Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS |
2024-04-26 13:50 |
Hiroshima |
(Primary: On-site, Secondary: Online) |
Basic Study on Orthogonal FSK Transmission in Terahertz Band Masafumi Moriyama, Hirokazu Sawada, Takeshi Matsumura (NICT) |
[more] |
|
RCS, SR, SRW (Joint) |
2024-03-15 13:25 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Construction of the evaluation environment employed for the wireless emulator
-- Configuration and basic tests for the large-scale virtual evaluation environment -- Fumihide Kojima, Shinsuke Miwa, Toshiyuki Miyachi, Takeshi Matsumura, Hirokazu Sawada, Hiroaki Harai (NICT), Jun-ichi Takada (Tokyo Tech), Hiroshi Harada (Kyoto Univ.) SRW2023-73 |
This paper reports on the construction of the evaluation environment for wireless emulator that enables evaluations on a... [more] |
SRW2023-73 pp.100-105 |
RCS, SR, SRW (Joint) |
2024-03-15 13:50 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Radio Channel Emulation in Cyber-Physical Wireless Emulator Jun-ichi Takada, Nopphon Keerativoranan (Tokyo Tech), Tatsuya Nagao, Takahiro Hayashi (KDDI Research), Minseok Kim (Niigata Univ.), Yukiko Kishiki, Kenshi Horihata, Gilbert Sih Ching, Kento Sugiyama (KKE), Kentaro Saito (Tokyo Tech), Tetsuro Imai, Miyuki Hirose (TDU), Azril Haniz, Hirokazu Sawada, Takeshi Matsumura (NICT) SRW2023-74 |
[more] |
SRW2023-74 pp.106-111 |
RCS, SR, SRW (Joint) |
2024-03-15 14:50 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Development of virtual nodes and reconfigurable radio devices for the IEEE 802.11 based wireless emulation
-- Implementations of IEEE 802.11g/ax protocol stacks and interoperability tests -- Fumihide Kojima, Masahiro Takagi, Toshiyuki Miyachi, Takeshi Matsumura, Hirokazu Sawada, Hiroaki Harai (NICT), Jun-ichi Takada (Tokyo Tech), Hiroshi Harada (Kyoto Univ) SRW2023-76 |
This paper reports on the developed IEEE 802.11 based virtual nodes and reconfigurable radio devices employed in the wir... [more] |
SRW2023-76 pp.118-123 |
RCS, SR, SRW (Joint) |
2024-03-15 15:40 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Optimal Utilization Technology of Wireless Communications for Smart Office Systems Ayaka Sakaguchi, Kensuke Sakamoto, Yuki Yamakawa, Waka Mimura (KOKUYO), Hirokazu Sawada, Fumihide Kojima, Takeshi Matsumura (NICT) SRW2023-78 |
[more] |
SRW2023-78 pp.129-134 |
SR |
2024-01-25 10:55 |
Nagano |
Nagano-ken JA building (Primary: On-site, Secondary: Online) |
Joint Sensing of Wideband Sparse Angular-Frequency Spectrum based on Compressive Sensing
-- Experimental Verification in the 4.8GHz Band -- Azril Haniz, Hirokazu Sawada, Takeshi Matsumura (NICT) SR2023-70 |
Recent trends have shown that spectrum regulators are opening up more shared spectrum bands for fifth generation mobile ... [more] |
SR2023-70 pp.9-16 |
SR |
2024-01-25 11:20 |
Nagano |
Nagano-ken JA building (Primary: On-site, Secondary: Online) |
Radiation Pattern Evaluation of Drone-mounted Antenna to Improve Accuracy of Wireless Emulator Hirokazu Sawada, Takashi Matsuda, Kyoichi Iigusa, Takeshi Matsumura (NICT) SR2023-71 |
[more] |
SR2023-71 pp.17-21 |
MIKA (3rd) |
2023-10-11 14:30 |
Okinawa |
Okinawa Jichikaikan (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Verified the effectiveness of the simulator on radio waves in building a local 5G communication Ryo Shoda, Ryohei Kotaka (TOPPAN), Homare Murakami, Hirokazu Sawada, Takeshi Matsumura (NICT) |
With the spread of "local 5G," which allows companies and local governments to build 5th-generation mobile communication... [more] |
|
SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-14 13:35 |
Osaka |
Osaka University Nakanoshima Center + Online (Primary: On-site, Secondary: Online) |
Deep Learning-Based Radio Estimation Using Indoor Building Information Changwoo Pyo, Hirokazu Sawada, Takeshi Matsumura (NICT) RCS2023-98 |
[more] |
RCS2023-98 pp.97-102 |
AP |
2023-05-11 14:55 |
Okinawa |
Okinawa Gender Equality Center (Primary: On-site, Secondary: Online) |
Reflected and Diffracted Wave Power Calculation Method based on Wavelength and Object Size
-- Preliminary Investigation of Localized Parameter Tuning -- Azril Haniz, Hikaru Kawasaki (NICT), Genki Hosokawa, Takuro Urushibata (YAZAKI Corporation), Yasuyuki Yanagi (Yazaki Energy System Corporation), Tadahide Kunitachi (YAZAKI Corporation), Hirokazu Sawada, Takeshi Matsumura (NICT) AP2023-15 |
In order to reduce the errors of the simulated received power at sub-6 GHz frequencies due to the wavelength being large... [more] |
AP2023-15 pp.37-42 |
AP |
2023-05-12 10:25 |
Okinawa |
Okinawa Gender Equality Center (Primary: On-site, Secondary: Online) |
Investigation of terahertz band indoor propagation loss model Hirokazu Sawada, Kazuki Tsushima, Riku Yoshino, Keizo Inagaki, Atsushi Kanno, Katsumi Fujii, Jerdvisanop Chakarothai, Norihiko Sekine, Akifumi Kasamatsu, Hiroyo Ogawa, Takeshi Matsumura (NICT) AP2023-18 |
Sub-terahertz and terahertz waves are being considered for use in next-generation wireless communications to enable seve... [more] |
AP2023-18 pp.54-58 |
AP |
2023-03-16 14:35 |
Toyama |
Toyama Prefectural Civic Hall (Primary: On-site, Secondary: Online) |
A Study on Propagation Loss Measurement Scheme using CW Signal under Burst-Interference Environments Tomoaki Kumagai, Kenta Takishima, Mio Ishida (NTT-AT), Masanori Ichinose (NTT Com), Hirokazu Sawada, Homare Murakami, Takeshi Matsumura (NICT) AP2022-238 |
Radio wave propagation models are essential for designing wireless networks such as beyond 5G/6G networks. Generally, pr... [more] |
AP2022-238 pp.25-30 |
RCS, SR, SRW (Joint) |
2023-03-02 11:15 |
Tokyo |
Tokyo Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
Spectrum Sharing on Evaluation of Mixture of Synchronous TDD and Semi-synchronous TDD Local 5G in Building Homare Murakami, Hirokazu Sawada, Takeshi Matsumura (NICT) SR2022-87 |
Local 5G offers a choice of several TDD patterns to support various types of use cases. Besides synchronous TDD, which i... [more] |
SR2022-87 pp.16-23 |
AP |
2023-02-16 11:00 |
Miyagi |
Tohoku University, Aobayama Campus (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Channel model development for factory environment in the wireless emulator project Hirokazu Sawada, Azril Haniz, Takeshi Matsumura (NICT) AP2022-212 |
Research and development of a wireless emulator is being conducted to realize real-time emulation and evaluation of comm... [more] |
AP2022-212 pp.83-88 |
AP |
2023-02-17 11:50 |
Miyagi |
Tohoku University, Aobayama Campus (Primary: On-site, Secondary: Online) |
Development of Sub-6 GHz Double-Directional Radio Channel Sounder and Urban Cellular Channel Measurement Results Minseok Kim, Tsukada Hibiki, Riku Takahashi, Naoya Suzuki, Hino Issei (Niigata Univ.), Hirokazu Sawada, Takeshi Matsumura (NICT) AP2022-225 |
In recent years, usage scenarios have diversified with the development of wireless communication technology. The importa... [more] |
AP2022-225 pp.157-162 |
SRW |
2023-01-16 11:20 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Propagation Characteristics Analysis in Minimal Fab Factory Environment Hirokazu Sawada, Azril Haniz, Chang-Woo Pyo, Takeshi Matsumura (NICT) SRW2022-37 |
Propagation models need to be developed to verify the use of wireless systems in factory environments in advance. Since ... [more] |
SRW2022-37 pp.13-18 |
SRW, SeMI, CNR (Joint) |
2022-11-24 13:20 |
Tochigi |
Epinard Nasu (Primary: On-site, Secondary: Online) |
Reflected and Diffracted Wave Power Calculation Method based on Wavelength and Object Size
-- Preliminary Verification in a Factory Environment -- Azril Haniz, Hirokazu Sawada, Hikaru Kawasaki, Kazuo Ibuka, Takeshi Matsumura, Fumihide Kojima (NICT), Kensuke Matsui, Genki Hosokawa (YAZAKI Corporation), Yasuyuki Yanagi (Yazaki Energy System Corporation), Tadahide Kunitachi (YAZAKI Corporation) SRW2022-17 |
In this paper, the received power calculated using ray-tracing simulations is compared with measurement data obtained in... [more] |
SRW2022-17 pp.7-12 |
AP |
2022-10-20 15:35 |
Gifu |
GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
Radiation Pattern Analysis and Measurement on Vehicle Shape for Automotive Antenna Hirokazu Sawada, Takashi Matsuda, Kyoichi Iigusa, Takeshi Matsumura (NICT) AP2022-144 |
In the research and development of wireless emulators, which enable the verification of various wireless systems in a vi... [more] |
AP2022-144 pp.228-232 |
SRW |
2022-08-22 10:15 |
Online |
Online |
Analysis of 2.4 GHz Band Received Power Fluctuation in a Factory Environment Azril Haniz, Hirokazu Sawada, Hikaru Kawasaki, Kazuo Ibuka, Takeshi Matsumura, Fumihide Kojima (NICT), Kensuke Matsui, Genki Hosokawa (YAZAKI Corporation), Yasuyuki Yanagi (Yazaki Energy System Corporation), Tadahide Kunitachi (YAZAKI Corporation) SRW2022-9 |
In this paper, analysis of a long term radio propagation channel measurement to investigate the temporal fluctuations of... [more] |
SRW2022-9 pp.2-7 |
NS, SR, RCS, SeMI, RCC (Joint) |
2022-07-13 15:35 |
Ishikawa |
The Kanazawa Theatre + Online (Primary: On-site, Secondary: Online) |
Wireless Measurement by Deep Learning for Indoor Environments Changwoo Pyo, Hirokazu Sawada, Takeshi Matsumura (NICT) RCS2022-74 |
[more] |
RCS2022-74 pp.32-37 |