Takefumi Hiraguri

60 papers B 7C 2Misc 1Journal 33Unranked 17
YearRankTypeTitle / Venue / Authors
2025 J jnl
RGB Color Space-Enhanced Training Data Generation for Cucumber Classification.
J. Imaging
Hotaka Hoshino, Takuya Shindo, Takefumi Hiraguri, Nobuhiko Itoh
2024 — conf
AI camera development sutitable for tomato harvest timing estimation.
ICCE-Taiwan
Yasuhiro Okabe, Takefumi Hiraguri, Keita Endo, Hiroyuki Shimizu, Tomotaka Kimura, Naoki Yamada
2024 — conf
Evaluation of handover schemes and switching between different communication systems by drone radio stations.
ICCE-Taiwan
Koyo Aoyama, Takefumi Hiraguri, Kakeru Hirata, Takahiro Matsuda, Tomotaka Kimura
2024 J jnl
Time Division Wireless Power Transfer Using Receiver Grouping.
IEEE Access
Yuna Sawada, Shino Shiraki, Takahiro Matsuda, Takefumi Hiraguri, Kazuki Maruta, Tomotaka Kimura
2023 — conf
Adaptive Antenna Selection for Two-Hop Full-Duplex UAV Relay Networks.
ICCE-Taiwan
Takumu Uda, Takahiro Matsuda, Takefumi Hiraguri
2023 — conf
Agricultural Field Monitoring System Using DTN-based Drone Networks.
ICCE-Taiwan
Kota Hatajiri, Tomotaka Kimura, Takefumi Hiraguri, Jun Cheng
2023 J jnl
Autonomous Drone-Based Pollination System Using AI Classifier to Replace Bees for Greenhouse Tomato Cultivation.
IEEE Access
Takefumi Hiraguri, Hiroyuki Shimizu, Tomotaka Kimura, Takahiro Matsuda, Kazuki Maruta, Yoshihiro Takemura, Takeshi Ohya, Takuma Takanashi
2023 — conf
Directional beam antenna control in response to drone tilts.
ICCE-Taiwan
Chikayo Hata, Takefumi Hiraguri, Takahiro Matsuda, Tetsuro Imai, Jiro Hirokawa
2023 — conf
Drone Flight Experiment using RTK Positioning for Pear Pollination.
ICCE-Taiwan
Naoki Yamada, Takefumi Hiraguri, Hiroyuki Shimizu, Tomotaka Kimura, Tomohito Shimada, Akane Shibasaki, Yoshihiro Takemura
2023 — conf
Performance Improvement of Maximum Likelihood Wave Source Localization with LOS/NLOS Identification.
ICCE-Taiwan
Takayuki Mori, Shinichi Murata, Takahiro Matsuda, Takefumi Hiraguri
2023 C conf
TDM Scheduling Based on Receiver Grouping for Indoor Wireless Power Transfer.
APCC
Yuna Sawada, Shino Shiraki, Takahiro Matsuda, Takefumi Hiraguri, Kazuki Maruta, Tomotaka Kimura
2022 J jnl
Fast-Converging Constant Modulus Algorithm with Variable Step Size for Multibeam Massive MIMO.
IEICE Trans. Commun.
Kentaro Nishimori, Kazuki Maruta, Takefumi Hiraguri, Hidehisa Shiomi
2022 — conf
Semantic Segmentation Based Field Detection Using Drones.
ICCE-TW
Keita Endo, Tomotaka Kimura, Nobuhiko Itoh, Takefumi Hiraguri
2021 — conf
Study of flower image classification using deep learning to support agricultural pollination.
ICCE-TW
Eisuke Fukuyama, Tomotaka Kimura, Nobuhiko Itoh, Takefumi Hiraguri
2021 J jnl
Traffic Reduction Technologies and Data Aggregation Control to Minimize Latency in IoT Systems.
IEICE Trans. Commun.
Hideaki Yoshino, Kenko Ota, Takefumi Hiraguri
2020 J jnl
A Cooperative Transmission Scheme in Drone-Based Networks.
IEEE Trans. Veh. Technol.
Takefumi Hiraguri, Kentaro Nishimori, Isamu Shitara, Tsutomu Mitsui, Takuya Shindo, Tomotaka Kimura, Takahiro Matsuda, Hideaki Yoshino
2020 — conf
A Study on Quality of Experience with Scalable Video Coding Transmission Rate Control in Wireless LAN Multicast Environments with Background Traffic.
ICCE-TW
Hiroshi Iida, Isamu Shitara, Hideaki Yoshino, Takahiro Matsuda, Takefumi Hiraguri
2020 J jnl
Adaptive Direction Control for UAV Full-Duplex Relay Networks Using Multiple Directional Antennas.
IEEE Access
Takahiro Matsuda, Megumi Kaneko, Takefumi Hiraguri, Kentaro Nishimori, Tomotaka Kimura, Akihiro Nakao
2020 — conf
Improving QoE Fairness Using the IEEE 802.11e Priority Control Mechanism.
ICCE-TW
Kosuke Shikama, Takahiro Matsuda, Takefumi Hiraguri, Takanori Hayashi, Ryo Yamamoto
2020 J jnl
Novel Unmanned Aerial Vehicle-Based Line-of-Sight MIMO Configuration Independent of Transmitted Distance Using Millimeter Wave.
IEEE Access
Naoki Matsumura, Kentaro Nishimori, Ryotaro Taniguchi, Takefumi Hiraguri, Takashi Tomura, Jiro Hirokawa
2019 Misc conf
Adaptive Control of Nonstatistical Sensor Data Aggregation to Minimize Latency in IoT Gateways.
ITNAC
Hideaki Yoshino, Kenko Ota, Takefumi Hiraguri
2019 — conf
Blind Adaptive Array by Constant Modulus with Variable Step Size for Multi-beam Massive MIMO.
WSA
Kentaro Nishimori, Kazuki Maruta, Takefumi Hiraguri
2019 B conf
Optimal Parameters of Nonstatistical Sensor Data Aggregation Minimizing Latency in IoT Gateway.
GLOBECOM
Hideaki Yoshino, Kenko Ota, Takefumi Hiraguri
2018 — conf
Adaptive Beam-Frequency Allocation Algorithm with Position Uncertainty for Millimeter-Wave MIMO Systems.
VTC Spring
Rafail Ismayilov, Megumi Kaneko, Takefumi Hiraguri, Kentaro Nishimori
2018 — conf
Adaptive Control of Statistical Data Aggregation to Minimize Latency in IoT Gateway.
GIIS
Hideaki Yoshino, Kenko Ota, Takefumi Hiraguri
2018 J jnl
Effect of User Antenna Selection on Block Beamforming Algorithms for Suppressing Inter-User Interference in Multiuser MIMO System.
IEICE Trans. Commun.
Nobuyoshi Kikuma, Kentaro Nishimori, Takefumi Hiraguri
2018 J jnl
Multi-Beam Massive MIMO with Beam-Selection Using Only Amplitude Information in Uplink Channel.
IEICE Trans. Commun.
Fumiya Muramatsu, Kentaro Nishimori, Ryotaro Taniguchi, Takefumi Hiraguri
2018 J jnl
Novel Access Control Scheme with Collision Detection Utilizing MIMO Transmission Procedure in WLAN Systems.
IEICE Trans. Commun.
Takefumi Hiraguri, Kentaro Nishimori, Yoshiaki Morino, Mamoru Ugajin, Hideaki Yoshino
2018 J jnl
Queueing Delay Analysis and Optimization of Statistical Data Aggregation and Transmission Systems.
IEICE Trans. Commun.
Hideaki Yoshino, Kenko Ota, Takefumi Hiraguri
2017 J jnl
Adaptive Beam-Frequency Allocation Algorithm with Position Uncertainty for Millimeter-Wave MIMO Systems.
CoRR
Rafail Ismayilov, Megumi Kaneko, Takefumi Hiraguri, Kentaro Nishimori
2017 J jnl
An (
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Mamoru Ugajin, Takuya Shindo, Tsuneo Tsukahara, Takefumi Hiraguri
2017 — conf
Proposal of overhead-less access control scheme for multi-beam massive MIMO transmission in WLAN systems.
Med-Hoc-Net
Yoshiaki Morino, Takefumi Hiraguri, Hideaki Yoshino, Kentaro Nishimori
2016 J jnl
A Novel Collision Avoidance Scheme Using Optimized Contention Window in Dense Wireless LAN Environments.
IEICE Trans. Commun.
Yoshiaki Morino, Takefumi Hiraguri, Hideaki Yoshino, Kentaro Nishimori, Takahiro Matsuda
2016 J jnl
FFT-Based Block Diagonalization at User Terminal for Implicit Beamforming in Multiuser MIMO System.
IEICE Trans. Commun.
Hayate Kimoto, Kentaro Nishimori, Takefumi Hiraguri, Hideo Makino
2015 J jnl
Survey of Transmission Methods and Efficiency Using MIMO Technologies for Wireless LAN Systems.
IEICE Trans. Commun.
Takefumi Hiraguri, Kentaro Nishimori
2014 J jnl
Analog Decoding Method for Simplified Short-Range MIMO Transmission.
IEICE Trans. Commun.
Ryochi Kataoka, Kentaro Nishimori, Takefumi Hiraguri, Naoki Honma, Tomohiro Seki, Ken Hiraga, Hideo Makino
2014 B conf
Analysis evaluation of collision detection scheme utilizing MIMO transmission.
WiMob
Yoshiaki Morino, Takefumi Hiraguri, Toshiyuki Ogawa, Hideaki Yoshino, Kentaro Nishimori
2014 B conf
Canonical deterministic particle swarm optimization to sustain global search.
SMC
Kenya Jin'no, Takuya Shindo, Takuya Kurihara, Takefumi Hiraguri, Hideaki Yoshino
2014 J jnl
Effective Method for Wind and Solar Power Grid Systems Based on Recurrent Neural Networks.
J. Adv. Comput. Intell. Intell. Informatics
Keisuke Kimura, Takayuki Kimura, Takefumi Hiraguri, Kenya Jin'no
2014 J jnl
Multicast Transmission Access Control Methods for Various Wireless LAN Applications.
IEICE Trans. Commun.
Toshiyuki Ogawa, Takefumi Hiraguri, Kentaro Nishimori, Hideaki Yoshino, Kenya Jin'no
2014 J jnl
Transmission Rate by User Antenna Selection for Block Diagonalization Based Multiuser MIMO System.
IEICE Trans. Commun.
Kentaro Nishimori, Takefumi Hiraguri, Hideo Makino
2014 — conf
Virtualization-capable multichannel WiFi system with a coordinated downlink transmission technique.
CSNDSP
Yozo Shoji, Takefumi Hiraguri
2013 J jnl
Non-iterative Algorithm of MIMO Adaptive Array Based on Correlation Matrix Including Parasitic Antennas.
IEICE Trans. Commun.
Naoki Honma, Kentaro Nishimori, Takefumi Hiraguri, Yoshitaka Tsunekawa
2013 J jnl
Queuing Scheme for Improved Downlink Throughput on WLANs.
Wirel. Pers. Commun.
Takefumi Hiraguri, Kengo Nagata, Toshiyuki Ogawa, Takahiro Ueno, Kenya Jin'no, Kentaro Nishimori
2013 J jnl
User-Oriented QoS Control Method Based on CSMA/CA for IEEE802.11 Wireless LAN System.
IEICE Trans. Commun.
Akira Kishida, Masashi Iwabuchi, Toshiyuki Shintaku, Tetsu Sakata, Takefumi Hiraguri, Kentaro Nishimori
2011 J jnl
Development of Multi Channel Ad-Hoc Network System.
IEICE Trans. Commun.
Kentaro Nishimori, Takefumi Hiraguri, Masakatsu Ogawa, Naoki Honma
2011 J jnl
Power Saving Control Method for Battery-Powered Portable Wireless LAN Access Points in an Overlapping BSS Environment.
IEICE Trans. Commun.
Masakatsu Ogawa, Takefumi Hiraguri, Kentaro Nishimori, Naoki Honma, Kazuhiro Takaya, Kazuo Murakawa
2011 B conf
Transmission Queuing Schemes for Improving Downlink Throughput on IEEE 802.11 WLANs.
ICCCN
Takefumi Hiraguri, Toshiyuki Ogawa, Takahiro Ueno, Kentaro Nishimori, Kenya Jin'no
2010 J jnl
A Novel Interference Avoidance Technique on Mobile Wireless Routers Using IEEE802.11n PSMP.
IEICE Trans. Commun.
Akira Kishida, Takefumi Hiraguri, Masakatsu Ogawa, Kentaro Nishimori, Naoki Honma, Tetsu Sakata
2010 J jnl
A Stochastic Approach to Design MIMO Antenna with Parasitic Elements Based on Propagation Characteristics.
IEICE Trans. Commun.
Naoki Honma, Kentaro Nishimori, Riichi Kudo, Yasushi Takatori, Takefumi Hiraguri, Masato Mizoguchi
2010 J jnl
Frame Resource Allocation Schemes that Improve System Capacity and Latency Performance of Time-Division Duplex Multihop Relay Systems.
IEICE Trans. Commun.
Youhei Ohno, Tatsuya Shimizu, Takefumi Hiraguri, Masashi Nakatsugawa
2010 J jnl
Transmission History Based Distributed Adaptive Contention Window Adjustment Algorithm Cooperating with Automatic Rate Fallback for Wireless LANs.
IEICE Trans. Commun.
Masakatsu Ogawa, Takefumi Hiraguri, Kentaro Nishimori, Kazuhiro Takaya, Kazuo Murakawa
2009 B conf
A novel interference avoidance technique on MAC protocol for Wireless LAN-WIMAX relay.
PIMRC
Akira Kishida, Takefumi Hiraguri, Masakatsu Ogawa
2009 B conf
Novel frame structures to improve system capacity and latency performance of a time-division duplex multihop relay wireless access system.
WCNC
Youhei Ohno, Tatsuya Shimizu, Takefumi Hiraguri, Masashi Nakatsugawa
2009 J jnl
Power Saving Control for Battery-Powered Portable WLAN APs.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masakatsu Ogawa, Takefumi Hiraguri
2009 J jnl
Power Saving Scheme Suitable for Wireless LAN in Multimedia Communications.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Takefumi Hiraguri, Masakatsu Ogawa, Makoto Umeuchi, Tetsu Sakata
2009 B conf
Study of power saving scheme suitable for wireless LAN in multimedia communication.
WCNC
Takefumi Hiraguri, Masakatsu Ogawa, Makoto Umeuchi, Tetsu Sakata
2008 J jnl
Proposal of Wireless Traffic Control Schemes for Wireless LANs.
IEICE Trans. Commun.
Takefumi Hiraguri, Takeo Ichikawa, Masataka Iizuka, Shuji Kubota
2004 — conf
Development of traffic control mechanisms for IEEE 802.11 wireless LANs without QoS support functionality.
ISWCS
Takefumi Hiraguri, Yasuhiko Inoue, Shuji Kubota
2002 C conf
Novel multiple access protocol for voice over IP in wireless LAN.
ISCC
Takefumi Hiraguri, Takeo Ichikawa, Masataka Iizuka, Masahiro Morikura