | High-precision Time Distribution in Optical Access Networks Masahiko Mizutani, Yoshihiro Ashi (Hitachi Comm Tech, Ltd.) CS2009-3 |
[more] | CS2009-3 pp.13-18 |
| CS | 2009-01-23 09:35 |
Okinawa | Iriomote Island, Okinawa | An Implementation of redundant Passive Optical Networks in combination with packet-based backbone network Masahiko Mizutani, Yusuke Yajima, Masatoshi Takihiro, Yoshihiro Ashi (Hitachi Communication Tech,Ltd.) CS2008-72 |
[more] | CS2008-72 pp.87-92 |
| NS | 2008-05-16 12:20 |
Hokkaido | Future University-Hakodate | Study of Packet Network Design to Guarantee Bandwidth Hideki Endo, Masayuki Takase, Kenichi Sakamoto (Hitachi, Ltd.), Nobuyuki Yamamoto, Akihiko Tanaka, Takayuki Kanno, Yoshihiro Ashi (Hitachi Communication Technologies, Ltd.) NS2008-16 |
Leased line services, which have been composed of ATM networks, are so highly reliable that the services can guarantee a... [more] | NS2008-16 pp.91-96 |
| OCS, PN, CS (Joint) |
2007-06-15 14:30 |
Hokkaido | Chitose Inst. of Science and Technology | IP broadcasting system over GPON Hiroki Ikeda, Jun Sugawa (Hitachi), Yoshihiro Ashi (Hitachi Communication Technologies), Kenichi Sakamoto (Hitachi) CS2007-12 |
Service providers are currently seeking to offer high - quality IP broadcasting service on single broadband network infr... [more] | CS2007-12 pp.5-10 |
| CS | 2007-01-12 11:00 |
Okinawa | Yonaguni (Okinawa) | Reliability Improvement in T-MPLS Network Masayuki Takase, Hideki Endo (Hitachi, Ltd.), Takayuki Kanno, Nobuyuki Yamamoto, Yoshihiro Ashi (Hitachi Communication Technologies, Ltd.) CS2006-91 |
We propose the highly reliable T-MPLS system in order to realize the end-to-end protection including an access line, whi... [more] | CS2006-91 pp.121-126 |
| CS, OCS, PN (Joint) |
2006-05-25 11:25 |
Shizuoka | Shizuoka Univ. | A Study of Protection Method in Ring Network Nobuyuki Yamamoto (Hitachi Communication Technologies,Ltd), Masayuki Takase (Hitachi,Ltd), Takayuki Kanno (Hitachi Communication Technologies,Ltd), Hideki Endo (Hitachi,Ltd), Yoshihiro Ashi (Hitachi Communication Technologies,Ltd) CS2006-15 |
Recently, broadband access network is widely used, and the broadcasting service such as TV program distribution begins t... [more] | CS2006-15 pp.7-12 |
| CS, CQ (Joint) |
2006-04-18 10:15 |
Akita | Akita Univ. | The bandwidth management on the G-PON system and the multiplexer Hideki Endo, Masahiko Mizutani, Masayuki Takase, Kenichi Sakamoto (Hitachi, Ltd.), Yoshihiro Ashi (Hitachi Communication Technologies, Ltd.) CS2006-13 |
[more] | CS2006-13 pp.63-68 |
| CS | 2006-01-16 13:30 |
Oita | Yufugo-kan (Oita) | Study of forwarding contol mechanism of OAM frames for the Ether OAM Masahiko Mizutani (Hitachi), Atsushi Iwamura (Hitachi COM), Kenichi Sakamoto (Hitachi), Yoshihiro Ashi (Hitachi COM) |
The Ethernet network is widely spread and adopted to the access portion or metro area for the reason of its cost advanta... [more] | CS2005-72 pp.1-5 |
| CS | 2006-01-16 13:55 |
Oita | Yufugo-kan (Oita) | A Study of Layer 2 Access Security Function for Optical Access System Munetoshi Tsuge (Hitachi), Ryou Nakamura (Hitachi Comm. Tech.), Kenichi Sakamoto (Hitachi), Toru Kazawa, Yoshihiro Ashi (Hitachi Comm. Tech.) |
We studied functions for an optical access system combined with a layer 2 switch on a layer 2 access network, where IP a... [more] | CS2005-73 pp.7-12 |
| RCS, CS (Joint) |
2005-08-26 14:20 |
Tokyo | Tokyo Inst. Tech. | A Study for Mutiplexing Technique of Mutiple TDM Frames for G-PON Kenichi Sakamoto, Masayuki Takase, Masahiko Mizutani (Hitachi), Toru Kazawa, Yoshihiro Ashi (Hitachi Comm. Tech.) |
Economical PON system, Giga-bit Ethernet PON (GE-PON) standardized by IEEE, has the capability of wide-band communicatio... [more] | CS2005-15 pp.21-26 |
| CS | 2004-10-28 10:45 |
Hokkaido | Lake Akan, Hokkaido | Introduction of detail mechanism of Ether OAM(Y.17ethoam) Atsushi Iwamura, Yoshihiro Ashi (Hitachi COM) |
The Ethernet network is widely spread and adopted to the access portion or metro area for the reason of its cost advanta... [more] | CS2004-85 pp.35-40 |
| NS, CS, IN | 2004-09-03 10:30 |
Miyagi | Tohoku University | A Consideration of Protection Function for CES on TDM over Ether Atsushi Iwamura, Akihiko Tanaka, Toshihiko Fujita, Yoshihiro Ashi (HITACHI COM) |
The Ethernet network is widely spread and adopted to the access portion or metro area for the reason of its economical a... [more] | NS2004-104 IN2004-63 CS2004-59 pp.19-24 |
| CS | 2004-07-09 14:05 |
Niigata | Nagaoka University of Technology | A Development of Circuit Emulation Function on TDM over Ethernet Atsushi Iwamura, Akihiko Tanaka, Toshihiko Fujita, Yoshihiro Ashi (Hitachi COM) |
The Ethernet network is widely spread and adopted to the access portion or metro area for the reason of its economical a... [more] | CS2004-35 pp.39-44 |
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