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ORCIDHirokazu Sawada
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2020 – today
- 2024
[j6]Masayuki Shirakawa
, Rei Furukawa, Gilbert Ching, Kenshi Horihata, Yukiko Kishiki, Hirokazu Sawada, Azril Haniz, Takeshi Matsumura, Homare Murakami, Fumihide Kojima:
Path Clustering for Radio Propagation Prediction With Moving Object in Indoor Environment. IEEE Access 12: 59007-59017 (2024)- [c31]Michiharu Nakamura, Hirokazu Sawada, Takeshi Matsumura:
A Simple Access Point Synchronization for THz Wireless Access System. WCNC 2024: 1-6 - [c30]Changwoo Pyo, Hirokazu Sawada, Takeshi Matsumura:
Deep Learning-Based Radio Estimation Using a Semi-Automatically Created Indoor Building Information. WCNC 2024: 1-6 - 2023
- [j5]Changwoo Pyo, Hirokazu Sawada, Takeshi Matsumura:
A Deep Learning-Based Indoor Radio Estimation Method Driven by 2.4 GHz Ray-Tracing Data. IEEE Access 11: 138215-138228 (2023) - [c29]Azril Haniz, Hikaru Kawasaki, Genki Hosokawa, Takuro Urushibata, Yasuyuki Yanagi, Tadahide Kunitachi, Hirokazu Sawada, Takeshi Matsumura:
Novel Ray-tracing Received Power Adjustment Approach Based on the Ratio of Wavelength and Object Size. PIMRC 2023: 1-6 - 2022
- [c28]Minseok Kim, Hibiki Tsukada, Keiichiro Kumakura, Riku Takahashi, Naoya Suzuki, Hirokazu Sawada, Takeshi Matsumura:
A 24/60-GHz Dual-Band Double-Directional Channel Sounder Using COTS Phased Arrays. ICC Workshops 2022: 1113-1117 - [c27]Yuichi Ambe, Yoshito Okada, Yoshiki Yokota, Satoshi Abe, Fumihide Kojima, Toshiyuki Miyachi, Hiroaki Harai, Hirokazu Sawada, Takeshi Matsumura, Kazunori Ohno, Satoshi Tadokoro:
Radio-Map-Based Flight Planning of Autonomous Repeater Drones for Bridge Inspection. PIMRC 2022: 1-6 - [c26]Azril Haniz, Hirokazu Sawada, Hikaru Kawasaki, Kazuo Ibuka, Takeshi Matsumura, Fumihide Kojima, Kensuke Matsui, Genki Hosokawa, Yasuyuki Yanagi, Tadahide Kunitachi:
Long-term Power Fluctuation and Delay Spread Characteristics in a Factory Environment at 2.4 GHz and 5.2 GHz Bands. PIMRC 2022: 1-6 - [c25]Fumihide Kojima, Toshiyuki Miyachi, Takeshi Matsumura, Hirokazu Sawada, Hiroaki Harai, Hiroshi Harada:
A Large-Scale Wireless Emulation Environment with Interaction between Physical and Virtual Radio Nodes for Beyond 5G Systems. PIMRC 2022: 1-6 - [c24]Ayaka Sakaguchi, Kensuke Sakamoto, Yuki Yamakawa, Waka Mimura, Toshiyuki Miyachi, Fumihide Kojima, Hiroaki Harai, Hirokazu Sawada, Homare Murakami, Takeshi Matsumura:
Design of Radio Wave Visualization System for Office Planners and Verification of Propagation Area Visualization. PIMRC 2022: 1-6 - [c23]Chang Woo Pyo, Hirokazu Sawada, Takeshi Matsumura:
RadioResUNet: Wireless Measurement by Deep Learning for Indoor Environments. WPMC 2022: 104-109 - [c22]Homare Murakami, Hirokazu Sawada, Takeshi Matsumura:
Interference Analysis for Spectrum Sharing of Multiple Local 5G gNBs by Different Operators in a Building. WPMC 2022: 164-169 - [c21]Takeshi Matsumura, Hirokazu Sawada, Toshiyuki Miyachi, Fumihide Kojima, Hiroaki Harai, Ayaka Sakaguchi, Yoshihisa Nishigori, Hiroshi Harada:
Development and Initial Implementation of Large-scale Wireless Emulator Toward Beyond 5G. WPMC 2022: 199-204 - [c20]Takeshi Matsumura, Hirokazu Sawada:
Investigation of Beyond 5G-based Physical Radio Node Emulation for Large-scale Wireless Emulator. WPMC 2022: 400-405 - 2021
- [c19]Alberto S. Bañacia, Rosana J. Ferolin, Hirokazu Sawada, Kentaro Ishizu, Kazuo Ibuka, Takeshi Matsumura, Fumihide Kojima:
Coexistence of a Low-power IEEE 802.11af Secondary User in TV White Space with Analog and Digital TV systems. WPMC 2021: 1-6 - [c18]Chang Woo Pyo, Hirokazu Sawada, Takeshi Matsumura:
Experimental Study of Dynamic Data Traffic Control for the Cooperating System of Smart Personal Mobility and Indoor Intelligent Infrastructure. WPMC 2021: 1-6 - [c17]Hirokazu Sawada, Hikaru Kawasaki, Azril Haniz, Kazuo Ibuka, Takeshi Matsumura, Fumihide Kojima, Kotaro Ikeda, Kensuke Matsui, Takuto Kurose, Yasuyuki Yanagi, Tadahide Kunitachi:
Analysis of 920 MHz Band Received Power Fluctuation in a Factory Environment. WPMC 2021: 1-5
2010 – 2019
- 2018
- [j4]Kyoichi Iigusa, Hirokazu Sawada, Fumihide Kojima, Hiroshi Harada:
Wideband Rectangular Antenna Fed Sideways from a Ground Plate. IEICE Trans. Commun. 101-B(1): 176-184 (2018) - [j3]Hiroki Ohara, Hirokazu Sawada, Masayuki Oodo, Fumihide Kojima, Hiroshi Harada, Kentaro Saito, Jun-ichi Takada:
Characterization of Broadband Mobile Communication Channel in 200MHz Band Based on Saleh-Valenzuela Model. IEICE Trans. Commun. 101-B(11): 2277-2288 (2018) - [c16]Jeric G. Brioso, Alberto S. Bañacia, Hirokazu Sawada, Kentaro Ishizu, Kazuo Ibuka, Takeshi Matsumura, Fumihide Kojima:
Evaluation of IEEE 802.11af Compliant Devices for Vehicle to Infrastructure Communications in Suburban Environment. VNC 2018: 1-4 - [c15]Jeric G. Brioso, Alberto S. Bañacia, Hirokazu Sawada, Kentaro Ishizu, Kazuo Ibuka, Takeshi Matsumura, Fumihide Kojima:
Vehicle to Vehicle Communications at Suburban Environment using IEEE 802.11af compliant Devices. WPMC 2018: 85-89 - [c14]Alberto S. Bañacia, Jeric G. Brioso, Hirokazu Sawada, Kentaro Ishizu, Kazuo Ibuka, Takeshi Matsumura, Fumihide Kojima:
Experimental Verification of ITU-R P.1411 as Path Loss Prediction Model for IEEE 802.11af. WPMC 2018: 556-559 - 2017
- [c13]Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima, Hiroyo Ogawa, Kazuki Nakamura, Nagateru Iwasawa, Kunihiro Kawasaki, Nobuhiko Shibagaki:
90-GHz band propagation characteristics in viaduct environment for railway radiocommunication system between train and trackside. WPMC 2017: 131-137 - [c12]Antonio Montejo, Alberto Bañacia, Hirokazu Sawada, Kentaro Ishizu, Kazuo Ibuka, Fumihide Kojima:
Implementation of a multi-hop network at the university campus using an IEEE 802.11af-compliant Network. WPMC 2017: 173-180 - 2016
- [c11]Hiroki Ohara, Hirokazu Sawada, Masayuki Oodo, Hideki Kobayashi, Fumihide Kojima, Hiroshi Harada, Jun-ichi Takada:
Power delay profile measurement for VHF-band broadband mobile communication system. PIMRC 2016: 1-6 - 2015
- [c10]Hirokazu Sawada, Masayuki Oodo, Tomoshige Kan, Fumihide Kojima, Hiroshi Harada, Hideki Kobayashi, Noriyuki Soma, Masafumi Moriyama, Osamu Yamamoto, Takaaki Yamato, Shigeki Yamamoto:
Receiver diversity evaluation for a VHF band broadband mobile communication system. APCC 2015: 104-108 - [c9]Keiichi Mizutani, Kentaro Ishizu, Takeshi Matsumura, Ha Nguyen Tran, Hirokazu Sawada, Homare Murakami, Fumihide Kojima, Hiroshi Harada:
IEEE 802.11af Indoor Experiment in UK Ofcom TVWS Trial Pilot Program. VTC Spring 2015: 1-5 - [c8]Hirokazu Sawada, Keiichi Mizutani, Kentaro Ishizu, Takeshi Matsumura, Ha Nguyen Tran, Homare Murakami, Fumihide Kojima, Hiroshi Harada:
Path Loss and Throughput Estimation Models for an IEEE 802.11af Prototype. VTC Spring 2015: 1-5 - 2014
- [c7]Kentaro Ishizu, Keigo Hasegawa, Keiichi Mizutani, Hirokazu Sawada, Kei Yanagisawa, Keat-Beng Toh, Takeshi Matsumura, Seishi Sasaki, Masahiro Asano, Homare Murakami, Hiroshi Harada:
Field experiment of long-distance broadband communications in TV white space using IEEE 802.22 and IEEE 802.11af. WPMC 2014: 468-473 - 2012
- [c6]Hirokazu Sawada, Shunya Takahashi, Shuzo Kato:
Disconnection Probability Improvement by Using Artificial Multi Reflectors for Millimeter-Wave Indoor Wireless Communications. VTC Spring 2012: 1-5 - [c5]Masahiro Umehira, Toshiaki Sasame, Hirokazu Sawada:
An Orthogonal Polarization Based MIMO Transmission for Advanced 60GHz WLAN. VTC Spring 2012: 1-5 - 2010
- [c4]Hirokazu Sawada, Hiroyuki Nakase, Shuzo Kato, Masahiro Umehira, Katsuyoshi Sato, Hiroshi Harada:
Impulse Response Model and Parameters for Indoor Channel Modeling at 60GHz. VTC Spring 2010: 1-5
2000 – 2009
- 2009
- [j2]Hirokazu Sawada, Hiroyuki Nakase, Katsuyoshi Sato, Hiroshi Harada:
A sixty GHz vehicle area network for multimedia communications. IEEE J. Sel. Areas Commun. 27(8): 1500-1506 (2009) - [c3]Hirokazu Sawada, Hiroyuki Nakase, Shuzo Kato, Masahiro Umehira, Katsuyoshi Sato, Hiroshi Harada:
Polarization dependence in double directional propagation channel at 60GHz. PIMRC 2009: 3010-3014 - [c2]Hirokazu Sawada, Tomohide Tomatsu, Gen Ozaki, Hiroyuki Nakase, Shuzo Kato, Katsuyoshi Sato, Hiroshi Harada:
A Sixty GHz Intra-Car Multi-Media Communications System. VTC Spring 2009 - 2007
- [j1]Tsukasa Yoneyama, Hirokazu Sawada, Takashi Shimizu:
NRD-Guide Passive Components and Devices for Millimeter Wave Wireless Applications. IEICE Trans. Electron. 90-C(12): 2170-2177 (2007) - [c1]Katsuyoshi Sato, Hirokazu Sawada, Yozo Shoji, Shuzo Kato:
Channel Model for Millimeter Wave WPAN. PIMRC 2007: 1-5
Coauthor Index
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