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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCC, ISEC, IT, WBS | 2024-03-13 - 2024-03-14 |
Osaka | Osaka Univ. (Suita Campus) | Performance evaluation of throughput increase method in Optical wireless OFDM system in multipath channel. Yutaka Munakata, Kouji Ohuchi (Shizuoka Univ.)  IT2023-125 ISEC2023-124 WBS2023-113 RCC2023-107 |
To ease the shortage of radio frequency resources, optical wireless communications (OWC) are attracting much attention. ... [more] | IT2023-125 ISEC2023-124 WBS2023-113 RCC2023-107 pp.312-316 |
| ITS, WBS, RCC | 2023-12-21 15:15 |
Okinawa | (Primary: On-site, Secondary: Online) |
Throughput increase method in Optical wireless OFDM system using precoding matrix selection Yutaka Munakata, Kouji Ohuchi (Shizuoka Univ.) WBS2023-45 ITS2023-28 RCC2023-39 |
To ease the shortage of radio frequency resources, optical wireless communications (OWC) is attracting much attention. ... [more] |
WBS2023-45 ITS2023-28 RCC2023-39 pp.87-91 |
| CS | 2023-07-28 14:30 |
Tokyo | Hachijo-machi Chamber of Commerce and Industry | A Precoding Scheme to Suppress both Out-of-Band Emission and Peak Power of OFDM Signals using Trapezoidal Block Householder Reflector Hikaru Kawasaki, Takeshi Matsumura (NICT) CS2023-57 |
The authors have proposed a trapezoidal block Householder reflector (TBHR) to represent a unitary matrix in orthonormali... [more] | CS2023-57 pp.157-162 |
| SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-13 14:15 |
Osaka | Osaka University Nakanoshima Center + Online (Primary: On-site, Secondary: Online) |
A configuration for overloaded MU-MIMO systems Kazuki Miyata, Satoshi Denno, Yafei Hou (Okayama Univ.) RCS2023-94 |
In this report, we consider overload communication in MU-MIMO systems in order to further increase the capacity of downl... [more] | RCS2023-94 pp.76-81 |
| CS | 2022-07-15 10:50 |
Kagoshima | Yakushima Environmental and Cultural Village Center (Primary: On-site, Secondary: Online) |
Trapezoidal Block Householder Reflector and Its Application to Precoding Hikaru Kawasaki, Takeshi Matsumura (NICT) CS2022-32 |
Orthonormalization like singular value decomposition and QR decomposition is closely related to solution representation ... [more] | CS2022-32 pp.83-88 |
| RCS, SIP, IT | 2022-01-20 14:30 |
Online | Online | A zero-forcing linear precoding scheme using QR decomposition with greedy permutation for MIMO communications Shigenori Kinjo (JCGA), Shuichi Ohno (Osaka City Univ.) IT2021-57 SIP2021-65 RCS2021-225 |
In this report, we study a zero-forcing linear precoding (ZFLP) scheme using QR decomposition with greedy permutation, w... [more] | IT2021-57 SIP2021-65 RCS2021-225 pp.161-166 |
| SIS | 2021-12-03 10:55 |
Online | Online | A study on threshold about PMI/RI selection using cumulative channel capacity Ryunosuke Sakamoto, Naoto Sasaoka (Tottori Univ.) SIS2021-22 |
A MIMO precoding system selects PMI(Precoding Matrix Indicator) and RI(Rank Indicator) according to the mutual informati... [more] | SIS2021-22 pp.7-10 |
| RCS, SIP, IT | 2019-02-01 12:30 |
Osaka | Osaka University | PMI/RI selection based on Cumulative channel capacity Takumi Sasaki, Naoto Sasaoka, Yoshio Ito (Tottori Univ) IT2018-60 SIP2018-90 RCS2018-267 |
In this paper, we proposes precoding matrix indicator/rank indicator(PMI/RI) selection method based on rank adaptation u... [more] | IT2018-60 SIP2018-90 RCS2018-267 pp.145-148 |
| WBS, ITS, RCC | 2018-12-07 16:05 |
Okinawa | Miyako Island Hirara Port Terminal Bldg. | Influence of Non-linear Amplifier in OFDM System with Increasing Transmission Information Ryohei Iwasaki, Kouji Ohuchi (Shizuoka Univ.) WBS2018-73 ITS2018-56 RCC2018-104 |
An OFDM (Orthogonal Frequency Division Multiplexing) system needs a large amount of transmission information for improve... [more] | WBS2018-73 ITS2018-56 RCC2018-104 pp.255-260 |
| WBS | 2018-10-12 13:30 |
Hiroshima | National Institute of Technology, Hiroshima College | Effective PAPR Reduction Method in OFDM by Using Precoding Matrix Ryohei Iwasaki, Kouji Ohuchi (Shizuoka Univ.) WBS2018-18 |
An OFDM (Orthogonal Frequency Division Multiplexing) signal has a drawback of a high PAPR (Peak to Average Power Ratio).... [more] | WBS2018-18 pp.1-6 |
| RCS, SR, SRW (Joint) |
2018-03-02 17:35 |
Kanagawa | YRP | Parameter Control Method for Massive MIMO using Hybrid Beamforming Ryutaro Kitajima, Kazuhiko Fukawa, Yuyuan Chang (Tokyo Tech) RCS2017-394 |
For the next generation mobile communications, hybrid beamforming (HB) that consists of joint analog beamforming (AB) an... [more] | RCS2017-394 pp.417-422 |
| RCS, SAT (Joint) |
2017-08-18 10:00 |
Niigata | Niigata Univ. | [Invited Lecture]
Extension of Tomlinson-Harashima Precoding Technique Employing Perturbation Vector Search for Downlink MU-MIMO Systems Manabu Mikami (SoftBank) SAT2017-31 RCS2017-161 |
For downlink multi-user multi-input multi-output systems (DL-MU-MIMO), non-linear precoding (NLP) based on Tomlinson- Ha... [more] | SAT2017-31 RCS2017-161 pp.55-60(SAT), pp.97-102(RCS) |
| RCS, SR, SRW (Joint) |
2017-03-03 09:25 |
Tokyo | Tokyo Institute of Technology | Performance of Linear Precoding with Doppler Compensation for Massive MIMO in Higher Frequency Bands Ilmiawan Shubhi, Hidekazu Murata (Kyoto Univ.) RCS2016-322 |
The drastic growth of traffic demand motivates the exploration of the underutilized frequency spectrum on the high frequ... [more] | RCS2016-322 pp.181-185 |
| 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 |
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| CS, CAS | 2016-02-25 13:55 |
Wakayama | Laforet Nanki-Shirahama Hotel | A Study on Computational Complexity Reduction of Orthogonal Precoding for Cognitive Radio Systems Hikaru Kawasaki, Masaya Ohta, Katsumi Yamashita (Osaka Pref. Univ.) CAS2015-81 CS2015-86 |
その研究内容はこちらになりまして、信号処理アルゴリズムという理論面とそのFPGAによる実装面の両方の研究を行っています。 これによって有限である周波数資源を効率的に利用し，トラヒック増大の問題を解決したいと考えています。 Ort... [more] |
CAS2015-81 CS2015-86 pp.7-11 |
| AP, RCS, WPT, SAT (Joint) |
2015-11-05 11:20 |
Okinawa | Okinawa Prefectural Museum & Art Museum | Open-Loop Correlation Reduction Precoding in Overloaded MIMO-OFDM Systems Hikari Matsuoka, Yoshihito Doi, Tatsuro Yabe, Yukitoshi Sanada (Keio Univ.) RCS2015-212 |
This report proposes an open-loop correlation reduction precoding scheme for overloaded multiple-input multiple-output (... [more] | RCS2015-212 pp.133-138 |
| CS | 2015-07-02 14:15 |
Okinawa | Eef Information Plaza (Kumejima Is.) | [Invited Talk]
FPGA Implementation of NCSP-OFDM for Sidelobe Suppression Hikaru Kawasaki, Masaya Ohta, Katsumi Yamashita (Osaka Pref. Univ.) CS2015-18 |
$N$-continuous symbol padding OFDM (NCSP-OFDM) is a precoding technique that achieves a lower-sidelobe transmission sign... [more] | CS2015-18 pp.51-54 |
| AP, RCS (Joint) |
2014-11-12 14:10 |
Yamagata | Yamagata University, Yonezawa Campus | Open-Loop Approximate Block Diagonalization for Multiuser MIMO Communications with non-Gaussian Distributed Incedence Angles Shota Kubo, Kazuhiko Fukawa, Hiroshi Suzuki, Yuyuan Chang (Tokyo Tech) RCS2014-201 |
As a precoding scheme to suppress co-channel interference among users for multiuser MIMO mobile communications, an appro... [more] | RCS2014-201 pp.25-30 |
| RCS | 2014-10-16 09:30 |
Kanagawa | Keio Univ. | Single-Carrier Multi-User MIMO Applying Transmit Equalization and Tomlinson-Harashima Precoding in Time-Domain Shohei Yoshioka, Shinya Kumagai, Fumiyuki Adachi (Tohoku Univ.) RCS2014-156 |
In multi-user (MU) multiple-input multiple-output (MIMO) using Tomlinson-Harashima precoding (THP), 2-step signal proces... [more] | RCS2014-156 pp.1-6 |
| RCS | 2014-10-16 09:50 |
Kanagawa | Keio Univ. | Tomlinson-Harashima Precoding with Cholesky Decomposition for Multi-user MIMO Tatsuya Itakura, Satoshi Denno (Okayama Univ.) RCS2014-157 |
Multi-user Multiple Input Multiple Output (MIMO) is regarded as one of key techniques to increase system throughput in ... [more] |
RCS2014-157 pp.7-11 |
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