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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| 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 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 |
| 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 |
| RCS | 2020-06-24 - 2020-06-26 |
Online | Online | RCS2020-52 |
[more] | RCS2020-52 pp.175-179 |
| RCS | 2020-06-24 - 2020-06-26 |
Online | Online | A Study on Massive MIMO Signal Detection Using Approximate Message Passing Wakaba Tsujimoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.) RCS2020-53 |
[more] | RCS2020-53 pp.181-186 |
| AP, RCS (Joint) |
2019-11-20 13:10 |
Saga | Saga Univ. | Signal detection using Approximate Message Passing with node selection in Massive MIMO System Wakaba Tsujimoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.) RCS2019-210 |
Approximate message passing (AMP), originally proposed in the field of compressed sensing, is applicable to detection of... [more] | RCS2019-210 pp.43-47 |
| RCS, SAT (Joint) |
2019-08-22 09:25 |
Aichi | Nagoya University | A Study on a Performance Improvement by Cyclic Redundancy Check for Large-Scale SCMA Detection Renjie Li, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.) RCS2019-147 |
SCMA attracts attention as a non-orthogonal multiple access method for device-to-device communi- cation. Generally, NOMA... [more] | RCS2019-147 pp.7-12 |
| RCS | 2019-06-19 09:50 |
Okinawa | Miyakojima Hirara Port Terminal Building | Indoor Path Loss Measurements at 900 MHz Band Using LoRaWAN Terminals Wakaba Tsujimoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.) RCS2019-39 |
Among low power wide area networks (LPWANs) which offer a power-saving transmission with a wide area coverage at low cos... [more] | RCS2019-39 pp.13-18 |
| RCS | 2019-06-19 10:00 |
Okinawa | Miyakojima Hirara Port Terminal Building | A Fundamental Study on Downlink Channel Estimation in an FDD System Based on Impulse Response Estimation Shiori Tosaka, Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane, Junichiro Hagiwara (Hokkaido Univ.) RCS2019-40 |
In an FDD system, downlink channel state information (CSI) is necessary at a base station for efficient transmission. Th... [more] | RCS2019-40 pp.19-24 |
| RCS | 2019-06-19 10:10 |
Okinawa | Miyakojima Hirara Port Terminal Building | Throughput Evaluation of Antenna Selection in Indoor Massive MIMO Distributed Antenna Systems Saki Shimaya, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.) RCS2019-41 |
[more] | RCS2019-41 pp.25-29 |
| RCS | 2019-06-19 10:20 |
Okinawa | Miyakojima Hirara Port Terminal Building | Comparison of Compressed Sensing Algorithms for DOA Estimation Seigi Nakatsu, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.) RCS2019-42 |
[more] | RCS2019-42 pp.31-35 |
| RCS | 2019-06-19 10:30 |
Okinawa | Miyakojima Hirara Port Terminal Building | A Fundamental Study on Channel Estimation Using Deep Learning Ryota Nakajima, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.) RCS2019-43 |
In wireless communication, channel estimation is essential to detect transmitted signals from received signals. At prese... [more] | RCS2019-43 pp.37-42 |
| RCS, SIP, IT | 2019-01-31 09:50 |
Osaka | Osaka University | Studies on Channel Prediction with Multipath Separation Based on Delay Estimation Yuta Takano, Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane, Junichiro Hagiwara (Hokkaido Univ.) IT2018-37 SIP2018-67 RCS2018-244 |
[more] | IT2018-37 SIP2018-67 RCS2018-244 pp.13-18 |
| RCS, NS (Joint) |
2018-12-20 11:20 |
Hiroshima | Onomichi City Hall | Considerations on Computational Complexity Reduction of Receive Weight Matrices in MIMO SC-FDE Kensei Saito, Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane, Junichiro Hagiwara (Hokkaido Univ.) RCS2018-220 |
[more] | RCS2018-220 pp.25-30 |
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