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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 259  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
IN, RCS, NV
(Joint)
2024-05-31
15:05
Fukuoka Fukuoka University [Encouragement Talk] NOMA-Based Highly-Efficient Low-Latency HARQ Method with Inter-Base Station Cooperation for URLLC
Kenichi Higuchi, Ryota Kobayashi, Takanori Hara (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic Holdings)
 [more]
RCS 2024-04-26
10:20
Hiroshima
(Primary: On-site, Secondary: Online)
Beam Selection Based on Expanded Angle-Domain Beam Grouping for Massive MIMO Analog Beamforming Using NOMA in Cellular Downlink
Nobuhide Nonaka, Kenichi Higuchi (Tokyo Univ. of Science)
 [more]
SIP, IT, RCS 2024-01-19
14:55
Miyagi
(Primary: On-site, Secondary: Online)
Performance of the Joint PAPR Reduction Method Using Null Space in Channel for MIMO-OFDM Signals and Predistortion Techniques in Multiple-Antenna AF-type Relay Transmission
Asuka Kakehashi, Kenichi Higuchi (Tokyo Univ. of Science) IT2023-69 SIP2023-102 RCS2023-244
The combination of the peak-to-average power ratio (PAPR) reduction and predistortion (PD) technique removes the nonline... [more] IT2023-69 SIP2023-102 RCS2023-244
pp.211-216
AP, RCS
(Joint)
2023-11-15
10:00
Kumamoto Kumamoto Prefectural Workers' Welfare Hall
(Primary: On-site, Secondary: Online)
Peak Cancellation Signal-Based Parallel PAPR Reducton Method Using Low-Dimensional Null Space in Massive MIMO-OFDM Transmission
Jun Saito, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-151
 [more] RCS2023-151
pp.1-6
AP, RCS
(Joint)
2023-11-15
10:25
Kumamoto Kumamoto Prefectural Workers' Welfare Hall
(Primary: On-site, Secondary: Online)
Beam Selection Based on Angle-Domain Beam Grouping for Massive MIMO Analog Beamforming Using NOMA in Cellular Downlink
Nobuhide Nonaka, Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-152
In this paper, we introduce non-orthogonal multiple access (NOMA) into the massive multiple-input multiple-output (MIMO)... [more] RCS2023-152
pp.7-12
RCS 2023-10-20
15:40
Kagawa Kagawa University (Saiwai-cho Campus), and online
(Primary: On-site, Secondary: Online)
Investigations on Low-Complexity User-Specific TRP Selection Method in Downlink Distributed MIMO with Channel Estimation Errors
Hiroki Kato, Takanori Hara, Kenichi Higuchi (TUS) RCS2023-149
In this paper, we propose a computationally-efficient method for user equipment (UE)-specific transmission reception poi... [more] RCS2023-149
pp.96-101
SeMI, RCS, RCC, NS, SR
(Joint)
2023-07-12
10:00
Osaka Osaka University Nakanoshima Center + Online
(Primary: On-site, Secondary: Online)
Scalable Clustering Method in Downlink Cell-Free MIMO Using Layered Partially Non-orthogonal ZF-Based Beamforming
Daisuke Ishii, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-79
In this paper, we investigate a method for clustering UE-specific transmission TRPs in downlink cell-free multi-input mu... [more] RCS2023-79
pp.1-6
SeMI, RCS, RCC, NS, SR
(Joint)
2023-07-13
09:50
Osaka Osaka University Nakanoshima Center + Online
(Primary: On-site, Secondary: Online)
Compressed Sensing-Based Active User Detection for Random Access with Transmitter Filtering and Channel Identifier Linked Receiver Beamforming
Hiroki Fujimoto, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-87
This paper investigates compressed sensing-based active user detection methods for random access using transmitter filt... [more] RCS2023-87
pp.39-44
SeMI, RCS, RCC, NS, SR
(Joint)
2023-07-13
10:15
Osaka Osaka University Nakanoshima Center + Online
(Primary: On-site, Secondary: Online)
NOMA-HARQ with Adaptive Termination Based on Early Decision Using Channel State Information for URLLC
Go Takita, Takanori Hara (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-88
This paper extends our previously reported a repetition-based low-latency non-orthogonal multiple access (NOMA)- hybrid ... [more] RCS2023-88
pp.45-50
SeMI, RCS, RCC, NS, SR
(Joint)
2023-07-13
13:00
Osaka Osaka University Nakanoshima Center + 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 Considering Direct Link
Asuka Kakehashi (Tokyo Univ. of Science), Satoshi Suyama, Satoshi Nagata (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-91
In this study, assuming downlink amplify-and-forward (AF)-type relaying of multiple-input multiple-output (MIMO)-orthogo... [more] RCS2023-91
pp.58-63
SeMI, RCS, RCC, NS, SR
(Joint)
2023-07-13
13:25
Osaka Osaka University Nakanoshima Center + Online
(Primary: On-site, Secondary: Online)
Peak Cancellation Signal-Based PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals under Frequency-Selective Fading Channel
Jun Saito, Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-92
In this paper, we propose a parallel peak cancellation (PC) method in the peak-to-average power ratio (PAPR) reduction u... [more] RCS2023-92
pp.64-69
RCS 2023-06-15
10:10
Hokkaido Hokkaido University, and online
(Primary: On-site, Secondary: Online)
Investigation of PAPR Reduction Method Using Null Space in MIMO Channel for Massive MIMO-OFDM Signals with Uniform Planar Array
Soma Taguchi (Tokyo Univ. of Science), Satoshi Suyama, Satoshi Nagata (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-51
In this paper, we consider the application of our previously reported PCCNC (peak cancellation with channel-null constra... [more] RCS2023-51
pp.135-140
RCS 2023-06-15
10:30
Hokkaido Hokkaido University, and online
(Primary: On-site, Secondary: Online)
PAPR Reduction Method Utilizing Difference in Eigenvalues Among Spatial Channels in Uplink Eigenmode Massive MIMO Transmission
Yuta Abekura (Tokyo Univ. of Science), Satoshi Suyama, Satoshi Nagata (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-52
In this paper, we propose a peak-to-average power ratio (PAPR) reduction method utilizing difference in eigenvalues amon... [more] RCS2023-52
pp.141-146
RCS 2023-06-15
10:40
Hokkaido Hokkaido University, and online
(Primary: On-site, Secondary: Online)
A Study on PAPR Reduction Method Based on Commonly Reserved Tones Among Multiple Users in FDMA Uplink
Ryusei Yamazaki (Tokyo Univ. of Science), Satoshi Suyama, Satoshi Nagata (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-53
This paper proposes a tone reservation (TR) method using common reserved tones among users for suppressing the peak-to-a... [more] RCS2023-53
pp.147-152
RCS 2023-06-15
10:50
Hokkaido Hokkaido University, and online
(Primary: On-site, Secondary: Online)
Investigations on Low-Complexity User-Specific TRP Selection Method in Downlink Distributed MIMO with Regularized ZF-Based Beamforming
Hiroki Kato, Takanori Hara (Tokyo Univ. of Science), Satoshi Suyama, Satoshi Nagata (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-54
In this paper, we propose a computationally-efficient method for user equipment (UE)-specific transmission reception poi... [more] RCS2023-54
pp.153-160
RCS 2023-06-15
11:00
Hokkaido Hokkaido University, and online
(Primary: On-site, Secondary: Online)
Investigation of Highly-Efficient Low-Latency Scheduling Method in Round-Trip Communication for Feedback Control
Ryotaro Iizuka (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic Holdings), Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-55
This paper proposes a highly spectrum-efficient low-latency scheduling method in the round-trip communication for feedba... [more] RCS2023-55
pp.161-166
RCS 2023-06-15
11:10
Hokkaido Hokkaido University, and online
(Primary: On-site, Secondary: Online)
Decentralized Probabilistic Frequency Block-Dependent Base Station Sleep Control for Improving Energy Efficiency Both in Up and Downlinks
Hiroya Kuwahara (Tokyo Univ. of Science), Yuto Muroki, Satoshi Nagata (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-56
In this paper, we propose a decentralized probabilistic method for the frequency block-dependent base station sleep cont... [more] RCS2023-56
pp.167-174
RCS 2023-06-15
11:20
Hokkaido Hokkaido University, and online
(Primary: On-site, Secondary: Online)
Investigations on Non-coherent Transmission Scheme for Grant-free NOMA
Eiji Yoshimura, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-57
 [more] RCS2023-57
pp.175-180
RCS, SR, SRW
(Joint)
2023-03-01
16:40
Tokyo Tokyo Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
A Study of Cross-Link Interference Mitigation with Cell Clustering on Dynamic TDD system
Kiichi Tateishi, Takayuki Yamada, Satoshi Suyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-263
 [more] RCS2022-263
pp.94-99
IT, RCS, SIP 2023-01-24
17:25
Gunma Maebashi Terrsa
(Primary: On-site, Secondary: Online)
PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals at Multiple-Antenna AF Relay Station Under Frequency-Selective Fading Channel
Asuka Kakehashi, Takanori Hara (Tokyo Univ. of Science), Satoshi Suyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) IT2022-46 SIP2022-97 RCS2022-225
 [more] IT2022-46 SIP2022-97 RCS2022-225
pp.96-101
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