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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SAT, RCS (Joint) |
2024-08-29 17:25 |
Kochi | CUL-PORT(Kochi City) (Temporary) (Kochi, Online) (Primary: On-site, Secondary: Online) |
A Study on Nonlinear Precoding Methods in Massive MIMO
-- Improvement of VP Method Using MCMC and Comparison with THP Method -- Shunsuke Kakuta (Hokkaido Univ.), Junichiro Hagiwara (Mukogawa Women's Univ.), Toshihiko Nishimura, Yasutaka Ogawa, Takeo Ohgane (Hokkaido Univ.)  RCS2024-123 |
In order to achieve high performance wireless communications for Beyond 5G and 6G, MIMO (Multiple-Input Multiple-Output)... [more] | RCS2024-123 pp.36-41 |
| RCS | 2024-06-20 16:55 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Characterization of Sub-THz-Band MIMO Spatial Multiplexing With Channel Estimation Errors Naoki Hamada, Toshihiko Nishimura, Yasutaka Ogawa (Hokkaido Univ.), Junichiro Hagiwara (Mukogawa Women's Univ.), Takeo Ohgane (Hokkaido Univ.) RCS2024-68 |
A sub-THz band is expected to play an important role in extreme high-data-rate transmission of sixth-generation mobile c... [more] | RCS2024-68 pp.241-246 |
| RCS | 2024-06-21 10:20 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Study on IRS Control Using Vision-Assisted Beam Management in Sub-Terahertz-Band Communications Ryuhei Kobayashi, Toshihiko Nishimura, Yasutaka Ogawa (Hokkaido Univ.), Junichiro Hagiwara (Mukogawa Women's Univ.), Takeo Ohgane (Hokkaido Univ.) RCS2024-76 |
Extreme highspeed transmission over 100 Gbps is expected in 6G mobile communication system using a sub-Terahertz band of... [more] | RCS2024-76 pp.281-286 |
| RCS, SR, SRW (Joint) |
2024-03-13 16:15 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Tokyo, Online) (Primary: On-site, Secondary: Online) |
DOA Estimation Improvement Through Angle-Range-Reduced DNNs Specialized in Narrow DOA Range Daniel Akira Ando, Toshihiko Nishimura, Takanori Sato, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Junichiro Hagiwara (Mukogawa Women's Univ.) RCS2023-266 |
In this work, we propose a strategy based on deep neural networks (DNNs) intended to support our past DNN method for dir... [more] | RCS2023-266 pp.71-76 |
| RCS, SR, SRW (Joint) |
2024-03-15 14:15 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Encouragement Talk]
Considerations on Computational Complexity Reduction in Channel Prediction Based on Multipath Separation for Sub-THz-Band Communications Daigo Mochizuki, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa (Hokkaido Univ.), Junichiro Hagiwara (Mukogawa Women's Univ.), Takeo Ohgane (Hokkaido Univ.) RCS2023-288 |
In sixth-generation mobile communications, a sub-THz band will be used for extreme high-data rate communication. Because... [more] | RCS2023-288 pp.152-157 |
| RCS | 2023-06-14 09:30 |
Hokkaido | Hokkaido University, and online (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
Study on Subarray Beam Control for Sub-Terahertz-Band MIMO Spatial Multiplexing Naoki Hamada, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Takeo Ohgane (Hokkaido Univ.) RCS2023-28 |
In 6th generation mobile communication system (6G), the use of sub-Terahertz band (100–300 GHz) is being considered to r... [more] | RCS2023-28 pp.1-6 |
| RCS | 2023-06-14 09:40 |
Hokkaido | Hokkaido University, and online (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
Study on Characteristic Improvement of Direct-Binary Search Leveraged Loose Beam Forming in Massive MIMO Systems Yuta Hayashi, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Takeo Ohgane (Hokkaido Univ.) RCS2023-29 |
In massive MIMO systems, a loose beam forming method is considered to solve the problem of increased computation and ant... [more] | RCS2023-29 pp.7-12 |
| RCS | 2023-06-14 09:50 |
Hokkaido | Hokkaido University, and online (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
A Study on Vector Perturbation Method Using MCMC in Massive MIMO Shunsuke Kakuta (Hokkaido Univ.), Junichiro Hagiwara (Mukogawa Women's Univ.), Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Takeo Ohgane (Hokkaido Univ.) RCS2023-30 |
[more] | RCS2023-30 pp.13-18 |
| IT, RCS, SIP | 2023-01-24 12:20 |
Gunma | Maebashi Terrsa (Gunma, Online) (Primary: On-site, Secondary: Online) |
A Study on Performance Improvement of Stochastic MIMO Signal Detection Using Variational Bayesian Methods Hiroki Asumi, Shunsuke Kakuta, Junichiro Hagiwara, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Takeo Ohgane (Hokkaido Univ.) IT2022-34 SIP2022-85 RCS2022-213 |
[more] | IT2022-34 SIP2022-85 RCS2022-213 pp.30-35 |
| IT, RCS, SIP | 2023-01-24 15:55 |
Gunma | Maebashi Terrsa (Gunma, Online) (Primary: On-site, Secondary: Online) |
Impact of Channel Estimation Error on Antenna Selection Using Simulated Annealing for Distributed MIMO Systems Kento Nishimura, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ) IT2022-43 SIP2022-94 RCS2022-222 |
Distributed MIMO systems, which have been considered in recent years, use a very large number of base station antennas, ... [more] | IT2022-43 SIP2022-94 RCS2022-222 pp.78-83 |
| IT, RCS, SIP | 2023-01-24 16:20 |
Gunma | Maebashi Terrsa (Gunma, Online) (Primary: On-site, Secondary: Online) |
Study on IRS Control based on Beamforming for Sub-Terahertz Band Communications Shuto Tadokoro, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.) IT2022-44 SIP2022-95 RCS2022-223 |
[more] | IT2022-44 SIP2022-95 RCS2022-223 pp.84-89 |
| IT, RCS, SIP | 2023-01-24 16:45 |
Gunma | Maebashi Terrsa (Gunma, Online) (Primary: On-site, Secondary: Online) |
Characteristics Analysis of Direction of Arrival Estimation with Compressed Sensing Using Grid Shifts Shudai Kunimoto, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.) IT2022-45 SIP2022-96 RCS2022-224 |
[more] | IT2022-45 SIP2022-96 RCS2022-224 pp.90-95 |
| IT, RCS, SIP | 2023-01-25 14:35 |
Gunma | Maebashi Terrsa (Gunma, Online) (Primary: On-site, Secondary: Online) |
Study on computational complexity reduction in channel prediction for sub-THz band communications Daigo Mochizuki, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.) IT2022-64 SIP2022-115 RCS2022-243 |
[more] | IT2022-64 SIP2022-115 RCS2022-243 pp.202-207 |
| RCS | 2022-10-27 14:00 |
Ehime | Ehime University, and online (Ehime, Online) (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Spatial Signal Processing in Sub-Terahertz-Band Indoor Radio Communications Yasutaka Ogawa, Toshihiko Nishimura, Takanori Sato, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.) RCS2022-135 |
The sixth-generation (6G) mobile communication system has been studied to commercialize the service in around 2030. One ... [more] | RCS2022-135 p.28 |
| RCS | 2022-10-28 10:55 |
Ehime | Ehime University, and online (Ehime, Online) (Primary: On-site, Secondary: Online) |
A Study on Channel Prediction Based on Multipath Separation for Sub-Terahertz-Band Communications Daigo Mochizuki, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.) RCS2022-145 |
[more] | RCS2022-145 pp.83-88 |
| MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] | 2022-07-19 11:15 |
Hokkaido | Asahikawa Civic Culture Hall (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
[Invited Talk]
Spatial-Domain Signal Processing in Sub-Terahertz Communications Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ.) EMT2022-21 MW2022-45 OPE2022-24 EST2022-22 MWPTHz2022-19 |
The sixth-generation mobile communication is being extensively studied to commercialize the services in around 2030. A f... [more] | EMT2022-21 MW2022-45 OPE2022-24 EST2022-22 MWPTHz2022-19 p.72 |
| RCS | 2022-06-16 11:05 |
Okinawa | University of the Ryukyus, Senbaru Campus and online (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Direction of Arrival Estimation with Compressed Sensing Using Grid Shifts Shudai Kunimoto, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.) RCS2022-47 |
[more] | RCS2022-47 pp.138-143 |
| RCS | 2022-06-16 11:15 |
Okinawa | University of the Ryukyus, Senbaru Campus and online (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Considerations on IRS Control based on Beamforming for Sub-Terahertz Band Communications Shuto Tadokoro, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.) RCS2022-48 |
[more] | RCS2022-48 pp.144-149 |
| RCS | 2022-06-16 14:30 |
Okinawa | University of the Ryukyus, Senbaru Campus and online (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Comparison of Performance and Complexity for different Search Methods in Stochastic MIMO Signal Detection Hiroki Asumi, Yukiko Kasuga, Kazushi Matsumura, Junichiro Hagiwara, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Takeo Ohgane (Hokkaido Univ.) RCS2022-49 |
In large-scale MIMO signal detection, the computational complexity increases as the number of antennas increases. We hav... [more] | RCS2022-49 pp.150-155 |
| RCS | 2022-06-16 14:55 |
Okinawa | University of the Ryukyus, Senbaru Campus and online (Okinawa, Online) (Primary: On-site, Secondary: Online) |
A study on model parameters for MIMO signal detection using learned AMP Mari Miyoshi, Toshihiko Nishimura, Takanori Sato, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.) RCS2022-50 |
Approximate message passing (AMP) is applicable to massive MIMO signal detection and achieves a high detection performan... [more] | RCS2022-50 pp.156-161 |
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