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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 233  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2022-06-15
13:20
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Complexity-Reduced Channel Estimation Using Comb-Shaped Preamble for Random Access with Transmitter Filtering and Channel Identifier Linked Receiver Beamforming
Andrey Bolotov, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-31
 [more] RCS2022-31
pp.43-48
RCS 2022-06-15
13:30
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
HARQ Using Hierarchical Tree-Structured Random Access Channel Identifiers and Random Retransmission Time Back-Off in NOMA Based Random Access
Katsuya Yanai, Takanori Hara (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-32
 [more] RCS2022-32
pp.49-54
RCS 2022-06-15
13:40
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Repetition-Based NOMA-HARQ with Adaptive Termination for URLLC
Go Takita, Takanori Hara (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-33
 [more] RCS2022-33
pp.55-60
RCS 2022-06-15
14:05
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Peak Cancellation Signal Generation Considering Variance in Signal Power Among Transmitter Antennas in PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals
Jun Saito (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-34
 [more] RCS2022-34
pp.61-66
RCS 2022-06-15
14:15
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals at Multiple-Antenna AF Relay Station Based on Signal Processing at Base Station
Asuka Kakehashi (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-35
 [more] RCS2022-35
pp.67-72
RCS 2022-06-15
14:25
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Investigations on TRP Clustering Method in Downlink Cell-Free MIMO Using Layered Partially Non-orthogonal ZF-Based Beamforming
Daisuke Ishii, Takanori Hara (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-36
 [more] RCS2022-36
pp.73-78
RCS 2022-06-15
14:35
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Autonomous Decentralized User Association Method to Maximize Integrated System Throughput Considering Coexistence of Multiple Services
Kazuma Matsumoto, Takanori Hara (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-37
 [more] RCS2022-37
pp.79-84
RCS 2022-06-15
14:45
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Investigation of Distributed Probabilistic Control for Joint Optimization of Base Station Activation and Cell Range Expansion
Takehiro Ueda, Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-38
 [more] RCS2022-38
pp.85-90
RCS 2022-06-15
14:55
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Activation Control of Base Stations Based on Distributed DQN for Heterogeneous Networks
Daiki Kato (Tokyo Univ. of Science), Yuto Muroki, Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-39
 [more] RCS2022-39
pp.91-96
RCS 2021-10-22
15:00
Online Online [Poster Presentation] Investigation of NOMA-Based Highly-Efficient Low-Latency Random Access
Kenichi Higuchi (Tokyo Univ. of Science) RCS2021-139
In this paper, we introduce some of our recent studies on highly-efficient low-latency random access that realize multi-... [more] RCS2021-139
pp.112-119
RCS 2021-06-23
13:00
Online Online Efficient HARQ Method Using Hierarchically Structured Physical Channel Identifiers in NOMA-based Random Access for Multi-Packet Reception
Megumi Asada (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2021-36
This paper proposes an efficient hybrid automatic repeat request (HARQ) method achieving both the packet combining and r... [more] RCS2021-36
pp.43-48
RCS 2021-06-23
13:10
Online Online Investigation of Transmitter Filtering Method for Random Access with Channel Identifier Linked Receiver Beamforming
Shogo Uchida (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2021-37
This paper investigates a transmitter filtering (TF) method for random access using physical channel identifier (PCID)-l... [more] RCS2021-37
pp.49-55
RCS 2021-06-23
13:20
Online Online Investigation on Complexity Reduction in Peak Cancellation Signal-Based PAPR Reduction Method Using Null Space in MIMO Channel
Kenta Hosoi (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2021-38
In this paper, we propose an algorithm to further reduce the computational complexity of the peak-to-average power ratio... [more] RCS2021-38
pp.56-61
RCS 2021-06-23
13:30
Online Online Investigation of PAPR Reduction Using Null Space in MIMO Channel for MIMO-OFDM Signals in Multiple-Antenna AF Relay Transmission
Yuki Sekiguchi (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2021-39
In the 5th generation mobile communication system and beyond, the importance of relay transmission increases in order to... [more] RCS2021-39
pp.62-67
RCS 2021-06-23
13:40
Online Online Investigation of NOMA-based High-Efficient and Low-Latency HARQ Method for URLLC
Ryota Kobayashi (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science) RCS2021-40
Hybrid automatic repeat request (HARQ) is an essential technology to efficiently reduce the error rate. However, for ult... [more] RCS2021-40
pp.68-74
RCS, AP, UWT
(Joint)
2020-11-25
10:40
Online Online Superposition Coding-Based Non-orthogonal HARQ with Adaptive Power Allocation Using Multistage Decision
Hironobu Onaya, Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-112
This paper proposes a superposition coding-based non-orthogonal hybrid automatic repeat request (HARQ) method with adapt... [more] RCS2020-112
pp.13-16
RCS, AP, UWT
(Joint)
2020-11-25
11:20
Online Online Investigation of Preamble Design Appropriate for Random Access Achieving Multi-Packet Reception
Kou Watanuki, Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-113
Random access for multi-packet reception is considered to be an promising technology component for the 5th generation mo... [more] RCS2020-113
pp.17-23
RCS, AP, UWT
(Joint)
2020-11-25
14:20
Online Online Online Probabilistic Activation Control of Base Stations Utilizing Temporal System Throughput and Activation States of Neighbor Cells
Junya Tani, Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-117
In this paper, we propose an online probabilistic activation/deactivation control at base stations (BSs) based on the te... [more] RCS2020-117
pp.42-47
MICT, WBS 2020-07-21
14:50
Online Online Proposal of Non-invasive Blood Glucose Estimation Based on Bioelectromagnetic Response and Its Evaluation by Error Grid Analysis
Reo Takamatsu, Kenichi Higuchi, Dairoku Muramatsu (Tokyo Univ. of Science) WBS2020-5 MICT2020-4
Current blood glucose measurement requires invasive blood sampling from a patient. To reduce the patient's burden, we pr... [more] WBS2020-5 MICT2020-4
pp.19-24
RCS 2020-06-24
13:50
Online Online Investigation of Adaptive Transmission Rate Control Based on Machine Learning Using Only ACK/NAK Feedback
Takumi Endo, Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-25
This paper investigates an adaptive transmission rate control based on machine learning using only ACK/NAK feedback info... [more] RCS2020-25
pp.13-18
 Results 1 - 20 of 233  /  [Next]  
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