Hiraku Okada

ORCID

Publication Activity (10 Years)

Years Active: 1996-2024
Publications (10 Years): 60

Top Venues

CCNC

IEICE Trans. Commun.

IECON

IEICE Trans. Fundam. Electron. Commun. Comput. Sci.

Publications

Shion Kawabe, Hiraku Okada, Chedlia Ben Naila, Masaaki Katayama
An Experimental Evaluation of Air-to-Air MIMO Transmission in Wireless LAN Relay Systems Using Drones. ICOIN (2024)
Daiki Ishikawa, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama
Performance Analysis of LDPC Coded Outdoor Long-Distance Imaging MIMO System. ICNC (2024)
Takumi Ishida, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama
Performance of Intelligent Reflecting Surface Based-FSO Link Under Strong Turbulence and Spatial Jitter. ISCC (2023)
Kansuke Kumazawa, Hiraku Okada, Munehiro Matsui, Koyo Tategami, Daisuke Goto, Kiyohiko Itokawa, Fumihiro Yamashita, Masaaki Katayama
Transmission Control Considering Different Available Channels for CRDSA/IRSA in Satellite IoT Systems. IEEE Access 11 (2023)
Hiroyuki Asano, Hiraku Okada, Chedlia Ben Naila, Masaaki Katayama
Communication-Aware Flight Algorithms for UAV-Based Delay-Tolerant Networks. IEICE Trans. Commun. 106 (11) (2023)
Meiyuan Miao, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama
Design and Analysis of a Multi-Rate Multiple-Access Differential Chaos Shift Keying System. IEICE Trans. Commun. 106 (10) (2023)
Fumiharu Sasaki, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama
Robust Video Transmission for Robot Teleoperation Over Networks with Packet Loss. IECON (2023)
Hitoshi Ando, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama
Mitigation of Vessel Motion Effects for MIMO Underwater Optical Wireless Communication System using Spatial Coding. ICC Workshops (2023)
Hiroyuki Asano, Hiraku Okada, Chedlia Ben Naila, Masaaki Katayama
Communication-Aware Flight Algorithm for UAVs in Delay-Tolerant Aerial Networks. CCNC (2023)
Yosuke Takagi, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama
Interpolation of Missing Data for Wireless Operation of Industrial Robot. IECON (2023)
Xuejuan Zhu, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama
High Speed Optical Wireless Uplink using Multiuser MIMO with Angle Diversity. PIMRC (2023)
Takumi Ishida, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama
Performance Analysis of Intelligent Reflecting Surface Assisted-FSO System over Turbulent Channels with Pointing Errors. VTC2023-Spring (2023)
Ruiyi Huang, Masayuki Kinoshita, Takaya Yamazato, Hiraku Okada, Koji Kamakura, Shintaro Arai, Tomohiro Yendo, Toshiaki Fujii
Simultaneous Visible Light Communication and Ranging Using High-Speed Stereo Cameras Based on Bicubic Interpolation Considering Multi-Level Pulse-Width Modulation. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 106 (7) (2023)
Hiraku Okada, Taiga Hayashi, Kentaro Kobayashi, Tadahiro Wada, Chedlia Ben Naila, Masaaki Katayama
Visible Light Communication Systems Using a High-speed Display and Rolling-shutter Camera. APCC (2023)
Tekkan Okuda, Hiraku Okada, Chedlia Ben Naila, Masaaki Katayama
Experimental Evaluation of 920 MHz Band Air-to-Ground Radio Wave Propagation in Mountainous Areas. IEICE Trans. Commun. 106 (10) (2023)
Taiga Kasukabe, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama
Spatial Diversity for Mitigating Near-far Problem in Wireless Optical CDMA Systems. PIMRC (2022)
Hiroyuki Asano, Hiraku Okada, Chedlia Ben Naila, Masaaki Katayama
A UAV Flight Method for Non-Uniform User Distributions in Aerial Wireless Relay Networks. CCNC (2022)
Tekkan Okuda, Hiraku Okada, Hiroki Tanaka, Toshihiro Fujiwara, Nobuo Matsui, Chedlia Ben Naila, Masaaki Katayama
Propagation Characteristics of 920 MHz band LPWA for Inspections of Power Transmission Lines Using UAVs. CCNC (2022)
Hiroyuki Asano, Hiraku Okada, Chedlia Ben Naila, Masaaki Katayama
Voronoi-Based UAV Flight Method for Non-Uniform User Distribution in Delay-Tolerant Aerial Networks. IEICE Trans. Commun. (11) (2022)
Kenzo Yamada, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama
Design and Evaluation of Optimum Receiver for Turbulent Underwater Optical Wireless Channel. VTC Spring (2022)
Ruiyi Huang, Takaya Yamazato, Masayuki Kinoshita, Hiraku Okada, Koji Kamakura, Shintaro Arai, Tomohiro Yendo, Toshiaki Fujii
Vehicle Distance Measurement based on Visible Light Communication Using Stereo Cameras. IV (2021)
Hiroyuki Asano, Hiraku Okada, Chedlia Ben Naila, Masaaki Katayama
Flight Model Using Voronoi Tessellation for a Delay-Tolerant Wireless Relay Network Using Drones. IEEE Access 9 (2021)
Hiroki Tanaka, Nobuo Matsui, Yuta Watanabe, Hiraku Okada, Masaaki Katayama
Experimental Evaluation of a Wireless LAN Relay System Using Unmanned Aerial Vehicles. VTC Spring (2021)
Hiraku Okada
An Overview of Aerial Wireless Relay Networks for Emergency Communications during Large-Scale Disasters. IEICE Trans. Commun. (12) (2020)
Ruiyi Huang, Masayuki Kinoshita, Takaya Yamazato, Hiraku Okada, Koji Kamakura, Shintaro Arai, Tomohiro Yendo, Toshiaki Fujii
Performance Evaluation of Range Estimation for Image Sensor Communication Using Phase-only Correlation. GLOBECOM (Workshops) (2020)
Tomoya Arisue, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Masayuki Kinoshita, Koji Kamakura, Shintaro Arai, Tomohiro Yendo
BER Measurement for Transmission Pattern Design of ITS Image Sensor Communication Using DMD Projector. CCNC (2020)
Akifumi Iwasa, Chedlia B. E. N. Naila, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Experimental Evaluation of an Indoor Long Distance High Speed Imaging MIMO System. GLOBECOM (2020)
Hayato Ishikawa, Eiji Okamoto, Hiraku Okada, Satoshi Makido
Performance improvement of V2I uplink transmission on far vehicles using frequency scheduling-based cooperative V2V relay transmission. CCNC (2020)
Hiraku Okada, Jyo Suzuki, Hiroki Yanai, Kentaro Kobayashi, Masaaki Katayama
Inclination of Flying Drones in Aerial Wireless Relay Networks. VTC Fall (2019)
Kohei Kasai, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Cross-layer combination of predictive control and error correction coding for wireless feedback control. APWCS (2019)
Hiraku Okada
Foreword. IEICE Trans. Commun. (4) (2019)
Hayato Ishikawa, Eiji Okamoto, Shouhei Okamoto, Hiraku Okada, Satoshi Makido
Performance Analysis of Uplink V2I Cooperative Transmission Scheme in Practical Road Environments. ICOIN (2019)
Masayuki Kinoshita, Koji Kamakura, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Shintaro Arai, Tomohiro Yendo
Stereo Ranging Method Using LED Transmitter for Visible Light Communication. GLOBECOM (2019)
Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Guaranteed Time Slot Allocation for IEEE 802.15.4-Based Wireless Feedback Control Systems. IEEE Access 7 (2019)
Shuto Ito, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Optical Wireless CDMA Receiver with Hard Limiters and Successive Interference Cancellers. ICC Workshops (2019)
Taito Sasaki, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Data signal modulation scheme based on perceptually uniform color space for image sensor-based visible light communication. APWCS (2019)
Mitsuru Hasegawa, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Synchronous CDMA for a PLC-based multi-machine control system. IECON (2019)
Ryota Mushu, Tadahiro Wada, Kaiji Mukumoto, Hiraku Okada
A Proposal of Information Embedding Scheme Based on Discrete Cosine Transform in Parallel Transmission Visible Light Communications. GCCE (2018)
Tomoya Moribe, Hiraku Okada, Kentaro Kobayashi, Masaaki Katayama
Combination of a wireless sensor network and drone using infrared thermometers for smart agriculture. CCNC (2018)
Satoshi Kamegawa, Masayuki Kinoshita, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Koji Kamakura, Tomohiro Yendo, Shintaro Arai
Performance Evaluation of Precoded Pulse Width Modulation for Image Sensor Communication. GLOBECOM Workshops (2018)
Hiroki Yanai, Hiraku Okada, Kentaro Kobayashi, Masaaki Katayama
Flight Schemes Considering Breaks for Wireless Relay Networks Using Drones during Large-Scale Disasters. VTC Fall (2018)
Masayuki Kinoshita, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Shintaro Arai, Tomohiro Yendo, Koji Kamakura
Simplified Vehicle Vibration Modeling for Image Sensor Communication. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2018)
Masayuki Kinoshita, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Shintaro Arai, Tomohiro Yendo, Koji Kamakura
A Comparison of Reception Methods for Visible Light Communication Using High-Speed Stereo Cameras. GLOBECOM (2018)
Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A Cross-Layer Optimized Receiver Design for Wireless Feedback Control Systems. IEEE Trans. Commun. 66 (1) (2018)
Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A cross-layer design of optimized receiver for wireless state feedback control. SPAWC (2017)
Eiji Okamoto, Hiraku Okada, Yoshinao Ishii, Satoshi Makido
Performance Improvement of Low-Latency V2I Uplink Using Superposed Cooperative V2V Transmission. VTC Fall (2017)
Yufeng Lin, Tadahiro Wada, Kaiji Mukumoto, Hiraku Okada
Performance evaluation of information embedding schemes based on wavelet transform for parallel transmission visible light communication systems. GCCE (2017)
Hiraku Okada, Shuhei Suzaki, Tatsuya Kato, Kentaro Kobayashi, Masaaki Katayama
Link Quality Information Sharing by Compressed Sensing and Compressed Transmission for Arbitrary Topology Wireless Mesh Networks. IEICE Trans. Commun. (3) (2017)
Yushi Uematsu, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A Study on Multiple Access Schemes for Wireless Control over the IEEE 802.15.4 Beacon-Enabled Mode. WCNC (2017)
Yosuke Miwa, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A Study on Variable Length Channel Coding for State Feedback in Wireless Control Systems. WCNC (2017)
Shun Sawada, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Selective transmission of control information based on channel periodicity in PLC-based multiple-machine control. ISPLC (2017)
Masayuki Kinoshita, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Shintaro Arai, Tomohiro Yendo, Koji Kamakura
Modeling and parameter estimation of vehicle vibration inducing transmitter displacement in ITS image sensor communication. ICC Workshops (2017)
Takashi Ogura, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
H-Infinity Control Design Considering Packet Loss as a Disturbance for Networked Control Systems. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2) (2017)
Takaya Yamazato, Naoaki Kawagita, Hiraku Okada, Toshiaki Fujii, Tomohiro Yendo, Shintaro Arai, Koji Kamakura
The Uplink Visible Light Communication Beacon System for Universal Traffic Management. IEEE Access 5 (2017)
Sho Sato, Hiraku Okada, Kentaro Kobayashi, Takaya Yamazato, Masaaki Katayama
Visible light communication systems using blue color difference modulation for digital signage. PIMRC (2016)
Shota Kimura, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A study on time division multiple access scheme based on predicted tracking error for wireless feedback control of multiple plants. IECON (2016)
Takaya Yamazato, A. Ohmura, Hiraku Okada, Toshiaki Fujii, Tomohiro Yendo, Shintaro Arai, Koji Kamakura
Range estimation scheme for integrated I2V-VLC using a high-speed image sensor. ICC Workshops (2016)
Takashi Ogura, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A study on h-infinity controller design considering the influence of packet loss as a disturbance. IECON (2016)
Takazumi Asai, Tomohiro Yendo, Shintaro Arai, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Koji Kamakura
Position estimation of LED matrix in image sensor communication. APSIPA (2016)
Atsushi Nagata, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A study on a source coding scheme considering the importance of control data for wireless feedback control systems. IECON (2016)
Cesar Carrizo, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Predictive Control for Performance Improvement of a Feedback Control System Using Cyclostationary Channels. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (4) (2015)
Chinthaka Premachandra, Tomohiro Yendo, Mehrdad Panahpour Tehrani, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Masayuki Tanimoto
Outdoor Road-to-Vehicle Visible Light Communication Using On-Vehicle High-Speed Camera. Int. J. Intell. Transp. Syst. Res. 13 (1) (2015)
Shingo Hattori, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
On- Off Error Control Coding Scheme for Minimizing Tracking Error in Wireless Feedback Control Systems. IEEE Trans. Ind. Informatics 11 (6) (2015)
Atsushi Mori, Hiraku Okada, Kentaro Kobayashi, Masaaki Katayama, Kenichi Mase
Construction of a node-combined wireless network for large-scale disasters. CCNC (2015)
Yoshihiro Minematsu, Hiraku Okada, Kentaro Kobayashi, Masaaki Katayama
An analyzing method using self-organizing map for MIMO mesh networks. APCC (2015)
Takaya Yamazato, Masayuki Kinoshita, Shintaro Arai, Eisho Souke, Tomohiro Yendo, Toshiaki Fujii, Koji Kamakura, Hiraku Okada
Vehicle Motion and Pixel Illumination Modeling for Image Sensor Based Visible Light Communication. IEEE J. Sel. Areas Commun. 33 (9) (2015)
Hironori Kusumoto, Hiraku Okada, Kentaro Kobayashi, Masaaki Katayama
Area Transmission Efficiency of Single-User and Multi-User MIMO in Grid-Topology Wireless Mesh Networks. VTC Spring (2015)
Kenichi Mase, Hiraku Okada
Message communication system using unmanned aerial vehicles under large-scale disaster environments. PIMRC (2015)
Naoya Ishitani, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Cooperative repeaters to improve data collection in low power generation for solar-powered wireless sensor networks. CCNC (2015)
Yuki Ohira, Shintaro Arai, Tomohiro Yendo, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Koji Kamakura
Novel Demodulation Scheme Based on Blurred Images for Image-Sensor-Based Visible Light Communication. GLOBECOM Workshops (2015)
Yohsuke Ishikawa, Hiraku Okada, Katsuhiro Naito, Kentaro Kobayashi, Masaaki Katayama
Experimental Evaluation of a Distributed Sensor Network Applying Source Node Grouping. CANDAR (2015)
Takazumi Asai, Daigo Iwase, Ryoko Ieki, Tomohiro Yendo, Shintaro Arai, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Koji Kamakura
Intensity estimation of LEDs from spatially and temporally mixed images in image sensor communication. APSIPA (2015)
Jun Naganawa, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Spectrum Sharing Overlay System with a Repeater for the Primary Signal. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (7) (2014)
Yuki Goto, Isamu Takai, Takaya Yamazato, Hiraku Okada, Akitoshi Fujii, Shoji Kawahito, Shintaro Arai, Tomohiro Yendo, Koji Kamakura
BER characteristic of optical-OFDM using OCI. APCCAS (2014)
Daigo Iwase, Makoto Kasai, Tomohiro Yendo, Shintaro Arai, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii
Improving communication rate of visible light communication system using high-speed camera. APCCAS (2014)
Masayuki Kinoshita, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Shintaro Arai, Tomohiro Yendo, Koji Kamakura
Motion modeling of mobile transmitter for image sensor based I2V-VLC, V2I-VLC, and V2V-VLC. GLOBECOM Workshops (2014)
Takaya Yamazato, Isamu Takai, Hiraku Okada, Toshiaki Fujii, Tomohiro Yendo, Shintaro Arai, Michinori Andoh, Tomohisa Harada, Keita Yasutomi, Keiichiro Kagawa, Shoji Kawahito
Image-sensor-based visible light communication for automotive applications. IEEE Commun. Mag. 52 (7) (2014)
Masayuki Kinoshita, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Shintaro Arai, Tomohiro Yendo, Koji Kamakura
Channel fluctuation measurement for image sensor based I2V-VLC, V2I-VLC, and V2V-VLC. APCCAS (2014)
Shuhei Suzaki, Hiraku Okada, Kentaro Kobayashi, Masaaki Katayama
An information sharing method using compressed sensing in wireless distributed networks. GLOBECOM Workshops (2014)
Xiaohui Fan, Hiraku Okada, Kentaro Kobayashi, Masaaki Katayama
Mutual Information Evaluation and Optimization of Intermittent Transmission Methods in Energy Harvesting Wireless Sensor Networks. IEICE Trans. Commun. (9) (2014)
Shintaro Arai, Yasutaka Shiraki, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Tomohiro Yendo
Multiple LED arrays acquisition for image-sensor-based I2V-VLC using block matching. CCNC (2014)
Tatsuya Kasashima, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Tomohiro Yendo, Shintaro Arai
Interpixel interference cancellation method for road-to-vehicle visible light communication. WiVeC (2013)
Cesar Carrizo, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Feedback control scheme with prediction for power line communication channels. SmartGridComm (2013)
Atsushi Tanaka, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A study on the reduction of synchronization error using a relay of predictive control information in wireless control of multiple plants. SII (2013)
Shingo Hattori, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A note on adaptive coding scheme for improvement of reference tracking in wireless feedback control systems. IECON (2013)
Yuki Sugao, Hiraku Okada, Kentaro Kobayashi, Masaaki Katayama
A study on network and multi-route coding for information advertisement in wireless mesh networks. PIMRC (2013)
Hiraku Okada, Shinnosuke Misawa, Takaya Yamazato, Toshiaki Fujii, Tomohiro Yendo
Channel information estimation for error correcting code in road-to-vehicle visible light communication systems. WiVeC (2013)
Takanori Ito, Tomohiro Yendo, Shintaro Arai, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii
Intensity estimation method of LED array for visible light communication. Video Surveillance and Transportation Imaging Applications (2013)
Shingo Hattori, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A note on adaptive coding scheme for minimizing tracking error in wireless feedback control systems. SII (2013)
Shingo Hattori, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
A note on adaptive coding scheme based on control quality for wireless feedback control systems. ETFA (2013)
Ryota Mizutani, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Impact of the Reduction of Transmitted Information on the Control Quality in a Wireless Feedback Control System. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (5) (2013)
Hiraku Okada, Hironori Oka, Kenichi Mase
Network construction management for emergency communication system SKYMESH in large scale disaster. GLOBECOM Workshops (2012)
Zheng Huang, Hiraku Okada, Masaaki Katayama, Takaya Yamazato
A Study on Cluster Partitioning with Cooperative MISO Scheme in Wireless Sensor Networks. Int. J. Distributed Sens. Networks 8 (2012)
Sayaka Nishimoto, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Tomohiro Yendo, Shintaro Arai
High-speed transmission of overlay coding for road-to-vehicle visible light communication using LED array and high-speed camera. GLOBECOM Workshops (2012)
Zheng Huang, Hiraku Okada, Kentaro Kobayashi, Masaaki Katayama
A study on cluster lifetime in multi-hop wireless sensor networks with cooperative MISO scheme. J. Commun. Networks 14 (4) (2012)
Hironori Kusumoto, Hiraku Okada, Kentaro Kobayashi, Masaaki Katayama
Performance comparison between Single-User MIMO and Multi-User MIMO in wireless mesh networks. WPMC (2012)
Cesar Carrizo, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Control Quality of a Feedback Control System under Cyclostationary Noise in Power Line Communication. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (4) (2012)
Hiraku Okada, T. Ishizaki, Takaya Yamazato, Tomohiro Yendo, Toshiaki Fujii
Erasure coding for road-to-vehicle visible light communication systems. CCNC (2011)
Hiraku Okada, Hiroya Hiramuki, Kenichi Mase
An ARQ Scheme Using NACK for Network Coding in Wireless Multihop Networks. ISADS (2011)
Halpage Chinthaka Nuwandika Premachandra, Tomohiro Yendo, Mehrdad Panahpour Tehrani, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Masayuki Tanimoto
LED Traffic Light Detection Using High-speed-camera Image Processing for Visible Light Communication. Inf. Media Technol. 6 (3) (2011)

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Publication Activity (10 Years)

Top Topics

Top Venues

Hiraku Okada