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Takefumi Hiraguri
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2020 – today
- 2024
- [j30]Yuna Sawada, Shino Shiraki, Takahiro Matsuda, Takefumi Hiraguri, Kazuki Maruta, Tomotaka Kimura:
Time Division Wireless Power Transfer Using Receiver Grouping. IEEE Access 12: 109930-109942 (2024) - 2023
- [j29]Takefumi Hiraguri, Hiroyuki Shimizu, Tomotaka Kimura, Takahiro Matsuda, Kazuki Maruta, Yoshihiro Takemura, Takeshi Ohya, Takuma Takanashi:
Autonomous Drone-Based Pollination System Using AI Classifier to Replace Bees for Greenhouse Tomato Cultivation. IEEE Access 11: 99352-99364 (2023) - [c25]Yuna Sawada, Shino Shiraki, Takahiro Matsuda, Takefumi Hiraguri, Kazuki Maruta, Tomotaka Kimura:
TDM Scheduling Based on Receiver Grouping for Indoor Wireless Power Transfer. APCC 2023: 166-171 - [c24]Kota Hatajiri, Tomotaka Kimura, Takefumi Hiraguri, Jun Cheng:
Agricultural Field Monitoring System Using DTN-based Drone Networks. ICCE-Taiwan 2023: 645-646 - [c23]Takumu Uda, Takahiro Matsuda, Takefumi Hiraguri:
Adaptive Antenna Selection for Two-Hop Full-Duplex UAV Relay Networks. ICCE-Taiwan 2023: 647-648 - [c22]Takayuki Mori, Shinichi Murata, Takahiro Matsuda, Takefumi Hiraguri:
Performance Improvement of Maximum Likelihood Wave Source Localization with LOS/NLOS Identification. ICCE-Taiwan 2023: 649-650 - [c21]Chikayo Hata, Takefumi Hiraguri, Takahiro Matsuda, Tetsuro Imai, Jiro Hirokawa:
Directional beam antenna control in response to drone tilts. ICCE-Taiwan 2023: 653-654 - [c20]Naoki Yamada, Takefumi Hiraguri, Hiroyuki Shimizu, Tomotaka Kimura, Tomohito Shimada, Akane Shibasaki, Yoshihiro Takemura:
Drone Flight Experiment using RTK Positioning for Pear Pollination. ICCE-Taiwan 2023: 655-656 - 2022
- [j28]Kentaro Nishimori, Kazuki Maruta, Takefumi Hiraguri, Hidehisa Shiomi:
Fast-Converging Constant Modulus Algorithm with Variable Step Size for Multibeam Massive MIMO. IEICE Trans. Commun. 105-B(10): 1154-1161 (2022) - [c19]Keita Endo, Tomotaka Kimura, Nobuhiko Itoh, Takefumi Hiraguri:
Semantic Segmentation Based Field Detection Using Drones. ICCE-TW 2022: 213-214 - 2021
- [c18]Eisuke Fukuyama, Tomotaka Kimura, Nobuhiko Itoh, Takefumi Hiraguri:
Study of flower image classification using deep learning to support agricultural pollination. ICCE-TW 2021: 1-2 - 2020
- [j27]Naoki Matsumura, Kentaro Nishimori, Ryotaro Taniguchi, Takefumi Hiraguri, Takashi Tomura, Jiro Hirokawa:
Novel Unmanned Aerial Vehicle-Based Line-of-Sight MIMO Configuration Independent of Transmitted Distance Using Millimeter Wave. IEEE Access 8: 11679-11691 (2020) - [j26]Takahiro Matsuda, Megumi Kaneko, Takefumi Hiraguri, Kentaro Nishimori, Tomotaka Kimura, Akihiro Nakao:
Adaptive Direction Control for UAV Full-Duplex Relay Networks Using Multiple Directional Antennas. IEEE Access 8: 85083-85093 (2020) - [j25]Takefumi Hiraguri, Kentaro Nishimori, Isamu Shitara, Tsutomu Mitsui, Takuya Shindo, Tomotaka Kimura, Takahiro Matsuda, Hideaki Yoshino:
A Cooperative Transmission Scheme in Drone-Based Networks. IEEE Trans. Veh. Technol. 69(3): 2905-2914 (2020) - [c17]H. Iida, Isamu Shitara, Hideaki Yoshino, Takahiro Matsuda, Takefumi Hiraguri:
A Study on Quality of Experience with Scalable Video Coding Transmission Rate Control in Wireless LAN Multicast Environments with Background Traffic. ICCE-TW 2020: 1-2 - [c16]Kosuke Shikama, Takahiro Matsuda, Takefumi Hiraguri, Takanori Hayashi, Ryo Yamamoto:
Improving QoE Fairness Using the IEEE 802.11e Priority Control Mechanism. ICCE-TW 2020: 1-2
2010 – 2019
- 2019
- [c15]Hideaki Yoshino, Kenko Ota, Takefumi Hiraguri:
Optimal Parameters of Nonstatistical Sensor Data Aggregation Minimizing Latency in IoT Gateway. GLOBECOM 2019: 1-6 - [c14]Hideaki Yoshino, Kenko Ota, Takefumi Hiraguri:
Adaptive Control of Nonstatistical Sensor Data Aggregation to Minimize Latency in IoT Gateways. ITNAC 2019: 1-6 - [c13]Kentaro Nishimori, Kazuki Maruta, Takefumi Hiraguri:
Blind Adaptive Array by Constant Modulus with Variable Step Size for Multi-beam Massive MIMO. WSA 2019: 234-239 - 2018
- [j24]Nobuyoshi Kikuma, Kentaro Nishimori, Takefumi Hiraguri:
Effect of User Antenna Selection on Block Beamforming Algorithms for Suppressing Inter-User Interference in Multiuser MIMO System. IEICE Trans. Commun. 101-B(7): 1523-1535 (2018) - [j23]Fumiya Muramatsu, Kentaro Nishimori, Ryotaro Taniguchi, Takefumi Hiraguri:
Multi-Beam Massive MIMO with Beam-Selection Using Only Amplitude Information in Uplink Channel. IEICE Trans. Commun. 101-B(7): 1544-1551 (2018) - [j22]Takefumi Hiraguri, Kentaro Nishimori, Yoshiaki Morino, Mamoru Ugajin, Hideaki Yoshino:
Novel Access Control Scheme with Collision Detection Utilizing MIMO Transmission Procedure in WLAN Systems. IEICE Trans. Commun. 101-B(7): 1561-1574 (2018) - [j21]Hideaki Yoshino, Kenko Ota, Takefumi Hiraguri:
Queueing Delay Analysis and Optimization of Statistical Data Aggregation and Transmission Systems. IEICE Trans. Commun. 101-B(10): 2186-2195 (2018) - [c12]Hideaki Yoshino, Kenko Ota, Takefumi Hiraguri:
Adaptive Control of Statistical Data Aggregation to Minimize Latency in IoT Gateway. GIIS 2018: 1-4 - [c11]Rafail Ismayilov, Megumi Kaneko, Takefumi Hiraguri, Kentaro Nishimori:
Adaptive Beam-Frequency Allocation Algorithm with Position Uncertainty for Millimeter-Wave MIMO Systems. VTC Spring 2018: 1-5 - 2017
- [j20]Mamoru Ugajin, Takuya Shindo, Tsuneo Tsukahara, Takefumi Hiraguri:
An (N+N2)-Mixer Architecture for a High-Image-Rejection Wireless Receiver with an N-Phase Active Complex Filter. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 100-A(4): 1008-1014 (2017) - [c10]Yoshiaki Morino, Takefumi Hiraguri, Hideaki Yoshino, Kentaro Nishimori:
Proposal of overhead-less access control scheme for multi-beam massive MIMO transmission in WLAN systems. Med-Hoc-Net 2017: 1-5 - [i1]Rafail Ismayilov, Megumi Kaneko, Takefumi Hiraguri, Kentaro Nishimori:
Adaptive Beam-Frequency Allocation Algorithm with Position Uncertainty for Millimeter-Wave MIMO Systems. CoRR abs/1711.01800 (2017) - 2016
- [j19]Hayate Kimoto, Kentaro Nishimori, Takefumi Hiraguri, Hideo Makino:
FFT-Based Block Diagonalization at User Terminal for Implicit Beamforming in Multiuser MIMO System. IEICE Trans. Commun. 99-B(1): 115-123 (2016) - [j18]Yoshiaki Morino, Takefumi Hiraguri, Hideaki Yoshino, Kentaro Nishimori, Takahiro Matsuda:
A Novel Collision Avoidance Scheme Using Optimized Contention Window in Dense Wireless LAN Environments. IEICE Trans. Commun. 99-B(11): 2426-2434 (2016) - 2015
- [j17]Takefumi Hiraguri, Kentaro Nishimori:
Survey of Transmission Methods and Efficiency Using MIMO Technologies for Wireless LAN Systems. IEICE Trans. Commun. 98-B(7): 1250-1267 (2015) - 2014
- [j16]Ryochi Kataoka, Kentaro Nishimori, Takefumi Hiraguri, Naoki Honma, Tomohiro Seki, Ken Hiraga, Hideo Makino:
Analog Decoding Method for Simplified Short-Range MIMO Transmission. IEICE Trans. Commun. 97-B(3): 620-630 (2014) - [j15]Kentaro Nishimori, Takefumi Hiraguri, Hideo Makino:
Transmission Rate by User Antenna Selection for Block Diagonalization Based Multiuser MIMO System. IEICE Trans. Commun. 97-B(10): 2118-2126 (2014) - [j14]Toshiyuki Ogawa, Takefumi Hiraguri, Kentaro Nishimori, Hideaki Yoshino, Kenya Jin'no:
Multicast Transmission Access Control Methods for Various Wireless LAN Applications. IEICE Trans. Commun. 97-B(11): 2534-2542 (2014) - [j13]Keisuke Kimura, Takayuki Kimura, Takefumi Hiraguri, Kenya Jin'no:
Effective Method for Wind and Solar Power Grid Systems Based on Recurrent Neural Networks. J. Adv. Comput. Intell. Intell. Informatics 18(6): 1034-1043 (2014) - [c9]Yozo Shoji, Takefumi Hiraguri:
Virtualization-capable multichannel WiFi system with a coordinated downlink transmission technique. CSNDSP 2014: 502-507 - [c8]Kenya Jin'no, Takuya Shindo, Takuya Kurihara, Takefumi Hiraguri, Hideaki Yoshino:
Canonical deterministic particle swarm optimization to sustain global search. SMC 2014: 2440-2445 - [c7]Yoshiaki Morino, Takefumi Hiraguri, Toshiyuki Ogawa, Hideaki Yoshino, Kentaro Nishimori:
Analysis evaluation of collision detection scheme utilizing MIMO transmission. WiMob 2014: 28-32 - 2013
- [j12]Akira Kishida, Masashi Iwabuchi, Toshiyuki Shintaku, Tetsu Sakata, Takefumi Hiraguri, Kentaro Nishimori:
User-Oriented QoS Control Method Based on CSMA/CA for IEEE802.11 Wireless LAN System. IEICE Trans. Commun. 96-B(2): 419-429 (2013) - [j11]Naoki Honma, Kentaro Nishimori, Takefumi Hiraguri, Yoshitaka Tsunekawa:
Non-iterative Algorithm of MIMO Adaptive Array Based on Correlation Matrix Including Parasitic Antennas. IEICE Trans. Commun. 96-B(7): 1945-1952 (2013) - [j10]Takefumi Hiraguri, Kengo Nagata, Toshiyuki Ogawa, Takahiro Ueno, Kenya Jin'no, Kentaro Nishimori:
Queuing Scheme for Improved Downlink Throughput on WLANs. Wirel. Pers. Commun. 70(2): 985-1000 (2013) - 2011
- [j9]Masakatsu Ogawa, Takefumi Hiraguri, Kentaro Nishimori, Naoki Honma, Kazuhiro Takaya, Kazuo Murakawa:
Power Saving Control Method for Battery-Powered Portable Wireless LAN Access Points in an Overlapping BSS Environment. IEICE Trans. Commun. 94-B(3): 658-666 (2011) - [j8]Kentaro Nishimori, Takefumi Hiraguri, Masakatsu Ogawa, Naoki Honma:
Development of Multi Channel Ad-Hoc Network System. IEICE Trans. Commun. 94-B(3): 667-675 (2011) - [c6]Takefumi Hiraguri, Toshiyuki Ogawa, Takahiro Ueno, Kentaro Nishimori, Kenya Jin'no:
Transmission Queuing Schemes for Improving Downlink Throughput on IEEE 802.11 WLANs. ICCCN 2011: 1-5 - 2010
- [j7]Youhei Ohno, Tatsuya Shimizu, Takefumi Hiraguri, Masashi Nakatsugawa:
Frame Resource Allocation Schemes that Improve System Capacity and Latency Performance of Time-Division Duplex Multihop Relay Systems. IEICE Trans. Commun. 93-B(8): 2035-2042 (2010) - [j6]Akira Kishida, Takefumi Hiraguri, Masakatsu Ogawa, Kentaro Nishimori, Naoki Honma, Tetsu Sakata:
A Novel Interference Avoidance Technique on Mobile Wireless Routers Using IEEE802.11n PSMP. IEICE Trans. Commun. 93-B(8): 2053-2062 (2010) - [j5]Masakatsu Ogawa, Takefumi Hiraguri, Kentaro Nishimori, Kazuhiro Takaya, Kazuo Murakawa:
Transmission History Based Distributed Adaptive Contention Window Adjustment Algorithm Cooperating with Automatic Rate Fallback for Wireless LANs. IEICE Trans. Commun. 93-B(8): 2063-2072 (2010) - [j4]Naoki Honma, Kentaro Nishimori, Riichi Kudo, Yasushi Takatori, Takefumi Hiraguri, Masato Mizoguchi:
A Stochastic Approach to Design MIMO Antenna with Parasitic Elements Based on Propagation Characteristics. IEICE Trans. Commun. 93-B(10): 2578-2585 (2010)
2000 – 2009
- 2009
- [j3]Takefumi Hiraguri, Masakatsu Ogawa, Makoto Umeuchi, Tetsu Sakata:
Power Saving Scheme Suitable for Wireless LAN in Multimedia Communications. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 92-A(9): 2184-2190 (2009) - [j2]Masakatsu Ogawa, Takefumi Hiraguri:
Power Saving Control for Battery-Powered Portable WLAN APs. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 92-A(9): 2253-2256 (2009) - [c5]Akira Kishida, Takefumi Hiraguri, Masakatsu Ogawa:
A novel interference avoidance technique on MAC protocol for Wireless LAN-WIMAX relay. PIMRC 2009: 2710-2714 - [c4]Takefumi Hiraguri, Masakatsu Ogawa, Makoto Umeuchi, Tetsu Sakata:
Study of power saving scheme suitable for wireless LAN in multimedia communication. WCNC 2009: 1403-1408 - [c3]Youhei Ohno, Tatsuya Shimizu, Takefumi Hiraguri, Masashi Nakatsugawa:
Novel frame structures to improve system capacity and latency performance of a time-division duplex multihop relay wireless access system. WCNC 2009: 1854-1859 - 2008
- [j1]Takefumi Hiraguri, Takeo Ichikawa, Masataka Iizuka, Shuji Kubota:
Proposal of Wireless Traffic Control Schemes for Wireless LANs. IEICE Trans. Commun. 91-B(5): 1340-1348 (2008) - 2004
- [c2]Takefumi Hiraguri, Yasuhiko Inoue, Shuji Kubota:
Development of traffic control mechanisms for IEEE 802.11 wireless LANs without QoS support functionality. ISWCS 2004: 383-387 - 2002
- [c1]Takefumi Hiraguri, Takeo Ichikawa, Masataka Iizuka, Masahiro Morikura:
Novel multiple access protocol for voice over IP in wireless LAN. ISCC 2002: 517-523
Coauthor Index
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