Masahiro Umehira

102 papers B 15C 10Misc 3Journal 31Unranked 43

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	A ConvMixer-based Inter-Radar Interference Mitigation Approach for automotive mmWave Radar. VTC2025-Fall Yudai Suzuki, Xiaoyan Wang, Masahiro Umehira, Hao Zhou
2025	Misc	`conf`	DFTs-OFDM Radar using Zadoff-Chu Sequence for Radar-Communication Integration. ICNC Masahiro Umehira, Yoshihiko Takeuchi
2025	Misc	`conf`	Inter-radar Interference Mitigation via Self-attention Augmented biGRU and Customized Loss Functions. ICNC Yudai Suzuki, Xiaoyan Wang, Masahiro Umehira, Hao Zhou
2025	—	`conf`	Interference Mitigation in Automotive mmWave Radar Systems Using a Complex-Valued ConvMixer. CommNet Yudai Suzuki, Xiaoyan Wang, Lin Shan, Masahiro Umehira
2025	—	`conf`	Novel Frequency Domain Signal Processing for DFTs-OFDM Radar using Zadoff-Chu Sequence. WPMC Masahiro Umehira, Yasushi Takatori
2024	J	`jnl`	Experimental Evaluations on Learning-Based Inter-Radar Wideband Interference Mitigation Method. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Ryoto Koizumi, Xiaoyan Wang, Masahiro Umehira, Ran Sun, Shigeki Takeda
2024	J	`jnl`	Wideband Interference Suppression for Automotive mmWave CS Radar: From Algorithm-Based to Learning-Based Approaches. IEICE Trans. Commun. Xiaoyan Wang, Ryoto Koizumi, Masahiro Umehira, Ran Sun, Shigeki Takeda
2023	—	`conf`	Deep Reinforcement Learning-Based On-Off Analog Beamforming Coordination for Downlink MISO Networks. DASC/PiCom/CBDCom/CyberSciTech Hang Zhou, Xiaoyan Wang, Masahiro Umehira, Yusheng Ji
2023	—	`conf`	Effect of Unmanned Aerial Vehicles for Electromagnetic Field Measurement on Near Field of High-frequency-Band Monopole Antennas. GCCE Koki Ito, Katsuyuki Fujii, Yasuyuki Okumura, Masahiro Umehira
2023	J	`jnl`	Green Spectrum Sharing Framework in B5G Era by Exploiting Crowdsensing. IEEE Trans. Green Commun. Netw. Xiaoyan Wang, Masahiro Umehira, Mina Akimoto, Biao Han, Hao Zhou
2023	—	`conf`	Multi-radar interference experiment and performance evaluations on algorithm-based and learning-based schemes. SoICT Ryoto Koizumi, Xiaoyan Wang, Masahiro Umehira
2023	C	`conf`	OTFS and Delay Doppler Communications. APCC Y. Hong, Masahiro Umehira
2023	—	`conf`	Orthogonal Subcarrier Division Multiplexing Using the Same Optical Wavelength. GCCE Yusuke Mizutani, Yasuyuki Okumura, Masahiro Umehira, Katsuyuki Fujii
2023	—	`conf`	Quantitative Analysis of Bubble Cross-Sectional Area and Electrical Constants in a Phantom Using Ultrasonic Vibration. GCCE Mizuho Kato, Katsuyuki Fujii, Yasuyuki Okumura, Masahiro Umehira
2023	—	`conf`	RNN-based Interference Suppression Method for CS radar: Simulation and Experimental Evaluations. ICAIIC Ryoto Koizumi, Xiaoyan Wang, Masahiro Umehira, Shigeki Takeda, Ran Sun
2023	C	`conf`	Radar-Communication Integration System based on PMCW Radar using Zadoff-Chu Sequence. APCC Masahiro Umehira, Katsuyuki Fujii, Yasuyuki Okumura
2023	—	`conf`	Split Learning Assisted Multi-UAV System for Image Classification Task. VTC2023-Spring Tingkai Sun, Xiaoyan Wang, Masahiro Umehira, Yusheng Ji
2022	—	`conf`	A Deep Reinforcement Learning based Analog Beamforming Approach in Downlink MISO Systems. VTC Spring Hang Zhou, Xiaoyan Wang, Masahiro Umehira, Yusheng Ji
2022	J	`jnl`	A Usage Aware Dynamic Spectrum Access Scheme for Interweave Cognitive Radio Network by Exploiting Deep Reinforcement Learning. Sensors Xiaoyan Wang, Yuto Teraki, Masahiro Umehira, Hao Zhou, Yusheng Ji
2022	—	`conf`	Deep reinforcement learning based secondary user transmit power control for underlay cognitive radio networks. RACS Kouhei Katou, Xiaoyan Wang, Masahiro Umehira, Yusheng Ji
2022	—	`conf`	Performance evaluation of antenna using the human body as an element. GCCE Ryoki Kanematsu, Katsuyuki Fujii, Yasuyuki Okumura, Masahiro Umehira
2022	—	`conf`	Prototype development of VR based personal zone defense practice equipment. LifeTech Hiroki Honma, Yoshiaki Iida, Yasuyuki Okumura, Katsuyuki Fujii, Masahiro Umehira
2021	—	`conf`	A Simplified DPD Linearizer using Operation Point Estimation Pilot Signals for Mobile Terminal Application in TDD Wireless Systems. WPMC Atsushi Masubuchi, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda
2021	J	`jnl`	Antenna Element Space Interference Cancelling Radar for Angle Estimations of Multiple Targets. IEEE Access Ran Sun, Junichirou Sakai, Kouhei Suzuki, Jiaying Zheng, Shigeki Takeda, Masahiro Umehira, Xiaoyan Wang, Hiroshi Kuroda
2021	—	`conf`	Deep Reinforcement Learning based Usage Aware Spectrum Access Scheme. WPMC Yuto Teraki, Xiaoyan Wang, Masahiro Umehira, Yusheng Ji
2021	—	`conf`	Effect of Air Bubbles Mixed in During Phantom Fabrication on Electrical Constants. GCCE Shingo Hayashi, Katsuyuki Fujii, Yasuyuki Okumura, Masahiro Umehira
2021	—	`conf`	Evaluation of 3D Virtualization Accuracy for VR-Based Personal Basketball Team-Practice System. GCCE Hiroki Honma, Yoshiaki Iida, Yasuyuki Okumura, Katsuyuki Fujii, Masahiro Umehira
2021	—	`conf`	FFT-based frequency domain filter design for multichannel overlap-windowed-DFTs-OFDM signals. VTC Spring Motoki Ishibashi, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda
2021	—	`conf`	Proto-type Development of Vibration-induced Haptic Shoes for Perceiving the Front Obstacle. GCCE Kosuke Nakagawa, Yasuyuki Okumura, Katsuyuki Fujii, Masahiro Umehira
2021	J	`jnl`	Reinforcement Learning for Joint Channel/Subframe Selection of LTE in the Unlicensed Spectrum. Wirel. Commun. Mob. Comput. Yuki Kishimoto, Xiaoyan Wang, Masahiro Umehira
2021	J	`jnl`	Wireless Access Control in Edge-Aided Disaster Response: A Deep Reinforcement Learning-Based Approach. IEEE Access Hang Zhou, Xiaoyan Wang, Masahiro Umehira, Xianfu Chen, Celimuge Wu, Yusheng Ji
2020	J	`jnl`	A Framework to Determine Secure Distances for Either Drones or Robots Based Inventory Management Systems. IEEE Access Budi Rahmadya, Ran Sun, Shigeki Takeda, Kenichi Kagoshima, Masahiro Umehira
2020	J	`jnl`	An Efficient Privacy Preserving Spectrum Sharing Framework for Internet of Things. IEEE Access Xiaoyan Wang, Masahiro Umehira, Biao Han, Hao Zhou, Peng Li, Celimuge Wu
2020	—	`conf`	DPD based HPA linearizer using in-band operation point estimation pilot for mobile device applications. ICSPCS Akira Tada, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda
2020	B	`conf`	Deep Reinforcement Learning based Access Control for Disaster Response Networks. GLOBECOM Hang Zhou, Xiaoyan Wang, Masahiro Umehira, Xianfu Chen, Celimuge Wu, Yusheng Ji
2020	—	`conf`	Reinforcement Learning based Joint Channel/Subframe Selection Scheme for Fair LTE-WiFi Coexistence. MSN Yuki Kishimoto, Xiaoyan Wang, Masahiro Umehira
2019	J	`jnl`	A Feasibility Study on the Safety Confirmation System Using NFC and UHF Band RFID Tags. IEICE Trans. Inf. Syst. Shigeki Takeda, Kenichi Kagoshima, Masahiro Umehira
2019	—	`conf`	An Overlap-Windowed-OQAM-DFTs-OFDM Scheme to Achieve Low PAPR and ACLP. ISWCS Mizuki Imai, Takuya Okamoto, Takahiro Okano, Masahiro Umehira, Xiaoyan Wang
2019	—	`conf`	Crowdsourced Radio Environment Mapping by Exploiting Machine Learning. WPMC Mina Akimoto, Xiaoyan Wang, Masahiro Umehira, Yusheng Ji
2019	—	`conf`	Numerical Link Outage Probability Assessment using Meteorological Data for THz-Band Outdoor Wireless Communication Systems. WPMC Yuki Hatahara, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda
2019	—	`conf`	Online Incentive Mechanism for Crowdsourced Radio Environment Map Construction. ICC Xiaoyan Wang, Masahiro Umehira, Biao Han, Peng Li, Yu Gu, Celimuge Wu
2018	—	`conf`	Energy Efficient Learning-Based 60GHz Band Coverage Prediction for Multi-Band WLAN. VTC Fall Xiaoyan Wang, Masahiro Umehira, Shigeki Takeda, Hiroyuki Otsu, Takyuya Kawatani
2018	J	`jnl`	Energy Efficient Learning-Based Indoor Multi-Band WLAN for Smart Buildings. IEEE Access Xiaoyan Wang, Masahiro Umehira, Hiroyuki Otsu, Takyuya Kawatani, Shigeki Takeda
2018	C	`conf`	Feasibility of HPA Linearization System using Amplitude Reference Pilot Signal. APCC Takuya Okamoto, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda
2018	—	`conf`	Overlap-Windowed-DFTs-OFDM with Overlap FFT Filter-Bank for Flexible Uplink Access in 5G and Beyond. VTC Fall Takahiro Okano, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda
2017	B	`conf`	Fine-Grained Incentive Mechanism for Sensing Augmented Spectrum Database. GLOBECOM Xiaoyan Wang, Masahiro Umehira, Peng Li, Yu Gu, Yusheng Ji
2017	C	`conf`	Incentivizing crowdsourcing for exclusion zone refinement in spectrum sharing system. APCC Xiaoyan Wang, Masahiro Umehira, Peng Li, Yu Gu, Yusheng Ji
2017	C	`conf`	Kriging-based RSSI prediction for cell coverage discovery using spectrum database in 5G multi-band cellular networks. APCC Yuto Ogawa, Masahiro Umehira, Xiaoyan Wang
2016	—	`conf`	A novel overlap FFT filter-bank using windowing and smoothing techniques to reduce adjacent channel interference for flexible spectrum access. ICTC Motohiro Tanabe, Akira Saito, Masahiro Umehira, Shigeki Takeda
2016	C	`conf`	Experimental evaluation of a spectrum occupancy rate measurement method based on LSE estimation of Gaussian noise CDF. APCC Masahiro Umehira, Shota Rachi, Shigeki Takeda
2016	J	`jnl`	Improving Performance by Countering Human Body Shadowing in 60GHz Band Wireless Systems by Using Two Transmit and Two Receive Antennas. IEICE Trans. Commun. Tomoaki Nagayama, Shigeki Takeda, Masahiro Umehira, Kenichi Kagoshima, Teruyuki Miyajima
2016	C	`conf`	Load modulation based MIMO communication for the low complexity and low power consumption. ICCE Changyoung An, Heung-Gyoon Ryu, Seung Hwan Lee, Masahiro Umehira, Tokumi Yokohira
2016	B	`conf`	Ultra-multi-amplitude-level BPSK based SSB-DFTs-OFDM to achieve higher spectrum efficiency. PIMRC Hirokazu Fusayasu, Shigeki Nihei, Masahiro Umehira, Jun-ichi Abe, Jun Mashino
2015	—	`conf`	A Modified DFTs-OFDM with DC Subcarrier Shift for Low PAPR and DC Offset Error Robustness. VTC Spring Shigeki Nihei, Masahiro Umehira, Shigeki Takeda
2015	C	`conf`	A twin cylinder model for moving human body shadowing in 60GHz WLAN. APCC Ting Wang, Masahiro Umehira, Hiroyuki Otsu, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima
2015	—	`conf`	Further evaluation of frequency cooperative ARQ scheme for multi-band WLAN. ISCIT Toshiyasu Motegi, Teruyuki Miyajima, Masahiro Umehira, Shigeki Takeda
2015	—	`conf`	Performance Evaluation of SSB Transmission of DFTs-OFDM Using Multi-Level BPSK through Nonlinear HPA. VTC Spring Masahiro Umehira, Shigeki Nihei, Hirokazu Fusayasu, Teruyuki Miyajima, Shigeki Takeda, Jun Mashino, Takatoshi Sugiyama
2014	—	`conf`	Dynamic channel assignment scheme with cooperative beam forming for multi-beam mobile satellite networks. WCSP Hang Li, Zhe Zhu, Zhen Gao, Jing Wang, Masahiro Umehira
2014	J	`jnl`	Feasibility of Guard Band Utilization for Cognitive Radio Using TV White Space. IEICE Trans. Commun. Noriyuki Yaginuma, Masahiro Umehira, Hiroshi Harada
2014	—	`conf`	Feasibility of RSSI based access network detection for multi-band WLAN using 2.4/5GHz and 60GHz. WPMC Masahiro Umehira, Gen Saito, Sho Wada, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima
2014	—	`conf`	Location-based centralized dynamic channel assignment with channel segregation for multi-beam mobile satellite networks. WCSP Masahiro Umehira, Sunao Fujita, Zhen Gou, Jing Wang
2013	C	`conf`	A novel spectrum sensing scheme using clock timing extraction based feature detection. APCC Kenta Sakurai, Masahiro Umehira, Shigeki Takeda
2013	C	`conf`	Dynamic channel assignment based on interference measurement with threshold for multi-beam mobile satellite networks. APCC Masahiro Umehira, Sunao Fujita, Zhen Gao, Jing Wang
2012	Misc	`conf`	A guard band aggregation scheme for cognitive radio using TV white space. ICCS Noriyuki Yaginuma, Masahiro Umehira, Ryuhei Funada, Hiroshi Harada
2012	—	`conf`	An Orthogonal Polarization Based MIMO Transmission for Advanced 60GHz WLAN. VTC Spring Masahiro Umehira, Toshiaki Sasame, Hirokazu Sawada
2012	J	`jnl`	Design and Performance of Overlap FFT Filter-Bank for Dynamic Spectrum Access Applications. IEICE Trans. Commun. Motohiro Tanabe, Masahiro Umehira
2011	—	`conf`	A new spectrum sensing scheme using overlap FFT filter-bank for dynamic spectrum access. CrownCom Takanori Sato, Masahiro Umehira
2010	—	`conf`	Impulse Response Model and Parameters for Indoor Channel Modeling at 60GHz. VTC Spring Hirokazu Sawada, Hiroyuki Nakase, Shuzo Kato, Masahiro Umehira, Katsuyoshi Sato, Hiroshi Harada
2009	J	`jnl`	A Novel Dynamic Channel Access Scheme Using Overlap FFT Filter-Bank for Cognitive Radio. IEICE Trans. Commun. Motohiro Tanabe, Masahiro Umehira, Koichi Ishihara, Yasushi Takatori
2009	B	`conf`	Polarization dependence in double directional propagation channel at 60GHz. PIMRC Hirokazu Sawada, Hiroyuki Nakase, Shuzo Kato, Masahiro Umehira, Katsuyoshi Sato, Hiroshi Harada
2009	J	`jnl`	Recent Japanese R&D in Satellite Communications. IEICE Trans. Commun. Masahiro Umehira, Kiyoshi Kobayashi, Yoshitsugu Yasui, Masato Tanaka, Ryutaro Suzuki, Hideyuki Shinonaga, Nobuyuki Kawai
2008	J	`jnl`	Wide area ubiquitous network: the network operator's view of a sensor network. IEEE Commun. Mag. Hiroshi Saito, Osamu Kagami, Masahiro Umehira, Yuichi Kado
2007	B	`conf`	A design of single carrier based PHY for IEEE 802.15.3c standard. PIMRC Ryuhei Funada, Hiroshi Harada, Yozo Shoji, Ryota Kimura, Yoshinori Nishiguchi, Ming Lei, Chang-Soon Choi, Fumihide Kojima, Chang Woo Pyo, Zhou Lan, Ismail Lakkis, Masahiro Umehira, Shuzo Kato
2007	—	`conf`	Concept and Feasibility Study of Wide Area Ubiquitous Network for Sensors and Actuators. VTC Spring Masahiro Umehira, Hiroshi Saito, Osamu Kagami, Takafumi Fujita, Yosuke Fujino
2005	J	`jnl`	IEEE 802.11 wireless LAN implemented on software defined radio with hybrid programmable architecture. IEEE Trans. Wirel. Commun. Takashi Shono, Yushi Shirato, Hiroyuki Shiba, Kazuhiro Uehara, Katsuhiko Araki, Masahiro Umehira
2005	J	`jnl`	Implementation and Performance Evaluation of Simple SDM-COFDM Prototype Using Propagation Coefficient Matrix Tracking for Fast Fading MIMO Channels. IEICE Trans. Commun. Takatoshi Sugiyama, Satoshi Kurosaki, Daisei Uchida, Yusuke Asai, Masahiro Umehira
2005	J	`jnl`	Interference Analysis from Impulse Radio UWB Systems Using Simple Signal Models. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Yasuo Suzuki, Ichihiko Toyoda, Masahiro Umehira
2005	B	`conf`	Packet multiplexing transmission technique in wireless ad-hoc networks. PIMRC Shoukei Kobayashi, Masayoshi Nakayama, Masahiro Umehira
2005	B	`conf`	Proposal of 5/25-GHz dual band OFDM-based wireless LAN for high-capacity broadband communications. PIMRC Ichihiko Toyoda, Fusao Nuno, Yoshitaka Shimizu, Masahiro Umehira
2004	B	`conf`	Development of SDM-COFDM prototype employing a hierarchical ICI canceller for MIMO-based broadband wireless access systems. WCNC Takatoshi Sugiyama, Satoshi Kurosaki, Yusuke Asai, Daisei Uchida, Masahiro Umehira
2004	B	`conf`	Performance evaluation of QoS control scheme that uses back pressure traffic control. PIMRC Fusao Nuno, Ichihiko Toyoda, Masahiro Umehira
2003	B	`conf`	Development of a novel SDM-COFDM prototype for broadband wireless access systems. WCNC Takatoshi Sugiyama, Satoshi Kurosaki, Yusuke Asai, Masahiro Umehira
2003	—	`conf`	Performance of IEEE 802.11 wireless LAN implemented on software defined radio with hybrid programmable architecture. ICC Takashi Shono, Hiroyuki Shiba, Yushi Shirato, Kazuhiro Uehara, Katsuhiko Araki, Masahiro Umehira
2002	B	`conf`	Design and performance evaluation of software defined radio prototype for PHS and IEEE 802.11 wireless LAN. PIMRC Kazuhiro Uehara, Hiroyuki Shiba, Takashi Shono, Yushi Shirato, Hiroshi Yoshioka, Masashi Nakatsugawa, Shuji Kubota, Masahiro Umehira
2002	J	`jnl`	OFDM/CDMA Technologies for Future Broadband Mobile Communication Systems. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Masahiro Umehira, Takatoshi Sugiyama
2002	—	`conf`	SDM-COFDM scheme using feed-forward inter-channel interference canceller for broadband mobile communications. VTC Spring Satoshi Kurosaki, Yusuke Asai, Takatoshi Sugiyama, Masahiro Umehira
2000	J	`jnl`	Satellite communication system integrated into terrestrial ISDN. IEEE Trans. Aerosp. Electron. Syst. Toru Otsu, Kazuhiro Nagayama, Akira Kurokawa, Hiroshi Nakashima, Masahiro Umehira
1999	J	`jnl`	Air interface access schemes for broadband mobile systems. IEEE Commun. Mag. Max Prögler, Cengiz Evci, Masahiro Umehira
1999	B	`conf`	Automatic repeat request schemes for high-speed wireless access systems with constraint of finite control channel capacity. WCNC Masafumi Yoshioka, Atsushi Ohta, Yoichi Matsumoto, Masahiro Umehira
1999	J	`jnl`	Prototype AWA: design and implementation of a high speed ATM wireless access system using 25 GHz band. Comput. Networks Toshihiro Manabe, Takatoshi Sugiyama, Atsushi Ohta, Fusao Nuno, Hiroyuki Suzuki, Shuta Uwano, Satoru Aikawa, Masahiro Umehira
1999	B	`conf`	Wireless and IP integrated system architectures for broadband mobile multimedia services. WCNC Masahiro Umehira, Masamitsu Nakura, Makoto Umeuchi, Junichi Murayama, Takaaki Murai, Hiroyuki Hara
1997	J	`jnl`	Error correction and error detection techniques for wireless ATM systems. Wirel. Networks Satoru Aikawa, Yasushi Motoyama, Masahiro Umehira
1997	J	`jnl`	Wireless communications in the twenty-first century: a perspective. Proc. IEEE Mansoor Shafi, Akira Hashimoto, Masahiro Umehira, Shigeaki Ogose, Takehiro Murase
1996	J	`jnl`	A Proposal of an ATM Wireless Access System for Tetherless Multimedia Services. Mob. Networks Appl. Masahiro Umehira, Akira Hashimoto, Hideaki Matsue, Masamitsu Nakura
1996	B	`conf`	A network architecture of ATM wireless access with mobility support. PIMRC Masamitsu Nakura, Yasushi Motoyama, Fusao Nuno, Masahiro Umehira
1996	B	`conf`	A novel buffer control scheme for ATM cell transport with improved cell delay variation for wireless ATM. PIMRC Hijin Sato, Masahiro Umehira
1996	J	`jnl`	ATM wireless access for mobile multimedia: concept and architecture. IEEE Wirel. Commun. Masahiro Umehira, Masamitsu Nakura, Hijin Sato, Akira Hashimoto
1992	J	`jnl`	A New Satellite Communication System Integrated into Public Switched Networks. - DYANET. IEEE J. Sel. Areas Commun. Masahumi Ohnuki, Masahiro Umehira, Hiroshi Nakashima, Shuzo Kato
1992	J	`jnl`	A TDMA Satellite Communication System for ISDN Services. IEEE J. Sel. Areas Commun. Shuzo Kato, Masahiro Morikura, Shuji Kubota, Hiroshi Kazama, Kiyoshi Enomoto, Masahiro Umehira
1990	J	`jnl`	Application of Advanced Microelectronics to Large-Scale Communication Equipment - Compact and Maintenance-Free TDMA Equipment. IEEE J. Sel. Areas Commun. Shuzo Kato, Masahiro Morikura, Masahiro Umehira, Kiyoshi Enomoto, Shuji Kubota
1986	—	`conf`	General Purpose TDMA LSI Development for Low Cost Earth Station. ICC Shuzo Kato, Masahiro Morikura, Masahiro Umehira, Kiyoshi Enomoto, Shuji Kubota
1986	—	`conf`	Low C/N Modem for Satellite TDMA Network Use. ICC Tokihiro Miyo, Mitsuru Seta, Shuzo Kato, Masahiro Umehira