Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
COMP |
2024-03-14 11:00 |
Tokyo |
The University of Electro-Communications |
Proof of NP-completeness of Tasukuea Chiho Fukunaga, Seiya Okubo (Univ. of Shizuoka) COMP2023-29 |
In this study, we prove that the existence determination of a solution is NP-complete problem for Tasukuea, a kind of co... [more] |
COMP2023-29 pp.6-13 |
RCS, SR, SRW (Joint) |
2024-03-15 14:15 |
Tokyo |
The University of Tokyo (Hongo Campus), and 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 |
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, NS (Joint) |
2022-12-15 11:40 |
Aichi |
Nagoya Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
Evaluation of MMSE Postcoding Schemes for Reducing Inter-cluster-interference in A Cellular Distributed MU-MIMO System Ryo Takahashi, Hidenori Matsuo, Fumiyuki Adachi (Tohoku Univ.) RCS2022-189 |
Cellular distributed multi-user MIMO (MU-MIMO) is a system in which a large number of distributed antennas deployed over... [more] |
RCS2022-189 pp.25-30 |
COMP |
2022-03-06 10:30 |
Online |
Online |
EXPTIME-Completeness of Generalized Tsume-Chushogi Akihiro Uejima, Yuya Kiba, Junichi Omori, Masaaki Sato (Osaka Electro-Communication Univ.) COMP2021-32 |
We consider the `Tsume-ChuShogi' that restricted chushogi such that at every turn, the attack-side player (the first pla... [more] |
COMP2021-32 pp.8-15 |
AP, RCS (Joint) |
2021-11-10 14:55 |
Nagasaki |
NBC-Bekkan (Nagasaki) (Primary: On-site, Secondary: Online) |
Computational Complexity Reduction of High Accuracy Fingerprint Method by using Last Received Data on Time Series and correcting Receiving Performance deference Takahiro Tsujino, Teruya Fujii (Tokyo Tech) RCS2021-151 |
As a location detection method without using GPS, there is a fingerprint method. It measures the received radio wave pow... [more] |
RCS2021-151 pp.40-45 |
RCS |
2021-06-23 13:20 |
Online |
Online |
Investigation on Complexity Reduction in Peak Cancellation Signal-Based PAPR Reduction Method Using Null Space in MIMO Channel Kenta Hosoi (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2021-38 |
In this paper, we propose an algorithm to further reduce the computational complexity of the peak-to-average power ratio... [more] |
RCS2021-38 pp.56-61 |
RCS |
2020-06-25 13:25 |
Online |
Online |
PC-Signal-Based PAPR Reduction Using Null Space in MIMO Channel for MIMO-OFDM Signals under Frequency-Selective Fading Channel Leon Yamaguchi (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-36 |
In this paper, we propose a computational complexity-efficient algorithm for the adaptive peak-to-average power ratio (P... [more] |
RCS2020-36 pp.79-84 |
IT, SIP, RCS |
2020-01-23 10:50 |
Hiroshima |
Hiroshima City Youth Center |
Parallelly Processed Adaptive PAPR Reduction Method Using Null Space in MIMO Channel based on Peak Cancellation Signal for MIMO-OFDM Signals Taku Suzuki, Mikihito Suzuki, Kenichi Higuchi (Tokyo Univ. of Science) IT2019-42 SIP2019-55 RCS2019-272 |
In this paper,an algorithm to reduce the required iterations for the peak-to-average power ratio (PAPR) reduction is pro... [more] |
IT2019-42 SIP2019-55 RCS2019-272 pp.37-43 |
AP |
2019-08-22 10:25 |
Hokkaido |
Hokkai-Gakuen Univ. |
Block Diagonalization using Pseudo Inverse Matrix for MU-MIMO Keiya Uchida, Mitoshi Fujimoto (Univ. Fukui), Koshiro Kitao, Tetsuro Imai (NTT DOCOMO) AP2019-54 |
The 5th Generation(5G) will introduce MU-MIMO to achieve super high bit rate. Also, Massive MIMO will be effective to co... [more] |
AP2019-54 pp.39-42 |
RCS |
2019-06-20 09:40 |
Okinawa |
Miyakojima Hirara Port Terminal Building |
Investigation on Efficient Construction Scheme of Peak Cancellation Signals in Complexity-Reduced PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals Taku Suzuki, Mikihito Suzuki (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-64 |
In this paper, we investigate efficient construction schemes of the peak cancellation (PC) signals in the complexity-red... [more] |
RCS2019-64 pp.161-167 |
RCS |
2019-06-21 15:25 |
Okinawa |
Miyakojima Hirara Port Terminal Building |
Complexity-Reduced Algorithm for Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals Mikihito Suzuki, Taku Suzuki (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-97 |
In this paper, we propose a computational complexity-reduced algorithm for our previously reported adaptive peak-to-aver... [more] |
RCS2019-97 pp.353-358 |
SIP |
2017-08-24 14:40 |
Tokyo |
Tokyo Denki University |
Computational Complexity Reduction for Third-order Volterra Filter Based on Singular Value Decomposition and the Application to the Compensation of Third-order Nonlinear Distortions Yuya Nakahira, Kenta Iwai, Yoshinobu Kajikawa (Kansai Univ.) SIP2017-53 |
Nonlinear distortions of loudspeaker systems affect the sound quality and
should be accordingly compensated by any lin... [more] |
SIP2017-53 pp.27-32 |
CAS, CS |
2017-02-24 16:25 |
Shiga |
|
A Study on Computational Complexity Reduction of Orthogonal Precoding for Sidelobe Suppression of OFDM Signals Hikaru Kawasaki, Takahiro Matsui, Masaya Ohta, Katsumi Yamashita (OPU) CAS2016-136 CS2016-97 |
N-continuous OFDM is a precoding method for sidelobe suppression of orthogonal frequency division multiplexing (OFDM) si... [more] |
CAS2016-136 CS2016-97 pp.123-127 |
COMP, IPSJ-AL |
2016-06-24 13:45 |
Ishikawa |
|
On completeness of polynomial-time counting hierarchy under relaxed subtractive reductions Shunichi Matsubara (Aoyama Gakuin Univ.) COMP2016-7 |
The polynomial-time hierarchy was introduced by Meyer and Stockmeyer, which is a hierarchy on decision problems and has ... [more] |
COMP2016-7 pp.9-12 |
PRMU, IPSJ-CVIM, MVE [detail] |
2016-01-22 15:35 |
Osaka |
|
A Note on the Computational Complexity Reduction Method of the Optimal Prediction under Bayes Criterion in Semi-Supervised Learning Yuto Nakano, Shota Saito, Toshiyasu Matsushima (Waseda Univ.) PRMU2015-130 MVE2015-52 |
In this paper, we deal with a prediction problem of the semi-supervised learning based on the statistical decision theor... [more] |
PRMU2015-130 MVE2015-52 pp.275-280 |
COMP |
2015-10-02 10:00 |
Tokyo |
|
Upper and lower bounds and time complexities on the Frobenius problem obtained from analysing its additive structure Shunichi Matsubara (Aoyama Gakuin Univ.) COMP2015-22 |
In this work, we investigate upper and lower bounds for the Frobenius problem, using some existing results in additive c... [more] |
COMP2015-22 pp.1-5 |
NC, IPSJ-BIO, IBISML, IPSJ-MPS (Joint) [detail] |
2015-06-25 09:55 |
Okinawa |
Okinawa Institute of Science and Technology |
Computational Complexity Reduction for Functional Connectivity Estimation in Large Scale Neural Network JeongHun Baek, Shigeyuki Oba (Kyoto Univ.), Junichiro Yoshimoto, Kenji Doya (OIST), Shin Ishii (Kyoto Univ.) IBISML2015-22 |
Identification of functional connectivity between neurons is an important issue in computational neu- roscience. Recentl... [more] |
IBISML2015-22 pp.181-185 |
SIP, EA, SP |
2015-03-03 10:45 |
Okinawa |
|
[Poster Presentation]
Compensation of Nonlinear Distortions for Parametric Array Loudspeakers
-- Reduction of Computational Complexity of Volterra Filters and the Compensation Effects -- Yuta Hatano, Satoshi Kinoshita, Chuang Shi, Yoshinobu Kajikawa (Kansai Univ.) EA2014-119 SIP2014-160 SP2014-182 |
Reproduction sound of the parametric array loudspeaker (PAL) contains many nonlinear distortions. Therefore we proposed ... [more] |
EA2014-119 SIP2014-160 SP2014-182 pp.261-266 |
COMP |
2014-12-05 13:55 |
Kumamoto |
Sojo University |
Carry-free positional notation for nonnegative integer combinations of given sets of positive integers satisfying some conditions Shunichi Matsubara (Aoyama Gakuin Univ.) COMP2014-36 |
In this paper, we investigate conditions to compute nonnegative integer combinations for a given set of positive integer... [more] |
COMP2014-36 pp.23-27 |