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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| PN | 2024-03-15 09:00 |
Kagoshima | (Primary: On-site, Secondary: Online) |
Research on QAM symbol block cipher using space-time digital key transformation Reika Suketomo, Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.)  PN2023-76 |
We have shown by simulation that a spatial-temporal spreading key encryption with spatial digital key transformation(DKX... [more] | PN2023-76 pp.37-41 |
| UWT (2nd) |
2024-01-29 16:40 |
Tokyo | Tokai University Shinagawa Campus (Primary: On-site, Secondary: Online) |
Estimation of the modulation method ratio for time-domain hybrid PAM signals using machine learning Ayumu Kariya, Fumiya Kobori, Keita Tanaka, Takahiro Kodama (Kagawa Univ.) |
We propose a transmission capacity estimation method for time-domain hybrid PAM schemes with variable transmission capac... [more] | |
| PN | 2023-08-29 10:05 |
Hokkaido | (Primary: On-site, Secondary: Online) |
Optical fiber long-distance multi-repeater transmission experiment of phase-shifted symbol-preserving encrypted polarization-multiplexed QAM signals Reika Suketomo, Yuika Mori, Hodaka Amano, Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.) PN2023-16 |
We have demonstrated that phase-shifted symbol-preserving encryption does not cause excessive degradation in 7 ch WDM 32... [more] | PN2023-16 pp.1-5 |
| 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 |
| HCS | 2023-03-02 12:30 |
Shizuoka | Tokoha University（KusanagiCampus） (Primary: On-site, Secondary: Online) |
Sound Signal Generation for the Visually Impaired to Recognize the Scenery Using Music
-- Depth Information with LIDAR and the Expression by Sound Level and Frequence Modulation -- Naoki Aoyama (Osaka City Univ.), Shigeyoshi Nakajima, Tetsuo Tsujioka, Ikuo Oka, Hitoshi Watanabe (Osaka Metropolitan Univ.), Natsumi Kudo (Osaka City Univ.) HCS2022-80 |
In this paper, we propose a system that converts depth information with LIDAR into acoustic signals by sound level or fr... [more] | HCS2022-80 pp.23-28 |
| SP, IPSJ-SLP, EA, SIP [detail] | 2023-03-01 09:30 |
Okinawa | (Primary: On-site, Secondary: Online) |
Texture Reproduction of Ultrasonic Mid-Air Haptics Based on Amplitude Modulation Signal Generation Using Fricative Sounds Feature Extraction and Hand Tracking Asuto Ueda, Toru Takahashi, Masato Nakayama (Osaka Sangyo Univ.) EA2022-104 SIP2022-148 SP2022-68 |
We have proposed a method to reproduce the texture of an object by recording and analyzing the fricative sounds of the o... [more] | EA2022-104 SIP2022-148 SP2022-68 pp.171-176 |
| IE, ITS, ITE-MMS, ITE-ME, ITE-AIT [detail] | 2023-02-21 13:15 |
Hokkaido | Hokkaido Univ. | Noninterferometric detection by the transport of intensity equation method for a phase- and amplitude-modulated signal beam generated by a phase-SLM Taishi Miwa, Tomohiro Nishimura, Masatoshi Bunsen (Fukuoka Univ.) |
Complex amplitude modulation, in which both the amplitude and phase of the signal beam are modulated, has been attractin... [more] | |
| OCS, CS (Joint) |
2023-01-13 15:10 |
Fukuoka | CANAL CITY HAKATA (Primary: On-site, Secondary: Online) |
An eavesdropping model for constellation-preserving simple symbol encryption and its evaluation Keiji Shimada, Takahiro Kodama (Kagawa Univ.) OCS2022-67 |
We have proposed constellation-preserving simple symbol encryption that keeps the arrangement of symbol points containin... [more] | OCS2022-67 pp.39-44 |
| PN | 2022-11-07 16:45 |
Kochi | (Primary: On-site, Secondary: Online) |
[Invited Talk]
Underwater Visible Light Wireless Communications Takahiro Kodama (Kagawa Univ.) PN2022-27 |
In this paper, we describe the technology that our organization is working on for underwater optical wireless in shallow... [more] | PN2022-27 pp.32-38 |
| OFT | 2022-10-13 10:50 |
Kanagawa | Kanagawa-Kenmin Center (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Noise reduction technique for amplitude-modulated optical soliton transmission considering wavelength dispersion of optical fiber Kazuki Sakamoto, Hirokazu Kubota, Yuji Miyoshi (Osaka Metropolitan Univ.) OFT2022-28 |
Research and development related to Beyond 5G, the next generation of fifth-generation mobile communication systems (5G)... [more] | OFT2022-28 pp.39-42 |
| WIT, IPSJ-AAC | 2022-03-09 13:25 |
Online | Online | Development of Guidance System for the Blind Using a Pair of Pickup Coil Kouhei Komine, Kazuhisa Ito (Shibaura Inst. of Tech.) WIT2021-54 |
The braille blocks support the blinds with cane to walk public road safe. The block has uneven surface to tell them the ... [more] | WIT2021-54 pp.65-70 |
| EA, SIP, SP, IPSJ-SLP [detail] | 2022-03-01 09:20 |
Okinawa | (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Amplitude modulation on high frequency noise induced by non-stationary audio system and its effect in audible range Masahide Kita, Shinichi Miyamoto, Yukiyasu Okamura, Kiminobu Nishimura (Kindai Univ.) EA2021-66 SIP2021-93 SP2021-51 |
In a linear-stationary audio, as frequency components of signal are independent each other, an effect of noise in supers... [more] | EA2021-66 SIP2021-93 SP2021-51 pp.15-20 |
| PN | 2022-03-02 09:50 |
Online | Online | Initial study of pseudo-phase noise-based symbol masked polarization-multiplexed M-QAM signal using a time-spreading encryption key Keiji Shimada, Mizuki Inagaki, Takahiro Kodama (Kagawa Univ.) PN2021-70 |
In recent years, a common key cryptosystem for the physical layer has been introduced in digital signals to keep the dat... [more] | PN2021-70 pp.92-97 |
| PN | 2022-03-02 15:55 |
Online | Online | Application of polarization-independent subtractive interference cancellation algorithm for same-band and bidirectional coherent communication Mizuki Inagaki, Takahiro Kodama (Kagawa Univ.) PN2021-84 |
When a single core and the same band bidirectional transmission is performed in a passive optical network (PON) for mobi... [more] | PN2021-84 pp.169-173 |
| PN | 2022-03-02 16:35 |
Online | Online | Evaluation of the optimum modulation arrangement in a time frame for TDHP signal with same generation ratio of PAM2/PAM4 Fumiya Kobori, Keita Tanaka, Takahiro Kodama (Kagawa Univ.) PN2021-86 |
For underwater optical wireless communication system using the visible light wavelength band single-carrier-method, whic... [more] | PN2021-86 pp.180-184 |
| OCS, CS (Joint) |
2022-01-14 11:00 |
Yamaguchi | Conference room 204A・B at KDDI Ishin-hall (Primary: On-site, Secondary: Online) |
Study of the Amount of Mutual Information of Secure Polarization Multiplexed M-QAM Signal with Symbol Placement Retention Masking Method Keiji Shimada, Mizuki Inagaki, Takahiro Kodama (Kagawa Univ.) OCS2021-36 |
In recent years, optical communication transceivers have been required to have high confidentiality for data. A shared k... [more] | OCS2021-36 pp.16-21 |
| PN | 2021-08-31 14:50 |
Online | Online | Evaluation of power adaptive IQ multiplexed 16QAM method for downlink transmission of coherent PON system Mizuki Inagaki (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.) PN2021-24 |
In the downlink transmission of a coherent PON system using QAM modulation, when IQ multiplexing, which allocates I-axis... [more] | PN2021-24 pp.69-73 |
| PN, NS, OCS (Joint) |
2021-06-25 15:50 |
Online | Online | Study of the Effect on Soft-decision Decoding of the Coherent M-QAM using Multi-stage symbol Placement Retention Masking Keiji Shimada, Masahiro Misumi, Takahiro Kodama (Kagawa Univ.) OCS2021-8 |
In recent digital coherent optical communication systems, to keep data highly confidential, research is being conducted ... [more] | OCS2021-8 pp.35-39 |
| OFT | 2021-01-15 15:25 |
Online | Online | Input power and modulation frequency dependence of fiber fuse initiation suppression by amplitude modulation Daiki Shimokura, Yuya Sugimoto, Kenji Kurokawa (KIT) OFT2020-54 |
We studied suppression characteristics of fiber fuse initiation by amplitude modulation (AM) of the input light in SMF a... [more] | OFT2020-54 pp.47-50 |
| ITE-HI, IE, ITS, ITE-MMS, ITE-ME, ITE-AIT [detail] | 2020-02-28 13:30 |
Hokkaido | Hokkaido Univ. (Cancelled but technical report was issued) |
Basic experiment on single-shot detection of SQAM signal beam by transport-of-intensity equation method Soichiro Sumida, Masatoshi Bunsen (Fukuoka Univ.) |
Spatial quadrature amplitude modulation (SQAM) method which modulates intensity and phase of a signal beam, is a techniq... [more] | |
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