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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SRW | 2017-11-13 14:15 |
Tokyo | NICT (Koganei) | [Poster Presentation]
A Study on Arrival Path Extraction for Channel Modeling Hiroki Ohara, Hirokazu Sawada, Masayuki Oodo, Fumihide Kojima (NICT)  SRW2017-48 |
In high-speed and wide-band wireless communications, it is widely known that delayed paths arriving from various directi... [more] | SRW2017-48 pp.23-24 |
| RCS | 2017-10-20 16:50 |
Miyagi | Tohoku Institute of Technology | Propagation characteristics for viaduct and tunnel environments in 90 GHz band Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima, Hiroyo Ogawa (NICT), Kazuki Nakamura, Nagateru Iwasawa, Kouki Iwamoto, Kunihiro Kawasaki (RTRI), Nobuhiko Shibagaki (Hitachi Kokusai) RCS2017-202 |
[more] | RCS2017-202 pp.187-192 |
| AP, SAT, SANE (Joint) |
2017-07-28 09:50 |
Aichi | Nagoya Institute of Technology | Millimeter-wave Propagation Characteristics in Urban Environment Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima (NICT) AP2017-59 |
[more] | AP2017-59 pp.75-80 |
| SRW | 2017-06-12 16:00 |
Kanagawa | Fujitsu | [Invited Talk]
Trend of Radio-wave Propagation in ITU-R SG3 Hirokazu Sawada (NICT) SRW2017-8 |
[more] | SRW2017-8 p.35 |
| SR | 2017-05-26 10:00 |
Tokyo | Tokyo big sight | [Technology Exhibit]
Millimeter-wave Propagation Measurement System for 5G Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima (NICT) SR2017-12 |
[more] | SR2017-12 pp.67-74 |
| RCS, SR, SRW (Joint) |
2017-03-01 13:10 |
Tokyo | Tokyo Institute of Technology | A study of base station sharing method among multiple operators considering ratio of utilization Homare Murakami (NICT/Univ. of Tokyo), Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima (NICT), Hiroyuki Morikawa (Univ. of Tokyo) SR2016-91 |
Micro cell base stations introduced to 5G mobile systems cannot provide wide coverage area because of its propagation ch... [more] | SR2016-91 pp.1-8 |
| RCS, SR, SRW (Joint) |
2017-03-02 11:40 |
Tokyo | Tokyo Institute of Technology | Examination of Impulse Response Model in Non-Line-of-Sight Urban Environment for VHF-band Broadband Mobile Communication System Hiroki Ohara, Hirokazu Sawada, Masayuki Oodo, Fumihide Kojima, Hiroshi Harada (NICT) SRW2016-91 |
Due to the spectrum reallocation plan by the migration to digital terrestrial TV broadcasting in Japan, a portion of VHF... [more] | SRW2016-91 pp.135-140 |
| RCS, SR, SRW (Joint) |
2017-03-03 10:50 |
Tokyo | Tokyo Institute of Technology | Propagation characteristic for 90GHz band railway communication systems in a viaduct environment Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima, Hiroyo Ogawa (NICT), Nagateru Iwasawa, Kazuki Nakamura, Kunihiro Kawasaki (RTRI), Mitsuru Watanabe, Nobuhiko Shibagaki (HItachi) SRW2016-99 |
[more] | SRW2016-99 pp.171-176 |
| RCS, SR, SRW (Joint) |
2017-03-03 11:15 |
Tokyo | Tokyo Institute of Technology | Propagation measurement at 300 GHz in server room environment Hirokazu Sawada, Fujii Katsumi, Akifumi Kasamatsu, Hiroyo Ogawa, Kentaro Ishizu, Fumihide Kojima (NICT) SRW2016-100 |
[more] | SRW2016-100 pp.177-181 |
| SRW | 2016-12-19 16:15 |
Tokyo | Tokyo City Univ., Setagaya Campus | [Panel Discussion]
Future Perspective of Millimeter- and Terahertz -waves Communications Hirokazu Sawada (NICT) SRW2016-66 |
[more] | SRW2016-66 p.51 |
| RCS, CCS, SR, SRW (Joint) |
2016-03-02 09:00 |
Tokyo | Tokyo Institute of Technology | Impulse Response Measurement in Non-Line-of-Sight Urban Environment for VHF-band Broadband Mobile Communication System Hiroki Ohara, Hirokazu Sawada, Masayuki Oodo, Hideki Kobayashi, Fumihide Kojima (NICT) SRW2015-70 |
With the end of analog TV broadcasting in Japan, it is expected that the Public broadband mobile communication system (P... [more] | SRW2015-70 pp.1-6 |
| RCS, CCS, SR, SRW (Joint) |
2016-03-02 13:15 |
Tokyo | Tokyo Institute of Technology | [Invited Lecture]
Standardization and Millimeter-wave Channel Model Development Hirokazu Sawada, Keentaro Ishizu, Fumihide Kojima (NICT) SRW2015-77 |
[more] | SRW2015-77 pp.41-44 |
| SRW | 2015-10-28 14:40 |
Tokyo | Kikai-Sinko-Kaikan Bldg. (Tokyo) | A Comparative Analysis of Measured Electric Field Strength of DTV and its Predictions Hirokazu Sawada, Tomoshige Kan, Gabriel Porto Villardi, Kentaro Ishizu, Fumihide Kojima (NICT) SRW2015-53 |
[more] | SRW2015-53 pp.13-18 |
| SR, SRW (Joint) |
2015-10-27 09:30 |
Tokyo | KKE | [Technology Exhibit]
Development of Advanced Database for TV White Space Interference Management Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima (NICT) SR2015-66 SRW2015-47 |
[more] | SR2015-66 SRW2015-47 pp.67-68 |
| SRW | 2015-08-24 09:50 |
Tokyo | Shibaura Institute of Technology | Wide Band Delay Profile Measurement in UHF band Hirokazu Sawada, Tomoshige Kan, Kentaro Ishizu, Fumihide Kojima, Hiroshi Harada (NICT) SRW2015-13 |
[more] | SRW2015-13 pp.11-16 |
| SRW | 2015-06-15 14:15 |
Kanagawa | Fujitsu | Development of path loss and throughput estimation models using IEEE 802.11af Prototypes Hirokazu Sawada, Keiichi Mizutani, Kentaro Ishizu, Takeshi Matsumura, Ha-Nguyen Tran, Homare Murakami, Fumihide Kojima (NICT), Hiroshi Harada (Kyoto Univ.) SRW2015-4 |
[more] | SRW2015-4 pp.19-25 |
| RCS, IN (Joint) |
2015-05-22 15:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Receiver Diversity Performance for VHF Broadband Mobile Communications Hideki Kobayashi (NICT/National Police Academy), Hirokazu Sawada, Tomoshige Kan, Masayuki Oodo, Hiroshi Harada, Fumihide Kojima, Hiroyuki Yano (NICT), Noriyuki Soma, Masafumi Moriyama, Osamu Yamamoto, Takaaki Yamato, Shigeki Yamamoto (National Police Academy) RCS2015-44 |
In this report, a receiver diversity performance at base station for a VHF-band broadband mobile communication system is... [more] | RCS2015-44 pp.113-118 |
| SRW | 2014-10-27 11:10 |
Chiba | Chiba University | Wide area electric field strength measurement of DTV broadcasting for TV white space area estimation Hirokazu Sawada, Tomoshige Kan, Gabriel Villardi, Kentaro Ishizu (NICT) SRW2014-26 |
[more] | SRW2014-26 pp.7-12 |
| SRW | 2014-08-18 13:00 |
Kanagawa | NICT(YRP) | Building Penetration Loss Measurements for TVWS Systems Hirokazu Sawada, Tomoshige Kan, Keiichi Mizutani, Kentaro Ishizu, Homare Murakami, Hiroshi Harada (NICT) SRW2014-17 |
For the coexistence management between primary and secondary users in TV white space, a simple propagation model for sho... [more] | SRW2014-17 pp.7-12 |
| SRW | 2014-06-16 10:45 |
Kanagawa | Mitsubishi Electric | Odd-Number-Element Double Slot Array Antennas for Simplified 60GHz Beam-forming Antenna Yosuke Sato (Tohoku Univ.), Hirokazu Sawada (NICT), Shuzo Kato (Tohoku Univ.) SRW2014-3 |
In order to lower beam-forming antenna implementation complexity (phase shifters (90 degree step)) for multi-Gbps transm... [more] | SRW2014-3 pp.13-16 |
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