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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SeMI | 2022-01-21 09:40 |
Nagano | (Primary: On-site, Secondary: Online) |
[Short Paper]
Study of ACK-Less Rate Adaptation for IEEE 802.11bc Using Deep Reinforcement Learning Takamochi Kanda (Kyoto Univ.), Yusuke Koda (Univ. of Oulu), Yuto Kihira, Koji Yamamoto (Kyoto Univ.), Takayuki Nishio (Kyoto Univ./Tokyo Tech.)  SeMI2021-74 |
This paper introduces an ACK-less rate adaptation to locational variation of recipient stations (STAs) for broadcast wir... [more] | SeMI2021-74 pp.86-88 |
| SeMI, RCS, NS, SR, RCC (Joint) |
2019-07-10 15:20 |
Osaka | I-Site Nanba（Osaka） | A Study on Concatenated Beam- and Antenna- domain Layered BP for Large MIMO Detection Takumi Takahashi (Osaka Univ.), Antti Tolli (Univ. of Oulu), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka Univ.) RCC2019-15 NS2019-48 RCS2019-105 SR2019-24 SeMI2019-24 |
This paper proposes a concatenated beam- and antenna-domain belief propagation (BP) for realizing low-complexity large m... [more] | RCC2019-15 NS2019-48 RCS2019-105 SR2019-24 SeMI2019-24 pp.21-26(RCC), pp.31-36(NS), pp.25-30(RCS), pp.31-36(SR), pp.35-40(SeMI) |
| SeMI, RCS, NS, SR, RCC (Joint) |
2019-07-11 09:35 |
Osaka | I-Site Nanba（Osaka） | A study on Auto-Regressive modeling of Duty Cycle Kohei Okawa, Hiroki Iwata, Kenta Umebayashi (Tokyo Univ. of Agriculture and Tech.), Janne Lehtomäki (Univ. of Oulu), Miguel López-Benítez (Univ. of Liver), Satya Joshi (Univ. of Oulu) SR2019-29 |
In dynamic spectrum sharing, it is useful to exploit statistical information on spectrum usage. In this paper, we inve... [more] |
SR2019-29 pp.59-64 |
| RCS | 2019-04-19 10:20 |
Hokkaido | Noboribetsu Grand Hotel | Channel Estimation Using Long-term Channel Statistics for BP-based Large MIMO Detection Takumi Takahashi (Osaka Univ.), Antti Tolli (Univ. of Oulu), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka Univ.) RCS2019-15 |
This paper proposes a novel de-noising method for realizing low-complexity channel estimation using long-term channel st... [more] | RCS2019-15 pp.67-72 |
| RCS, SR, SRW (Joint) |
2019-03-06 10:30 |
Kanagawa | YRP | A Study on Layered Belief Propagation for Large MIMO Detection based on Statistical Beams Takumi Takahashi (Osaka Univ.), Antti Tolli (Univ. of Oulu), Shinsuke Ibi, Seiichi Sampei (Osaka Univ.) RCS2018-285 |
This paper proposes a novel layered belief propagation (BP) detector with a concatenated structure of two different BP l... [more] | RCS2018-285 pp.19-24 |
| SR | 2018-05-25 10:00 |
Tokyo | Tokyo big sight | [Technology Exhibit]
Development of Spectrum Usage Measurement System Prototype for Smart Spectrum Access
-- Prediction of Spectrum Occupancy -- Hiroki Iwata, Kenta Umebayashi, Ryo Sato, Kento Yamada, Kohei Okawa, Yoshiki Kasahara (TUAT), Janne Lehtomaki (Univ. of Oulu), Miguel Lopez-Benitez (Univ. of Liverpool) SR2018-17 |
Smart spectrum access (SSA) can achieve a high-efficient spectrum sharing utilizing the prior information regarding spec... [more] | SR2018-17 pp.99-106 |
| RCS, SR, SRW (Joint) |
2018-03-02 10:50 |
Kanagawa | YRP | Spectrum usage model for Smart Spectrum Access Kento Yamada, Kenta Umebayashi (TUAT), Janne Lehtomaki, Shashika Manosha Kapuruhamy Badalge (Univ. of Oulu) SR2017-133 |
In a smart spectrum access, the statistical information in terms of spectrum usage can enhance a spectrum sharing dramat... [more] | SR2017-133 pp.109-116 |
| SR | 2018-01-26 09:30 |
Fukuoka | Fukuoka univ. | A study on parameter setting of Welch FFT-Energy Detection in Spectrum Measurement Yoshitaka Tamaki, Kenta Umebayashi (Tokyo Univ. of Agriculture and Technology), Janne Lehtomaki (Univ. of Oulu), Miguel Lopez-Benitez (Univ. of Liverpool) SR2017-100 |
Dynamic Spectrum Access (DSA) can be enhanced by statistical information of actual spectrum usage. The information is av... [more] | SR2017-100 pp.35-42 |
| RCS | 2017-10-19 09:20 |
Miyagi | Tohoku Institute of Technology | Antenna spacing control for adaptive array antenna based on weight and antenna spacing control Yoshimasa Kimoto, Kenta Umebayashi (TUAT), Antti Tolli (Univ. of Oulu) RCS2017-169 |
[more] | RCS2017-169 pp.7-12 |
| RCS, RCC, ASN, NS, SR (Joint) |
2016-07-20 15:50 |
Aichi | A Study on Design of Non-uniform Linear Antenna Array based on Antenna Selection Yoshinobu Makino, Kenta Umebayashi (TUAT), Antti Tolli (Univ. of Oulu) RCS2016-99 |
In interference suppression based on beamforming with array antenna, the possible number of interference waves to be sup... [more] | RCS2016-99 pp.29-34 |
|
| SR, RCC, MICT, RCS, SRW (Joint) (2nd) |
2016-05-16 - 2016-05-17 |
Overseas | Hotel Lasaretti, Oulu, Finland | [Requested Talk] Nokia vision on 5G Jari Hulkkonen (Nokia), Olli Liinamaa (Nokia and Univ. of Oulu) |
5G is the new generation of radio systems and network architecture delivering extreme broadband and ultra robust, low la... [more] | |
| SR, SRW (Joint) |
2016-05-16 14:30 |
Overseas | Hotel Lasaretti, Oulu, Finland | [Poster Presentation]
A study on FFT-ED based signal area estimation for spectrum awareness Riki Mizuchi, Kenta Umebayashi (TUAT), Janne Lehtomaki (Univ. of Oulu), Miguel Lopez-Benitez (Univ. of Liverpool) SR2016-9 SRW2016-9 |
For achieving 2-layer smart spectrum access (SSA) which corresponds to feasible strategy of DSA, a development of spectr... [more] | SR2016-9 SRW2016-9 pp.27-34 |
| SR, RCC, MICT, RCS, SRW (Joint) (2nd) |
2016-05-16 - 2016-05-17 |
Overseas | Hotel Lasaretti, Oulu, Finland | [Poster Presentation]
Advanced FPGA/ASIC Development Teemu Aura, Olga Kayo (Nokia), Jukka Lahti, Janne Janhunen (Univ. of Oulu) |
Novel 5G innovations and technologies are rapidly coming into market. One of the main requirement for the new systems is... [more] | |
| SR | 2016-01-21 13:00 |
Nagasaki | Fukue-bunka-kaikan | Analysis of low-cost Welch FFT segment size selection method for spectrum usage measurement Hiroki Iwata, Kenta Umebayashi (TUAT), Janne Lehtomaki (Univ. of Oulu), Yasuo Suzuki (TUAT) SR2015-72 |
Smart Spectrum Access (SSA), which is an advanced Dynamic Spectrum Access (DSA) exploits any statistical information of ... [more] | SR2015-72 pp.1-8 |
| SR | 2016-01-21 13:25 |
Nagasaki | Fukue-bunka-kaikan | A study on threshold setting for spectrum sensing based on spectrum utilization rate Kazuhiro Hayashi, Kenta Umebayashi (TUAT), Janne Lehtomaki (Univ. of Oulu), Yasuo Suzuki (TUAT) SR2015-73 |
In this paper, we investigate threshold setting for spectrum sensing based on statistics of spectrum usage for spectrum ... [more] | SR2015-73 pp.9-15 |
| SR | 2016-01-22 14:20 |
Nagasaki | Fukue-bunka-kaikan | A study on parameter setting method of false alarm removal for spectrum awareness Riki Mizuchi, Kenta Umebayashi (TUAT), Janne Lehtomaki (Univ. of Oulu), Miguel Lopez-Benitez (Univ. of Liverpool), Yasuo Suzuki (TUAT) SR2015-87 |
In dynamic spectrum access, statistical information of Primary User (PU) enables more reliable and efficient spectrum sh... [more] | SR2015-87 pp.101-108 |
| SR, SRW (Joint) (2nd) |
2015-10-26 09:20 |
Tokyo | KKE | [Tutorial Lecture]
Spectrum Measurement and Modeling for Spectrum Awareness in Cognitive Wireless Systems Kenta Umebayashi (TUAT), Miguel López-Benítez (Univ. of Liverpool), Janne Lehtomaki (Univ. of Oulu), Samuli Tiiro (TUAT) |
[more] | |
| SR, SRW (Joint) (2nd) |
2015-10-27 09:30 |
Tokyo | KKE | [Poster Presentation]
Achieving Cooperation in Inter-operator Infrastructure Sharing Keigo Hasegawa (Hitachi Kokusai Electric/Univ. of Oulu), Zaheer Khan (Univ. of Oulu), Kenta Umebayashi (TUAT), Alhussein Abouzeid (RPI/Univ. of Oulu), Matti Latva-aho (Univ. of Oulu) |
Infrastructure sharing is considered a potential cost-effective solution for solving the overflow demand problem in cell... [more] | |
| RCS | 2015-06-26 10:53 |
Hokkaido | Hokkaido Univ. | Derivation of Non-uniform Linear Array Arrangement for Interference Suppression under Line-of-Sight Propagation Yoshinobu Makino, Kenta Umebayashi (TUAT), Antti Tolli (Univ. of Oulu), Yasuo Suzuki (TUAT) RCS2015-93 |
In this paper, we investigate a low-complexity method for linear array antenna arrangement to suppress interference usin... [more] | RCS2015-93 pp.275-280 |
| SR | 2015-01-30 13:50 |
Hokkaido | KKR Hakodate | Welch FFT segment size selection method for Duty Cycle estimation Hiroki Iwata, Kenta Umebayashi, Samuli Tiiro (TUAT), Janne Lehtomaki (Univ. of Oulu), Yasuo Suzuki (TUAT) SR2014-110 |
In dynamic spectrum access (DSA) and the scenario with dynamic primary user (PU), spectrum sensing with reasonably low c... [more] | SR2014-110 pp.101-108 |
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