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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS | 2024-06-20 10:00 |
Okinawa | (Primary: On-site, Secondary: Online) |
A Study on Precoder Design in Time-Varying mmWave MIMO Detection via Expectation Propagation Tomoharu Furudoi, Takumi Takahashi (Osaka Univ.), Shinsuke Ibi (Doshisha Univ.), Hideki Ochiai (Osaka Univ.) |
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| RCS | 2024-06-20 10:10 |
Okinawa | (Primary: On-site, Secondary: Online) |
A Study on MCS Assignment Based on Vector Databasefor Massive Multi-User MIMO-OFDM Systems Fuga Kobayashi, Takumi Takahashi (Osaka Univ.), Sinsuke Ibi (Doshisha Univ.), Kazushi Muraoka, Takanobu Doi, Naoto Ishii (NEC), Hideki Ochiai (Osaka Univ.) |
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| RCS | 2024-06-20 10:20 |
Okinawa | (Primary: On-site, Secondary: Online) |
A Study on mmWave MIMO Detection via Belief Propagation for DA-QSM Keigo Masuoka, Takumi Takahashi (Osaka Univ.), Shinkuke Ibi (Doshisha Univ.), Hideki Ochiai (Osaka Univ.) |
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| RCS | 2024-06-20 16:30 |
Okinawa | (Primary: On-site, Secondary: Online) |
A Study on Sparse Bayesian Learning Using Complex Student's t Prior for Beam-domain Channel Estimation Kengo Furuta, Takumi Takahashi, Hideki Ochiai (Osaka Univ.) |
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| RCC, ISEC, IT, WBS | 2024-03-13 16:35 |
Osaka | Osaka Univ. (Suita Campus) | A Study on Polar Codes Design with Robustness against Channel SNR Fluctuation Hidetake Matsui, Hideki Ochiai (YNU)  IT2023-102 ISEC2023-101 WBS2023-90 RCC2023-84 |
Polar codes are known to achieve high reliability with low decoding complexity. The design of polar codes requires the s... [more] | IT2023-102 ISEC2023-101 WBS2023-90 RCC2023-84 pp.179-184 |
| RCC, ISEC, IT, WBS | 2024-03-14 14:40 |
Osaka | Osaka Univ. (Suita Campus) | Performance Evaluation of OFDM Systems with Clipping and Partial Filtering Wataru Hatano, Hideki Ochiai (YNU) IT2023-123 ISEC2023-122 WBS2023-111 RCC2023-105 |
[more] | IT2023-123 ISEC2023-122 WBS2023-111 RCC2023-105 pp.300-305 |
| RCC, ISEC, IT, WBS | 2024-03-14 15:05 |
Osaka | Osaka Univ. (Suita Campus) | Secrity Oriented Design of Polar-Coded OFDM on Selective Fading Channels Yuki Kuraya, Hideki Ochiai (YNU) IT2023-124 ISEC2023-123 WBS2023-112 RCC2023-106 |
We introduce a physical layer security scheme based on a polar-coded OFDM system in wireless communication. Our approach... [more] | IT2023-124 ISEC2023-123 WBS2023-112 RCC2023-106 pp.306-311 |
| RCS, SAT (Joint) |
2023-09-01 13:40 |
Nagano | Naganoken Nokyo Building, and online (Primary: On-site, Secondary: Online) |
Signal design of polar coded downlink NOMA satellite communication considering PAPR constraints Keita Ito, Yuto Hama, Hideki Ochiai (YNU) RCS2023-122 |
Non-terrestrial network(NTN), consisting of high altitude platform station(HAPS) along with conventional geostationary s... [more] | RCS2023-122 pp.101-106 |
| RCC, ISEC, IT, WBS | 2023-03-14 14:55 |
Yamaguchi | (Primary: On-site, Secondary: Online) |
A Study on Security Gap-Based Design of Polar Codes Hidetake Matsui, Toshiki Matsumine, Hideki Ochiai (Yokohama National Univ.) IT2022-84 ISEC2022-63 WBS2022-81 RCC2022-81 |
[more] | IT2022-84 ISEC2022-63 WBS2022-81 RCC2022-81 pp.103-108 |
| RCC, ISEC, IT, WBS | 2023-03-15 09:30 |
Yamaguchi | (Primary: On-site, Secondary: Online) |
A Study on Systematic Design of Geometric Shaping for BICM Systems Eito Kurihara, Hideki Ochiai (YNU) IT2022-117 ISEC2022-96 WBS2022-114 RCC2022-114 |
In this report, we investigate the application of geometric constellation shaping for standard BICM systems employing Gr... [more] | IT2022-117 ISEC2022-96 WBS2022-114 RCC2022-114 pp.313-318 |
| RCC, ITS, WBS | 2022-12-13 14:05 |
Shiga | Ritsumeikan Univ. BKC (Primary: On-site, Secondary: Online) |
* Masayuki Kaneko, Hideki Ochiai (YNU) WBS2022-36 ITS2022-12 RCC2022-36 |
We investigate low-complexity construction schemes for polar coded bit-interleaved coded modulation~(BICM) system ove... [more] |
WBS2022-36 ITS2022-12 RCC2022-36 pp.13-18 |
| RCC, ITS, WBS | 2022-12-13 16:45 |
Shiga | Ritsumeikan Univ. BKC (Primary: On-site, Secondary: Online) |
On Low-Complexity Construction of Polar-Coded OFDM System Over Frequency-Selective Fading Channels Yuki Kuraya, Hideki Ochiai (Yokohama National Univ.) WBS2022-41 ITS2022-17 RCC2022-41 |
We focus on design of polar codes with OFDM transmission over frequency-selective fading channels. In particular, we in... [more] |
WBS2022-41 ITS2022-17 RCC2022-41 pp.36-41 |
| RCC, ITS, WBS | 2022-12-14 13:15 |
Shiga | Ritsumeikan Univ. BKC (Primary: On-site, Secondary: Online) |
Characterization of Polar and LDPC codes in OFDM systems with BICM-ID Yoshiki Wakizaki, Hideki Ochiai (Yokohama National Univ.) WBS2022-47 ITS2022-23 RCC2022-47 |
BICM-ID (Bit-Interleaved Coded Modulation with Iterative Decoding) is a transmission scheme that detects transmitted inf... [more] | WBS2022-47 ITS2022-23 RCC2022-47 pp.71-76 |
| IT, ISEC, RCC, WBS | 2022-03-10 12:00 |
Online | Online | Bit-Labeling Optimization of BICM Systems for the Gaussian Wiretap Channel Toshiki Matsumine, Hideki Ochiai, junji shikata (Yokohama National Univ.) IT2021-98 ISEC2021-63 WBS2021-66 RCC2021-73 |
[more] | IT2021-98 ISEC2021-63 WBS2021-66 RCC2021-73 pp.95-100 |
| IT, ISEC, RCC, WBS | 2022-03-11 16:40 |
Online | Online | A study on SNR Mismatch in Successive Cancellation Decoding of Polar Codes Kosuke Ikeya, Hideki Ochiai (YNU) IT2021-137 ISEC2021-102 WBS2021-105 RCC2021-112 |
Polar codes have been proven to asymptotically achieve the capacity of arbitrary binary discrete memoryless communicatio... [more] | IT2021-137 ISEC2021-102 WBS2021-105 RCC2021-112 pp.313-318 |
| SR | 2022-01-25 15:45 |
Online | Online | Machine Learning-Based Adaptive Modulation and Coding with Generalized Mutual Information for Coded MIMO-OFDM Systems Haruhiko Hasegawa, Yuto Hama, Hideki Ochiai (Yokohama Natl Univ) SR2021-83 |
Adaptive modulation and coding (AMC) is a promising approach for enhancing the spectral efficiency and reliability by se... [more] | SR2021-83 pp.118-124 |
| WBS, IT, ISEC | 2021-03-04 13:20 |
Online | Online | [Poster Presentation]
Performance Evaluation of Secure Communication based on OFDM and DFT-Precoded OFDM over Fading Channel Airi Kaneko, Hideki Ochiai, Junji Shikata (YNU) IT2020-128 ISEC2020-58 WBS2020-47 |
We analyze the performance of a secure communication technique using OFDM and DFT-precoded OFDM signaling. Our approach ... [more] | IT2020-128 ISEC2020-58 WBS2020-47 pp.104-109 |
| RCS | 2019-06-19 16:25 |
Okinawa | Miyakojima Hirara Port Terminal Building | A Study on Multilevel Coded Modulation Based on CRC-Concatenated Polar Codes Yuki Yajima, Hideki Ochiai (Yokohama National Univ.) RCS2019-60 |
Polar codes are shown to approach the channel capacity as the codeword length increases, and the recent studies have s... [more] |
RCS2019-60 pp.137-142 |
| RCS | 2019-06-19 16:35 |
Okinawa | Miyakojima Hirara Port Terminal Building | On Bit LLR Design for Polar-Coded MIMO Spatial Multiplexing System Based on QRD-M Algorithm Shuhei Yamaguchi, Hideki Ochiai (Yokohama National Univ.) RCS2019-61 |
In order to improve bandwidth efficiency of wireless communications systems, MIMO techniques have been extensively studi... [more] | RCS2019-61 pp.143-148 |
| RCS | 2019-06-19 16:45 |
Okinawa | Miyakojima Hirara Port Terminal Building | On Application of Clipping and Filtering toa OFDM-IM Signals Kyoka Ujisawa, Hideki Ochiai (Yokohama National Univ.) RCS2019-62 |
The well-known drawback of orthogonal frequency division multiplexing with index modulation~(OFDM-IM) signals is its hi... [more] | RCS2019-62 pp.149-154 |
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