Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS |
2022-06-16 14:55 |
Okinawa |
University of the Ryukyus, Senbaru Campus and 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 |
RCS |
2022-06-17 14:00 |
Okinawa |
University of the Ryukyus, Senbaru Campus and online (Primary: On-site, Secondary: Online) |
Fundamental Considerations on Channel Prediction Based on Multipath Delay and Angle-of-Arrival Estimation for Sub-Terahertz Band Communications Daigo Mochizuki, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.) RCS2022-63 |
A sub-Terahertz band above 100 GHz will be used in 6G for extremely high-speed communication. In such a high frequency b... [more] |
RCS2022-63 pp.230-235 |
RCS, SIP, IT |
2022-01-20 17:20 |
Online |
Online |
Hyper Parameter Optimization with Genetic Algorithm in Reservoir Computing Based MIMO-OFDM Detection Yuanyou Chen, Hiroshi Tsutsui, Takeo Ohgane (Hokkaido Univ.) IT2021-46 SIP2021-54 RCS2021-214 |
In this paper, we investigate a MIMO-OFDM symbol detection based on reservoir computing (RC), which is a special type of... [more] |
IT2021-46 SIP2021-54 RCS2021-214 pp.96-100 |
RCS, SIP, IT |
2022-01-21 09:25 |
Online |
Online |
Studies on Sub-Terahertz MIMO Spatial Multiplexing in an Indoor Propagation Environment Taichi Utsuno, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.) IT2021-62 SIP2021-70 RCS2021-230 |
[more] |
IT2021-62 SIP2021-70 RCS2021-230 pp.189-194 |
RCS, SIP, IT |
2022-01-21 09:50 |
Online |
Online |
Studies on Channel Prediction in a Millimeter-Wave Band Based on Multipath Delay and Angle-of-Arrival Estimation Daigo Mochizuki, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.) IT2021-63 SIP2021-71 RCS2021-231 |
A multi-user MIMO system can achieve high-capacity communication using downlink channel state information (CSI) for each... [more] |
IT2021-63 SIP2021-71 RCS2021-231 pp.195-200 |
RCS, SIP, IT |
2022-01-21 11:45 |
Online |
Online |
Study on compensation for axis misalignment of UCA with multiple UCAs Nobuhiko Sakuraya, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ), Tomoya Tandai, Daisuke Uchida (Toshiba) IT2021-76 SIP2021-84 RCS2021-244 |
In recent years, mobile data traffic has increased explosively due to increasing wireless devices. Capacity enhancement ... [more] |
IT2021-76 SIP2021-84 RCS2021-244 pp.270-275 |
RCS, SR, NS, SeMI, RCC (Joint) |
2021-07-16 14:30 |
Online |
Online |
Considerations on Accuracy Improvement in Close DOA Estimation with Deep Learning Yuya Kase, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Takanori Sato (Hokkaido Univ.), Yoshihisa Kishiyama (NTT DOCOMO) RCC2021-39 NS2021-55 RCS2021-97 SR2021-39 SeMI2021-28 |
In addition to subspace methods such as MUSIC and ESPRIT, recently,
compressed sensing and deep learning have been appl... [more] |
RCC2021-39 NS2021-55 RCS2021-97 SR2021-39 SeMI2021-28 pp.77-82(RCC), pp.118-123(NS), pp.98-103(RCS), pp.100-105(SR), pp.76-81(SeMI) |
RCS |
2021-06-23 09:30 |
Online |
Online |
Considerations on computational complexity reduction in channel prediction based on multipath separation Daigo Mochizuki, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.) RCS2021-29 |
In multi-user MIMO systems, a base station suppresses inter-user-interferences using downlink channel state information ... [more] |
RCS2021-29 pp.1-6 |
RCS |
2021-06-23 09:40 |
Online |
Online |
A Comparison of Variational Bayesian and Expectation Propagation Methods for Massive MIMO Signal Detection Hiroki Asumi, Junichiro Hagiwara, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Takanori Sato (Hokkaido Univ.) RCS2021-30 |
Signal detection in massive MIMO has difficulty in reducing computational complexity as the number of antennas increases... [more] |
RCS2021-30 pp.7-12 |
RCS |
2021-06-23 09:50 |
Online |
Online |
A basic study on signal detection using learned approximate message passing Mari Miyoshi, Wakaba Tsujimoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.) RCS2021-31 |
Approximate message passing (AMP) is applicable to massive MIMO signal detection and achieves a high detection performan... [more] |
RCS2021-31 pp.13-18 |
RCS |
2021-06-23 16:35 |
Online |
Online |
A Study on the Behavior of LLR messages in Damped GaBP for Large-scale Signal Detection under a Correlated Channel Daniel Akira Ando, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.) RCS2021-45 |
For large-scale signal detection, Gaussian Belief Propagation (GaBP) is known as a method providing a near-optimal perfo... [more] |
RCS2021-45 pp.97-102 |
RCS, SR, SRW (Joint) |
2021-03-05 16:55 |
Online |
Online |
Compensation for axis misalignment of UCA with OAM beam control Nobuhiko Sakuraya, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ), Tomoya Tandai, Daisuke Uchida (Toshiba) RCS2020-260 |
In recent years, mobile data traffic has increased explosively due to increasing wireless devices. Capacity enhancement ... [more] |
RCS2020-260 pp.261-266 |
RCS, SR, SRW (Joint) |
2021-03-05 17:20 |
Online |
Online |
[Encouragement Talk]
A Study on Downlink Channel Estimation Based on Multipath Separation in a Wideband FDD System Shiori Tosaka, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.) RCS2020-261 |
In an FDD system, downlink channel state information (CSI) is necessary at a base station for efficient transmission.
T... [more] |
RCS2020-261 pp.267-272 |
SIP, IT, RCS |
2021-01-21 13:10 |
Online |
Online |
Performance Evaluation of Loose Beamforming for Different Receiver Numbers Tatsuki Otsuka, Toshihiko Nishimura, Takeo Ohgane, Takanori Sato, Junichiro Hagiwara, Yasutaka Ogawa (Hokkaido Univ.) IT2020-76 SIP2020-54 RCS2020-167 |
[more] |
IT2020-76 SIP2020-54 RCS2020-167 pp.75-80 |
NS, RCS (Joint) |
2020-12-17 11:25 |
Online |
Online |
Improvement on Signal Detection Performance with HMC in Massive MIMO Kazushi Matsumura, Junichiro Hagiwara, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Takanori Sato (Hokkaido Univ.) RCS2020-135 |
In massive MIMO, a new technology for wireless transmission, various approaches to reduce the computational complexity a... [more] |
RCS2020-135 pp.7-12 |
SR, NS, SeMI, RCC, RCS (Joint) |
2020-07-09 13:25 |
Online |
Online |
Considerations on Accuracy Improvement in DOA Estimation Using Deep Learning Yuya Kase, Takanori Sato, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Daisuke Kitayama, Yoshihisa Kishiyama (NTT DOCOMO) RCC2020-5 NS2020-34 RCS2020-68 SR2020-13 SeMI2020-5 |
Direction of arrival (DOA) estimation of radio waves using a various types of array antennas are generally classified in... [more] |
RCC2020-5 NS2020-34 RCS2020-68 SR2020-13 SeMI2020-5 pp.19-24(RCC), pp.19-24(NS), pp.61-66(RCS), pp.25-30(SR), pp.13-18(SeMI) |
RCS |
2020-06-25 10:50 |
Online |
Online |
Suppression of performance degradation due to misalignment in OAM multiplexing Nobuhiko Sakuraya, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ), Tomoya Tandai, Daisuke Uchida (Toshiba) RCS2020-33 |
In recent years, mobile data traffic has increased explosively due to increasing wireless devices. Capacity enhancement ... [more] |
RCS2020-33 pp.61-66 |
RCS |
2020-06-25 11:15 |
Online |
Online |
A Study on Loose Beam Forming Using Differential Evolution Tatsuki Otsuka, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.) RCS2020-34 |
In multi-user massive MIMO systems, it is concerned that the computational load to form a weight increases drastically a... [more] |
RCS2020-34 pp.67-72 |
RCS |
2020-06-25 14:30 |
Online |
Online |
A Study on Signal Detection in Massive MIMO Using MCMC Kazushi Matsumura, Junichiro Hagiwara, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Takanori Sato (Hokkaido Univ.) RCS2020-38 |
MIMO is a new technology for wireless transmission; as the number of antennas increases, the computational complexity of... [more] |
RCS2020-38 pp.91-95 |
RCS |
2020-06-25 14:55 |
Online |
Online |
A Study on the Behavior of Each LLR in Gaussian Belief Propagation Daniel Akira Ando, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.) RCS2020-39 |
We have entered the era of the Internet of Things (IoT), where everything can now be connected to the internet. In order... [more] |
RCS2020-39 pp.97-102 |