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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 14 of 14  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS, SR, SRW
(Joint)
2023-03-03
16:10
Tokyo Tokyo Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
[Invited Lecture] Spectrum Sharing 5G System Using Heterogeneous Wireless Communication System
Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.), Masayuki Ishizaki, Kiyoshi Yamamoto, Masahiro Asano (Hitachi Kokusai Electric Inc.) SRW2022-67
 [more] SRW2022-67
pp.106-111
SRW 2020-06-29
11:45
Online Online A Study on High-speed Reception Gain Control Method for Immediate Synchronization Signal Analysis of VHF-band Broadband Mobile Communication System
Masayuki Ishizaki, Kiyoshi Yamamoto, Tatsuya Abe, Masahiro Asano (Hitachi Kokusai Electric Inc.), Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) SRW2020-6
In this report, we propose a high-speed reception gain control method for a real-time delay profile analysis using a syn... [more] SRW2020-6
p.15
RCS, AP
(Joint)
2018-11-20
10:45
Okinawa Okinawa Industry Support Center Field Experiment in the NLoS(Non-Line-of-Site) Due to the Forest using VHF Band Broadband Mobile Communication System
Kei Yanagisawa, Masayuki Ishizaki, Tatsuya Abe, Kiyoshi Yamamoto, Katsunori Ikeda, Yusuke Takahashi, Junya Dosaka, Masahiro Asano, Kazue Kato (Kokusai), Hiroshi Harada, Takeshi Matsumura, Keiichi Mizutani (KU) RCS2018-180
 [more] RCS2018-180
pp.13-18
RCS, SR, SRW
(Joint)
2018-03-02
16:55
Kanagawa YRP Development of the small-sized radio equipment for multihop relay VHF band broadband mobile communication systems
Kei Yanagisawa, Kiyoshi Yamamoto, Tatsuya Abe, Masayuki Ishizaki, Shota Tobinaga, Nobuto Toguchi, Junya Dosaka, Masahiro Asano, Kazue Kato (Kokusai) RCS2017-404
The radio equipment for conventional VHF broadband mobile communication systems needed a plural radio equipment per 1 ba... [more] RCS2017-404
pp.475-480
RCS, SR, SRW
(Joint)
2018-03-02
17:35
Kanagawa YRP Multihop relay field experiment using the VHF band broadband mobile communication system
Masayuki Ishizaki, Kei Yanagisawa, Tatsuya Abe, Kiyoshi Yamamoto, Katsunori Ikeda, Yusuke Takahashi, Ryutaro Togashi, Junya Dosaka, Takamitsu Higano, Masahiro Asano, Kazue Kato (Kokusai), Hiroshi Harada, Takeshi Matsumura, Keiichi Mizutani, Takuya Habara (Kyoto univ.) RCS2017-406
 [more] RCS2017-406
pp.487-492
MWP 2017-05-11
13:45
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] VHF-band Broadband Fixed Wireless systems to Resolve Digital Divides
Masahiro Asano, Jyunya Dosaka, Kenichi Kashima, Nobuhiko Shibagaki, Kazue Kato (Hitachi Kokusai) MWP2017-2
 [more] MWP2017-2
pp.7-11
RCS, RCC, ASN, NS, SR
(Joint)
2016-07-20
15:25
Aichi   Studies on Intersystem Cooperation for Smart Radio
Keigo Hasegawa, Masahiro Asano, Manabu Nakamura (Hitachi Kokusai Electric) SR2016-32
Smart radio is a technology similar to cognitive radio which can efficiently utilize limited radio resource and satisfy ... [more] SR2016-32
pp.23-27
RCS 2015-06-24
13:20
Hokkaido Hokkaido Univ. Multihop relay field experiment using the VHF band broadband mobile communication system in rural area
Kei Yanagisawa, Tatsuya Abe, Yoshihiro Kawashima, Kiyoshi Yamamoto, Masayuki Takekawa, Masayuki Ishizaki, Tomohiro Nozaki, Junya Dosaka, Masahiro Asano, Kazue Kato (Hitachi Kokusai), Hiroshi Harada, Keiichi Mizutani (Kyoto Univ.) RCS2015-48
This paper describes results of relay connection test using a single frequency channel relay system in NLoS (Non-Line-of... [more] RCS2015-48
pp.13-18
AP 2015-02-20
10:25
Hyogo Chusho-kigyou center at Amagasaki-City [Invited Lecture] Field experiments of broadband communication using VHF band TV white space in Indonesia
Keigo Hasegawa, Tatsuya Abe, Kanta Sakamaoto, Yoshihiro Kawashima, Keat-Beng Toh, Kei Yanagisawa, Masayuki Takekawa, Junya Dosaka, Masahiro Asano (Hitachi Kokusai Electric) AP2014-200
This paper describes field experiments of broadband communication using VHF (Very High Frequency) band TV (Television) w... [more] AP2014-200
pp.75-80
RCS, SR, SRW
(Joint)
2014-03-04
09:40
Tokyo Waseda Univ. Field Experiment of Long-distance Broadband Communications in TV White Space
Kentaro Ishizu (NICT), Keigo Hasegawa (Hitachi Kokusai Electric), Keiichi Mizutani, Hirokazu Sawada (NICT), Kei Yanagisawa, Keat-Beng Toh, Masayuki Takekawa, Seishi Sasaki, Masahiro Asano (Hitachi Kokusai Electric), Homare Murakami, Hiroshi Harada (NICT) SR2013-105
 [more] SR2013-105
pp.61-68
SR 2013-10-24
13:00
Osaka Osaka Univ. [Technology Exhibit] White Space Communication Network with IEEE 802.11af/IEEE 802.22 Capable of Primary User Protection and Secondary User Coexistence
Kentaro Ishizu (NICT), Keigo Hasegawa, Masayuki Takekawa (Hitachi Kokusai Electric), Keiichi Mizutani, Zhou Lan, Ha Nguyen Tran, Stanislav Filin, Takeshi Matsumura (NICT), Kei Yanagisawa, Keat-Beng Toh (Hitachi Kokusai Electric), Homare Murakami (NICT), Seishi Sasaki, Masahiro Asano (Hitachi Kokusai Electric), Hiroshi Harada (NICT) SR2013-58
 [more] SR2013-58
pp.21-28
MW, AP
(Joint)
2013-09-13
15:00
Tokyo NHK Science Tech. Research Lab. Prototype Development of IEEE 802.22 Radio Transmission Equipment
Keigo Hasegawa, Masayuki Takekawa, Kei Yanagisawa, Keat-Beng Toh, Seishi Sasaki, Masahiro Asano (Hitachi Kokusai Electric) MW2013-96
White space utilization in TV band has drawn much attention in many countries as one of the solutions to solve the frequ... [more] MW2013-96
pp.47-52
OFT 2012-05-24
17:45
Gifu Hida, Earth Wisdom Center Low-loss large core fiber over wide wavelength range
Kazuhiko Aikawa, Masahiro Asano, Kazuyuki Hayashi, Masami Miyachi, Manabu Kudoh (Fujikura) OFT2012-8
In general, there are differences of core-material composition of low-loss optical fibers between visible wavelength reg... [more] OFT2012-8
pp.35-38
OPE 2005-10-12
13:25
Tokyo Kikai-Shinko-Kaikan Bldg Wide and Fast Wavelength-Tunable Mode-Locked Fiber Laser using Dispersion Tuning
Masahiro Asano, Shinji Yamashita (the Univ. of Tokyo)
We demonstrate a wide and fast wavelength-tunable mode-locked fiber laser based on tuning the mode-locking frequency. Th... [more] OPE2005-66
pp.7-11
 Results 1 - 14 of 14  /   
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