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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 172  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2020-10-22
09:30
Online Online Shared dataset framework toward applications of machine learning and mathematical optimization for 6G
Kazuki Maruta (Tokyo Tech.), Yuta Ida (Yamaguchi Univ.), Yafei Hou (Okayama Univ.), Osamu Muta (Kyushu Univ.), Hiraku Okada (Nagoya Univ.), Toshihiko Nishimura (Hokkaido Univ.), Eiji Okamoto (Nagoya Inst. of Tech.), Yukitoshi Sanada (Keio Univ.), Hidekazu Murata (Kyoto Univ.), Satoshi Denno (Okayama Univ.)
 [more]
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
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
AP, RCS
(Joint)
2019-11-20
14:15
Saga Saga Univ. A Study on Performance Improvement for OAM Mode Multiplexing Using Multiple UCAs
Ayano Yamamoto, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ.), Tomoya Tandai, Daisuke Uchida (Toshiba Corp.) RCS2019-212
A novel spatial multiplexing transmission system using orthogonality of orbital angular momentum (OAM) mode has been att... [more] RCS2019-212
pp.55-60
MIKA
(2nd)
2019-10-03
13:35
Hokkaido Hokkaido Univ. [Invited Lecture] DOA Estimation Using Sparse Modeling
Toshihiko Nishimura, Seigi Nakatsu, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.)
The problem of estimating the direction of arrival (DOA) of radio waves from signals received by multiple antennas is a ... [more]
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
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-11
13:55
Osaka I-Site Nanba(Osaka) A Study on Close DOA Estimation with Deep Learning
Yuya Kase, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Daisuke Kitayama, Yoshihisa Kishiyama (NTT DOCOMO) RCC2019-39 NS2019-75 RCS2019-132 SR2019-51 SeMI2019-48
Direction of arrival (DOA) estimation of radio waves is applicable to localization of users in mobile communication and ... [more] RCC2019-39 NS2019-75 RCS2019-132 SR2019-51 SeMI2019-48
pp.133-138(RCC), pp.159-164(NS), pp.155-160(RCS), pp.165-170(SR), pp.147-152(SeMI)
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-12
14:15
Osaka I-Site Nanba(Osaka) A Narrowband Pilot-less Coherent Detection for FSK with Transmit Diversity
Kanako Yamaguchi, Masatsugu Higashinaka, Sano Hiroyasu, Atsushi Okamura (Mitsubishi Electric Corp.), Takeo Ohgane, Toshihiko Nishimura (Hokkaido Univ.) RCS2019-144
We propose a narrowband pilot-less coherent detection for FSK(Frequency Shift Keying) with phase rotated transmit divers... [more] RCS2019-144
pp.211-216
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 2019-06-21
14:35
Okinawa Miyakojima Hirara Port Terminal Building A Study on CRC-aided Signal Detection Using Gaussian Belief Propagation in Interleave Division Multiple Access
Wataru Kawabata, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.) RCS2019-95
With the progress of IoT, an explosive increase in the number of devices connected to the Internet is predicted. Among m... [more] RCS2019-95
pp.339-345
 Results 1 - 20 of 172  /  [Next]  
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