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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 92  /  [Next]  
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
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