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Mai Ohta
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2020 – today
- 2024
- [j22]Osamu Takyu, Keita Takeda, Ryuji Miyamoto, Koichi Adachi, Mai Ohta, Takeo Fujii:
An Environment-Aware Adaptive Data-Gathering Method for Packet-Level Index Modulation in LPWA. Sensors 24(8): 2514 (2024) - [j21]Kosuke Suzuki, Koichi Adachi, Mai Ohta, Osamu Takyu, Takeo Fujii:
Packet-Level Index Modulation Based on Channel Activity Detection. IEEE Trans. Wirel. Commun. 23(4): 2812-2823 (2024) - [j20]Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii:
Adaptive Resource Allocation Utilizing Periodic Traffic and Clock Drift in LPWAN. IEEE Trans. Wirel. Commun. 23(4): 3795-3807 (2024) - [c62]Toshi Ito, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi:
Characterization of Discrimination of Number of Signal Collision Sensors Using Spectral Fluctuation Caused by Frequency Offset in Physical Wireless Parameter Conversion Sensor Networks. ICAIIC 2024: 297-300 - [c61]Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii:
LBT-Based Resource Allocation Methods Utilizing Periodicity of Traffic in LPWAN. ICNC 2024: 1109-1113 - [c60]Takahiro Saraya, Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Takeo Fujii, Mai Ohta:
Received Signal Aided Implicit Node Clustering in LPWAN. VTC Spring 2024: 1-5 - 2023
- [j19]Masafumi Oda, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi:
Position Estimation of Radio Source Based on Fingerprinting With Physical Wireless Parameter Conversion Sensor Networks. IEEE Access 11: 12843-12857 (2023) - [j18]Ryuji Miyamoto, Osamu Takyu, Hiroshi Fujiwara, Koichi Adachi, Mai Ohta, Takeo Fujii:
Data Gathering Method with High Accuracy of Environment Recognition Using Mathematical Optimization in Packet-Level Index Modulation. IEICE Trans. Commun. 106(12): 1337-1349 (2023) - [j17]Toshi Ito, Masafumi Oda, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi:
Three Level Recognition Based on the Average of the Phase Differences in Physical Wireless Parameter Conversion Sensor Networks and Its Effect to Localization with RSSI. Sensors 23(6): 3308 (2023) - [c59]Takashi Imanaka, Mai Ohta, Makoto Taromaru:
Channel Access Control Instead of Random Backoff Algorithm. ICAIIC 2023: 128-132 - [c58]Hitoshi Yamasaki, Hiroki Matsuura, Mai Ohta, Makoto Taromaru:
Frame Design for Differential Packet-Level Index Modulation implemented by LoRaWAN. ICUFN 2023: 168-172 - [c57]Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii:
Resource Allocation for Periodic Traffic in Wireless Sensor Network. WCNC 2023: 1-6 - [c56]Ryogo Oya, Shinichiro Kakuda, Takeo Fujii, Osamu Takyu, Mai Ohta, Koichi Adachi:
Packet-Level Index Modulation Under Duty Cycle Constraints. WPMC 2023: 1-6 - 2022
- [j16]Kohei Tsurumi, Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii:
Simple Clock Drift Estimation and Compensation for Packet-Level Index Modulation and Its Implementation in LoRaWAN. IEEE Internet Things J. 9(16): 15089-15099 (2022) - [j15]Osamu Takyu, Gaku Kobayashi, Koichi Adachi, Mai Ohta, Takeo Fujii:
Estimation Based on Chirp Modulation for Desired and Interference Power and Channel Occupancy Ratio in LoRa. Sensors 22(11): 4140 (2022) - [j14]Kosuke Suzuki, Koichi Adachi, Mai Ohta, Osamu Takyu, Takeo Fujii:
Flexible Index Mapping Scheme for Packet-Level Index Modulation. IEEE Wirel. Commun. Lett. 11(4): 703-706 (2022) - [c55]Mai Ohta, Takeo Fujii:
Differential Packet Level Index Modulation for Low Power Wide Area System. ICUFN 2022: 38-42 - [c54]Ryuji Miyamoto, Osamu Takyu, Hiroshi Fujiwara, Koichi Adachi, Mai Ohta, Takeo Fujii:
Performance Evaluation of Highly Efficient Information Collection Methods by Trend Analysis of Sensor Information Using Pre-learning. ICUFN 2022: 55-60 - [c53]Toshi Ito, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi:
High-Sensitivity Detection Method for Signals in PhyC-SN. ICUFN 2022: 61-66 - 2021
- [j13]Koichi Adachi, Kohei Tsurumi, Aoto Kaburaki, Osamu Takyu, Mai Ohta, Takeo Fujii:
Packet-Level Index Modulation for LoRaWAN. IEEE Access 9: 12601-12610 (2021) - [j12]Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii:
Autonomous Decentralized Traffic Control Using Q-Learning in LPWAN. IEEE Access 9: 93651-93661 (2021) - [j11]Yuki Nishio, Osamu Takyu, Hayato Soya, Keiichiro Shirai, Mai Ohta, Takeo Fujii:
Optimal Construction of Access Rate to Superior Channel in Rendezvous Channel Based on Channel-Occupancy Ratio. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 104-A(1): 243-252 (2021) - [c52]Mai Ohta, Takeo Fujii:
Intra-System Interference Avoidance for Packet-Level Index Modulation in Internet of Things. APSIPA ASC 2021: 1958-1962 - [c51]Kohei Natsume, Mai Ohta, Koichi Adachi, Osamu Takyu, Takeo Fujii:
DCT Compression Scheme for Wireless Sensor Information considering Spatial Correlation. ICOIN 2021: 192-196 - [c50]Gaku Kobayashi, Osamu Takyu, Koichi Adachi, Mai Ohta, Takeo Fujii:
Proposal of interference power occupancy estimation method using chirp demodulation. ICUFN 2021: 187-191 - [c49]Shinichiro Kakuda, Yudai Yamazaki, Keita Katagiri, Takeo Fujii, Osamu Takyu, Mai Ohta, Koichi Adachi:
Channel Allocation for LoRaWanConsidering Intra-System and Inter-System Interferences. VTC Fall 2021: 1-7 - [c48]Muying Chen, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii:
Transmission Timing Control Using ACK Signal in LoRaWAN. WCNC 2021: 1-6 - 2020
- [c47]Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii:
Autonomous Decentralized Transmission Timing Control in Wireless Sensor Network. APSIPA 2020: 1460-1465 - [c46]Hirotaka Senda, Osamu Takyu, Akinori Kamio, Mai Ohta, Takeo Fujii:
Specification of Link Quality Degradation in WLAN based on MCS and Retransmission Flag. APSIPA 2020: 1497-1501 - [c45]Gaku Kobayashi, Osamu Takyu, Koichi Adachi, Mai Ohta, Takeo Fujii:
Estimation of Desired power and Undesired power Using Chirp Demodulation and Evaluation of Accuracy. APSIPA 2020: 1513-1518 - [c44]Mai Ohta, Masaki Amano, Makoto Taromaru:
Spectrum Sharing for Internet of Things System in Periodic Transmission. APSIPA 2020: 1523-1526 - [c43]Masaki Amano, Mai Ohta, Makoto Taromaru:
Transmission Timing Adjustment Algorithm in IoT System Equipped with Low-cost Oscillator with Low Frequency Stability. ICAIIC 2020: 60-63 - [c42]Kohei Natsume, Mai Ohta, Osamu Takyu, Takeo Fujii:
Data Fusion Method Exploiting Data Correlation for Physical Wireless Parameter Conversion Sensor Networks. ICOIN 2020: 390-395 - [c41]Toshiki Nonaka, Takeo Fujii, Osamu Takyu, Mai Ohta:
Adapting the number of replicas in the E-IRSA system using the power control. ICOIN 2020: 787-792
2010 – 2019
- 2019
- [j10]Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta:
Adaptive Channel Assignment With Predictions of Sensor Results and Channel Occupancy Ratio in PhyC-SN. IEEE Access 7: 44645-44658 (2019) - [j9]Naoki Aihara, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii:
Q-Learning Aided Resource Allocation and Environment Recognition in LoRaWAN With CSMA/CA. IEEE Access 7: 152126-152137 (2019) - [j8]Osamu Takyu, Keiichiro Shirai, Mai Ohta, Takeo Fujii:
ID Insertion and Data Tracking with Frequency Offset for Physical Wireless Parameter Conversion Sensor Networks. Sensors 19(4): 767 (2019) - [c40]Akinori Kamio, Fumihito Sasamori, Shiro Handa, Osamu Takyu, Mai Ohta, Takeo Fujii:
Recognition and Countermeasure to Hidden Terminal Problem by Packet Analysis in Wireless LAN. APSIPA 2019: 1463-1467 - [c39]Toshiki Nonaka, Takeo Fujii, Osamu Takyu, Mai Ohta:
Network MIMO with Interference Cancellation for Cloud-Cooperated Wireless Sensor Networks. ICOIN 2019: 210-215 - [c38]Shuhei Yamasaki, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Shiro Handa:
Data Separation Considering Smoothness of Sensing Data in Physical Wireless Parameter Conversion Sensor Networks. ICOIN 2019: 421-423 - [c37]Yudai Yamazaki, Takeo Fujii, Osamu Takyu, Mai Ohta, Koichi Adachi:
Spectrum Sharing Exploiting Spectrum Database for LPWA. ICUFN 2019: 60-65 - [c36]Yuki Nishio, Osamu Takyu, Hayato Soya, Mai Ohta, Takeo Fujii:
Optimal Channel Selection Rate of Slave Terminal for Rendezvous Channel Scheme based on Channel Occupancy Rate. ICUFN 2019: 72-75 - [c35]Masaki Amano, Mai Ohta, Makoto Taromaru:
Transmission Timing Control Method for IoT Devices Equipped with Poor Oscillator. ICUFN 2019: 132-136 - [c34]Kyosuke Fukuda, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Sliiro Handa:
Adaptive Transmission Control with Prediction of Sensing Results for PhyC-SN. RWS 2019: 1-4 - 2018
- [j7]Hayato Soya, Osamu Takyu, Keiichiro Shirai, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa:
Fast Rendezvous Scheme with a Few Control Signals for Multi-Channel Cognitive Radio. IEICE Trans. Commun. 101-B(7): 1589-1601 (2018) - [c33]Shuhei Yamasaki, Minato Oriuchi, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Shiro Handa:
A Signal Separation Method for Physical Wireless Parameter Conversion Sensor Networks Using K-Shortest Path. APSIPA 2018: 165-170 - [c32]Hironori Godo, Osamu Takyu, Koichi Adachi, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa:
Experimental Evaluation of Interference Robustness for Frequency Spectrum Sharing in WLAN Systems. APSIPA 2018: 171-176 - [c31]Haruki Fujita, Mai Ohta:
A Study on Radio Signal Identification Method for Spectrum Sharing. APSIPA 2018: 790-793 - [c30]Hayato Soya, Osamu Takyu, Keiichiro Shirai, Fumihito Sasamori, Shiro Handa, Mai Ohta, Takeo Fujii:
Modified rendezvous scheme with inferring access channel probability of slave by master. ICOIN 2018: 229-234 - [c29]Ryo Kurosawa, Osamu Takyu, Fumihito Sasamori, Shiro Handa, Mai Ohta, Takeo Fujii:
Experimental study of signaling with IFDMA modulation and nonlinear amplifying for recovering access channel mismatch. ICOIN 2018: 787-790 - [c28]Mai Ohta, Koichi Adachi, Naoki Aihara, Osamu Takyu, Takeo Fujii, Makoto Taromaru:
Measurement Experiments on 920 MHz Band for Spectrum Sharing with LoRaWAN. VTC Fall 2018: 1-5 - [c27]Osamu Takyu, Shohei Fujii, Fumihito Sasamori, Shiro Handa, Mai Ohta, Takeo Fujii:
Channel assignment based on predictions of sensing result and channel occupancy rate in PhyC-SN. WCNC 2018: 1-6 - [c26]Kyosuke Fukuda, Osamu Takyu, Keiichiro Shirai, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa:
Transmit control and data separation in physical wireless parameter conversion sensor networks with event driven sensors. WiSNet 2018: 12-14 - 2017
- [j6]Koji Kakinuma, Mai Ohta, Osamu Takyu, Takeo Fujii:
Fusion Center Controlled MAC Protocol for Physical Wireless Parameter Conversion Sensor Networks (PHY-C SN). IEICE Trans. Commun. 100-B(7): 1105-1114 (2017) - [j5]Osamu Takyu, Shohei Fujii, Youhei Akimoto, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa:
Optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering and long life system. Int. J. Distributed Sens. Networks 13(12) (2017) - [c25]Toshiyuki Shizuoka, Osamu Takyu, Mai Ohta, Takeo Fujii:
Multiband hierarchical ad hoc network with wireless environment recognition. APSIPA 2017: 1464-1469 - [c24]Takumi Kimura, Osamu Takyu, Fumihito Sasamori, Shiro Handa, Takeo Fujii, Mai Ohta:
Optimization of multi-channel access in learning assisted measurement of channel occupancy ratio by USRP. ICOIN 2017: 92-96 - [c23]Mai Ohta, Makoto Taromaru, Takeo Fujii, Osamu Takyu:
Spectrum edge decision method for energy detection with FFT. ICOIN 2017: 271-276 - [c22]Shohei Fujii, Osamu Takyu, Fumihito Sasamori, Shiro Handa, Takeo Fujii, Mai Ohta:
Optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering. ICOIN 2017: 303-308 - [c21]Koji Kakinuma, Takeo Fujii, Osamu Takyu, Mai Ohta:
Multiple information collection with frequency offset compensation by utilizing physical wireless parameter conversion sensor network (PHY-C SN). ICUFN 2017: 255-260 - [c20]Mai Ohta, Osamu Takyu, Takeo Fujii, Makoto Taromaru:
Robust channel selection method under home electronics-derived electromagnetic wave interference. ICUFN 2017: 967-969 - [c19]Ryo Kurosawa, Osamu Takyu, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa:
Control Signal Transmission Based on IFDMA and Receiver with Nonlinear Amplifier for Compensating Access Channel Mismatch. VTC Fall 2017: 1-5 - [c18]Takehiro Sakai, Osamu Takyu, Keiichiro Shirai, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa:
Data Tracking Using Frequency Offset and SIC for Physical Wireless Conversion Sensor Networks. WCNC Workshops 2017: 1-6 - [c17]Hayato Soya, Osamu Takyu, Keiichiro Shirai, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa:
Measurement Technique for Occupancy Ratio and Transition Ratio in Cognitive Radio System. WCNC Workshops 2017: 1-6 - 2016
- [c16]Minato Oriuchi, Osamu Takyu, Keiichiro Shirai, Fumihito Sasamori, Shiro Handa, Mai Ohta, Takeo Fujii:
Fundamental study of decomposition based on heterogeneous sensing data in physical conversion sensor networks. APSIPA 2016: 1-4 - [c15]Takeo Fujii, Shunsuke Takegi, Taiki Nakayama, Mai Ohta, Osamu Takyu:
Highly efficient environment aware wireless sensor network. CCNC 2016: 256-257 - [c14]Minato Oriuchi, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Shiro Handa:
Multi-target tracking based on features of sensing results and wireless parameters for physical wireless parameter conversion sensor networks. RWS 2016: 230-233 - [c13]Mai Ohta, Osamu Takyu, Takeo Fujii, Makoto Taromaru:
Novel two-stage spectrum sensing for energy detection with FFT. WCNC 2016: 1-5 - [c12]Minato Oriuchi, Osamu Takyu, Keiichiro Shirai, Fumihito Sasamori, Shiro Handa, Takeo Fujii, Mai Ohta:
Performance evaluation of multi-target tracking for PhyC-SN. WCNC 2016: 1-4 - [c11]Mai Ohta, Osamu Takyu, Takeo Fujii, Makoto Taromaru:
Novel two-stage spectrum sensing for energy detection with FFT. WCNC Workshops 2016: 346-350 - [c10]Minato Oriuchi, Osamu Takyu, Keiichiro Shirai, Fumihito Sasamori, Shiro Handa, Takeo Fujii, Mai Ohta:
Performance evaluation of multi-target tracking for PhyC-SN. WCNC Workshops 2016: 351-354 - 2015
- [j4]Osamu Takyu, Takayuki Yamakita, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Shiro Handa:
Optimization of Learning Time for Learning-Assisted Rendezvous Channel in Cognitive Radio System. IEICE Trans. Commun. 98-B(2): 360-369 (2015) - [j3]Ryo Myoenzono, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Shiro Handa:
Data Tracking and Effect of Frequency Offset to Simultaneous Collecting Method for Wireless Sensor Networks. Int. J. Distributed Sens. Networks 11: 946760:1-946760:10 (2015) - [c9]Shohei Fujii, Osamu Takyu, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Shiro Handa:
Selection method of cluster head in wireless sensor networks of wireless physical conversion for spectrum sharing. ICTC 2015: 430-434 - [c8]Kensaku Tamayama, Mai Ohta, Makoto Taromaru:
Signal bandwidth estimation with energy detector based on windowed FFT for cognitive radio system. ICTC 2015: 435-437 - [c7]Ryota Nakanishi, Mai Ohta, Makoto Taromaru:
Spectrum sensing and channel utilization prediction by Nth-order markov chain model. WCNC Workshops 2015: 182-187 - 2014
- [c6]Ryo Myoenzono, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Sliiro Handa:
Data tracking and effect of frequency offset to simultaneous collecting method for wireless sensor networks. ICTC 2014: 34-38 - 2012
- [j2]Mai Ohta, Takeo Fujii, Kazushi Muraoka, Masayuki Ariyoshi:
Cooperative Sensing with Distributed Pre-Detection for Gathering Sensing Information on Shared Primary Spectrum. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 95-A(11): 1980-1990 (2012) - [c5]Mai Ohta, Takamasa Kimura, Hasan Rajib Imam, Sean Rocke, Jingkai Su, Alexander M. Wyglinski, Takeo Fujii:
Channel Selection Statistics for Control Information Sharing within Cognitive Radio Networks. VTC Fall 2012: 1-5 - 2011
- [c4]Mai Ohta, Takeo Fujii, Kazushi Muraoka, Masayuki Ariyoshi:
A novel power controlled sensing information gathering for cooperative sensing on shared spectrum with primary spectrum. CrownCom 2011: 111-115 - [c3]Onur Altintas, Mitsuhiro Nishibori, Takuro Oshida, Chikara Yoshimura, Youhei Fujii, Kota Nishida, Yutaka Ihara, Masahiro Saito, Kazuya Tsukamoto, Masato Tsuru, Yuji Oie, Rama Vuyyuru, AbdulRahman Al-Abbasi, Masaaki Ohtake, Mai Ohta, Takeo Fujii, Si Chen, Srikanth Pagadarai, Alexander M. Wyglinski:
Demonstration of Vehicle to Vehicle Communications over TV White Space. VTC Fall 2011: 1-3 - 2010
- [c2]Hung Vu Le, Mai Ohta, Kei Inage, Takeo Fujii, Kazushi Muraoka, Masayuki Ariyoshi:
Outlier detection methods of low SNR nodes for cooperative spectrum sensing. ISWCS 2010: 966-970
2000 – 2009
- 2009
- [j1]Mai Ohta, Takeo Fujii, Kazushi Muraoka, Masayuki Ariyoshi:
A Novel Method for Information Gathering by Using Orthogonal Narrowband Signal for Cooperative Sensing in Cognitive Radio. IEICE Trans. Commun. 92-B(12): 3625-3634 (2009) - [c1]Mai Ohta, Takeo Fujii, Kazushi Muraoka, Masayuki Ariyoshi:
A cooperative sensing area expansion using orthogonal frequency based information collection method. CrownCom 2009: 1-6
Coauthor Index
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