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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 21  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
PN 2021-11-11
09:35
Online Online Research Trends for Fiscal Year 2020 in Technical Committee on Photonic Network -- Control, Management, and Application --
Yojiro Mori (Nagoya Univ.), Kenji Ishii (Mitsubishi Electric Corp.), Masahiro Nakagawa (NTT), Motoharu Matsuura (UEC) PN2021-26
In this paper, in terms of control, management, and application for photonic networks, we investigate researches that we... [more] PN2021-26
pp.1-6
PN 2021-11-11
10:00
Online Online Research Trends for Fiscal Year 2020 in Technical Committee on Photonic Network -- System, Architecture, and Device --
Kenji Ishii (Mitsubishi Electric Corp.), Yojiro Mori (Nagoya Univ.), Motoharu Matsuura (UEC), Masahiro Nakagawa (NTT) PN2021-27
In this paper, in terms of control, management, and application for photonic network, we investigate researches that wer... [more] PN2021-27
pp.7-12
PN 2020-11-10
09:30
Online Online Research Trends for Fiscal Year 2019 in Technical Committee on Photonic Network -- Control, Management, and Application --
Masahiro Nakagawa (NTT), Motoharu Matsuura (UEC), Takahiro Kodama (Kagawa univ.), Kenji Ishii (Mitsubishi Electric Corp.) PN2020-23
 [more] PN2020-23
pp.1-6
PN 2020-11-10
09:55
Online Online Research Trends for Fiscal Year 2019 in Technical Committee on Photonic Network -- System, Architecture, and Device --
Motoharu Matsuura (UEC), Masahiro Nakagawa (NTT), Kenji Ishii (Mitsubishi Electric Corp.), Takahiro Kodama (Kagawa univ.) PN2020-24
 [more] PN2020-24
pp.7-12
PN 2020-08-24
14:00
Online Online [Invited Talk] High-speed low-power forward error correction coding technology for communications
Yoshiaki Konishi, Hideo Yoshida, Takahiko Nakamura, Kenji Ishii, Takafumi Fujimori (Mitsubishi Electric) PN2020-18
To deal with the rapid increase in the Internet and mobile communication traffic, research and development of Beyond 400... [more] PN2020-18
pp.31-38
PN 2018-03-05
15:20
Kagoshima Minami Tanemachi Shoko Kaikan [Invited Lecture] Integration of Energy Scaling FEC into Optical Communication Systems
Soichiro Kametani, Kazuo Kubo, Kenji Ishii, Takashi Sugihara (Mitsubishi Electric) PN2017-97
A recent metro/core optical transceiver is improving its transmission distance and capacity with digital coherent techno... [more] PN2017-97
pp.39-44
PN, NS, OCS
(Joint)
2017-06-15
09:25
Akita Akita Univ. A Green Optical Network by Energy Scaling FEC
Soichiro Kametani, Kazuo Kubo, Kenji Ishii, Keisuke Dohi, Takashi Sugihara (Mitsubishi Electric Corp.) PN2017-6
Energy saving is urgent issue for sustainable deployment of advanced Information and Telecommunications Society. We prop... [more] PN2017-6
pp.1-6
VLD 2017-03-03
10:55
Okinawa Okinawa Seinen Kaikan A Study on LSI implementation of FEC for high-speed optical transmission
Susumu Hirano, Kazuo Kubo, Hideo Yoshida, Kenji Ishii, Kenya Sugihara, Takashi Sugihara, Koji Miyanohana, Hirohide Nozaki, Noriyuki Minegishi (Mitsubishi Elec.) VLD2016-126
FEC(Forward Error Correction) for high-speed optical transmission (Beyond100G) is essential to apply advanced technology... [more] VLD2016-126
pp.133-138
MI 2017-01-18
11:46
Okinawa Tenbusu Naha [Short Paper] Comparison of FDG-PET Image and MR Image in differential dementia diagnosis using machine learning
Xiaoyu Wang (Chiba Univ./Tokyo Metropolitan Geriatric Hospital), Muneyuki Sakata, Kenji Ishii (Tokyo Metropolitan Geriatric Hospital), Yuichi Kimura (Tokyo Metropolitan Geriatric Hospital/KINDAI Univ.), Keii Wagatsuma, Kenji Ishibashi, Jun Toyohara (Tokyo Metropolitan Geriatric Hospital), Noriko Yata, Yoshitsugu Manabe (Chiba Univ.) MI2016-78
 [more] MI2016-78
pp.31-32
OCS, NS, PN
(Joint)
2016-06-24
12:25
Hokkaido Hokkaido University A Study on Power-scaling of Triple-concatenated FEC for Optical Transport Network -- Toward Green Transport SDN --
Kazuo Kubo, Kenji Ishii, Souichiro Kametani, Hideo Yoshida, Takashi Sugihara (Mitsubishi Electric Corp.) OCS2016-16
100Gbps digital coherent transmission systems have been widely deployed in the commercial networks. We have been develop... [more] OCS2016-16
pp.37-42
ITE-BCT, OCS, OFT, IEE-CMN
(Joint) [detail]
2014-11-14
14:20
Hiroshima   Experimental Study on Coherent IFDMA-PON Uplink using Real-time IFDMA Transmitter with Asynchronous Light Source
Kenji Ishii (Mitsubishi Electric), Yuki Yoshida (Osaka Univ.), Kiyoshi Onohara, Masaki Noda, Masamichi Nogami (Mitsubishi Electric), Akihiro Maruta, Ken-ichi Kitayama (Osaka Univ.) OCS2014-90
Carrier frequency synchronization between ONUs is one of the main issues for applying OFDMA to PON system. In this paper... [more] OCS2014-90
pp.83-88
OPE, OCS 2014-05-16
14:00
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Report on OFC2014: Optical Access
Kenji Ishii (Mitsubishi Electric) OCS2014-7 OPE2014-7
This paper reviews the latest key technologies on optical access systems reported in OFC 2014 which was held in San Fran... [more] OCS2014-7 OPE2014-7
pp.33-36
MI 2014-01-26
13:30
Okinawa Bunka Tenbusu Kan Employment of MRI anatomical normalization in statistical comparison of brain FDG-PET -- Improvement of the whole brain extraction process and performance evaluation --
Akihiro Ejiri (Chiba Univ./TMIG), Muneyuki Sakata, Kenji Ishii (TMIG), Yuichi Kimura (Kinki Univ. /TMIG), Keiichi Oda, Jun Toyohara (TMIG), Noriko Yata (Chiba Univ.), Kiichi Ishiwata (TMIG), Yoshitsugu Manabe (Chiba Univ.) MI2013-79
 [more] MI2013-79
pp.127-132
MI 2014-01-27
13:30
Okinawa Bunka Tenbusu Kan Improvement of precision in FreeSurfer analysis for human brain MRI volumetry by optimum threshold setting
Mika Tanaka (TMIG/MICRON), Kenji Ishii, Muneyuki Sakata, Kiichi Ishiwata (TMIG) MI2013-114
FreeSurfer is noticed as a tool for detailed analysis of the brain forms images. However, analysis results are affected ... [more] MI2013-114
pp.309-313
CS, OCS
(Joint)
2014-01-23
14:35
Tokyo Hajijo-jima Ohgagou Kouminkan Prototype of Uplink Transceiver for IFDMA-PON System by FPGA Emulation
Kiyoshi Onohara, Kenji Ishii, Yuji Akiyama, Masaki Noda, Masamichi Nogami, Takashi Sugihara (Mitsubishi Electric), Yuki Yoshida, Akihiro Maruta (Osaka Univ.), Takashi Mizuochi (Mitsubishi Electric), Ken-ichi Kitayama (Osaka Univ.) OCS2013-100
We demonstrate a power-efficient coherent interleaved frequency domain multiple access passive optical network (IFDMA-PO... [more] OCS2013-100
pp.47-52
OFT, OCS
(Joint)
2013-08-23
14:25
Hokkaido   A Circuit Implementation of Power-saved ONU Modulation Processing for IFDMA-PON System using a Polar Coordinate Transformation
Kenji Ishii, Kiyoshi Onohara, Yuji Akiyama, Masaki Noda, Kazuumi Koguchi, Masamichi Nogami (Mitsubishi Electric), Yuki Yoshida, Akihiro Maruta (Osaka Univ.), Takashi Mizuochi (Mitsubishi Electric), Ken-ichi Kitayama (Osaka Univ.) OCS2013-44
In the PON system using the OFDMA technique, there is a problem that the power consumption of the IFFT circuit for gener... [more] OCS2013-44
pp.43-48
MI 2013-01-24
11:05
Okinawa Bunka Tenbusu Kan Performance improvements using MRI anatomical normalization in statistical comparison of brain FDG-PET for dementia diagnosis
Ryosuke Mizuno (Chiba Univ./TMIG), Muneyuki Sakata, Kenji Ishii, Keiichi Oda, Jun Toyohara, Kiichi Ishiwata (TMIG), Yuichi Kimura (NIRS/Chiba Univ.) MI2012-66
Statistical comparisons to detect significant decreases of glucose metabolism in brain images of positron emission tomog... [more] MI2012-66
pp.25-29
NS 2012-10-11
15:25
Kyoto Kyoto Univ. Data Sharing among Hadoop Clusters by Hadoop on Demand
Manhee Jo, Satoshi Tanaka, Kenji Ishii (NTT DoCoMo) NS2012-93
One of the most tough problems in maintaining large scale Hadoop testing clusters is data copying overhead among the clu... [more] NS2012-93
pp.73-78
NS 2012-05-17
16:40
Tokyo National Institute of Informatics A Study of construction and maintenance of a large Hadoop cluster
Ken Koumoto, So Ishida, Jo Manhee, Ryouhei Suzuki, Kenji Ishii (NTT DOCOMO), Masaru Dobashi (NTT DATA), Ken Endou (NTT SOFT), Satoshi Tanaka (NTT DOCOMO) NS2012-23
 [more] NS2012-23
pp.35-40
ITE-BCT, OCS, OFT, IEE-CMN
(Joint) [detail]
2010-11-19
09:00
Osaka SEI Ikoma Seminar House 10.3G/1.25G dual-rate OLT optical transceiver for 10G-EPON systems
Satoshi Yoshima, Kenji Ishii, Satoshi Shirai, Masaki Noda, Naoki Suzuki, Masamichi Nogami, Junichi Nakagawa (Mitsubishi Electric Co.) OCS2010-93
 [more] OCS2010-93
pp.23-28
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