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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT | 2023-10-12 10:10 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Detection of Airborne Ultrasound through Modulation of Refractive Index of Air using Sagnac Interferometer Wang Zijian, Kentaro Nakamura (Tokyo Tech)  OFT2023-23 |
Applications of airborne ultrasound have been spreading recently for the purpose of sensing such as short-range SONAR fo... [more] | OFT2023-23 pp.31-34 |
| SR | 2023-05-11 10:20 |
Hokkaido | Center of lifelong learning Kiran (Higashi Muroran) (Primary: On-site, Secondary: Online) |
Time Frame Design and Evaluation of the Number of Transmittable Bits for Differential Packet-Level Index Modulation Hitoshi Yamasaki, Mai Ohta (Fukuoka Univ.), Hiroki Matsuura (NATANE eICT Lab.), Makoto Taromaru (Fukuoka Univ.) SR2023-3 |
LPWA is a communication method used in IoT and other applications. The communication time constraints (called duty cycle... [more] | SR2023-3 pp.16-22 |
| SR | 2022-11-07 12:10 |
Fukuoka | Fukuoka University (Primary: On-site, Secondary: Online) |
[Invited Talk]
Implementation of Packet Level-Index Modulation Mai Ohta (Fukuoka Univ.), Takeo Fujii, Koich Adachi (UEC), Osamu Takyu (Shinsyu Univ.) SR2022-50 |
Packet-Level Index Modulation (PLIM) for Low Power Wide Area (LPWA) as a method to increase the number of transmitted bi... [more] | SR2022-50 p.29 |
| MIKA (3rd) |
2022-10-14 10:40 |
Niigata | Niigata Citizens Plaza (Primary: On-site, Secondary: Online) |
[Poster Presentation]
OFDM/PM Systems with Adaptive Filtering for Satellite Communications Tuguldur Ulambayar, Masato Saito (Ryukyu Univ.) |
OFDM/PM (Orthogonal Frequency Division Multiplexing/Phase Modulation), also known as CE (Constant Envelope)-OFDM is an a... [more] | |
| SAT, KOSST | 2022-10-07 11:20 |
Fukuoka | (Primary: On-site, Secondary: Online) |
BER performance evaluation of OFDM/PM system with Constant Modulus Algorithm based adaptive filtering Tuguldur Ulambayar, Masato Saito (Ryukyu Univ.) SAT2022-51 |
OFDM/PM (Orthogonal Frequency Division Multiplexing/Phase Modulation), an alternative modulation approach to OFDM, is ab... [more] | SAT2022-51 pp.36-41 |
| SAT, RCS (Joint) |
2022-08-26 10:40 |
Hokkaido | (Primary: On-site, Secondary: Online) |
Channel Activity Detection Based Index Mapping Scheme for Packet-Level Index Modulation Kosuke Suzuki, Koichi Adachi (UEC), Mai Ohta (Fukuoka Univ.), Osamu Takyu (Shinshu Univ.), Takeo Fujii (UEC) RCS2022-122 |
Long range wide area network (LoRaWAN) attracts attention due to its ability to realize massive machine-type communicati... [more] | RCS2022-122 pp.144-149 |
| NS, SR, RCS, SeMI, RCC (Joint) |
2022-07-15 15:20 |
Ishikawa | The Kanazawa Theatre + Online (Primary: On-site, Secondary: Online) |
Packet-level Index Modulation under Duty Cycle constraints Ryogo Oya, Shinichiro Kakuda, Takeo Fujii (UEC), Osamu Takyu (Shinshu Univ.), Mai Ohta (Fukuoka Univ.), Koichi Adachi (UEC) SR2022-44 |
Low power wide area (LPWA) is an important technology in the field of the Internet of Things (IoT) because of its low co... [more] | SR2022-44 pp.110-115 |
| RCS, NS (Joint) |
2021-12-16 11:00 |
Nara | Nara-ken Bunka Kaikan and Online (Primary: On-site, Secondary: Online) |
Flexible Index Mapping Scheme for Packet-Level Index Modulation Kosuke Suzuki, Koichi Adachi (UEC), Mai Ohta (Fukuoka Univ.), Osamu Takyu (Shinshu Univ.), Takeo Fujii (UEC) RCS2021-176 |
Long range wide area network (LoRaWAN) attracts attention due to its ability to realize massive machine-type communicati... [more] | RCS2021-176 pp.7-12 |
| AP, RCS (Joint) |
2021-11-12 11:45 |
Nagasaki | NBC-Bekkan (Nagasaki) (Primary: On-site, Secondary: Online) |
A Study on Generalized Time-Frequency Spatial Modulation System Tomoya Aoyama, Hou Yafei, Satoshi Denno (Okayama Univ) RCS2021-171 |
In recent years, with the proliferation of wireless devices such as smartphones, commercial services of the 5th generati... [more] | RCS2021-171 pp.148-153 |
| SR | 2021-11-04 10:55 |
Online | Online | Study on Differential Packet-Level Index Modulation for LPWA Mai Ohta (Fukuoka Univ.), Takeo Fujii (UEC) SR2021-44 |
In this study, packet-level index modulation (PLIM) method for LPWA (Low Power Wide Area) system is focused. The PLIM ha... [more] | SR2021-44 pp.25-30 |
| RCS, SR, NS, SeMI, RCC (Joint) |
2021-07-16 10:30 |
Online | Online | Channel capacity for a model of Packet level Index Modulation considering Erasure probability Riku Yamabe, Mikihiko Nishiara, Osamu Takyu (Shinshu Univ) SR2021-33 |
Packet level index modulation is a modulation scheme that can expand the transmission capacity without changing the exis... [more] | SR2021-33 pp.61-66 |
| SIP, IT, RCS | 2021-01-21 14:00 |
Online | Online | Channel capacity for a model of Packet level Index Modulation in LPWA Networks Riku Yamabe, Mikihiko Nishiara, Osamu Takyu (Shinshu Univ.) IT2020-84 SIP2020-62 RCS2020-175 |
Packet level Index Modulation is a modulation method that can expand the transmission capacity without changing the exis... [more] | IT2020-84 SIP2020-62 RCS2020-175 pp.113-118 |
| EA, ASJ-H | 2019-08-09 10:30 |
Miyagi | Tohoku Univ. | Study on Robust Method for Blindly Estimating Speech Transmission Index using Convolutional Neural Network with Temporal Amplitude Envelope Suradej Doungpummet (JAIST), Jessada Karunjana (NASDA), Waree Kongprawechnon (SIIT), Masashi Unoki (JAIST) EA2019-30 |
We have developed a robust scheme for blindly estimating speech transmission index (STI) in noisy reverberant environmen... [more] | EA2019-30 pp.47-52 |
| WBS, MICT | 2019-07-16 12:30 |
Ibaraki | Ibaraki University(Mito Campus) | [Poster Presentation]
Performance Improvement of PAPR Reduction Method Using Dither Signal in OFDM-IM Shinya Watanabe, Teruyuki Miyajima, Yoshiki Sugitani (Ibaraki Univ.) WBS2019-10 MICT2019-11 |
In this paper, we consider a performance improvement of PAPR reduction method using a dither sig- nal in OFDM-IM systems... [more] | WBS2019-10 MICT2019-11 pp.1-6 |
| PN, EMT, OPE, EST, MWP, LQE, IEE-EMT [detail] | 2019-01-17 10:30 |
Osaka | Osaka University Nakanoshima Center | Active tuning of effective refractive index based on relative displacement of double-layered closed-ring resonator arrays Yuki Watanabe, Tatsunosuke Matsui (Mie Univ.) PN2018-33 EMT2018-67 OPE2018-142 LQE2018-152 EST2018-80 MWP2018-51 |
Metamaterials, which can show novel optical functionalities beyond conventional optics, has been actively studied in rec... [more] | PN2018-33 EMT2018-67 OPE2018-142 LQE2018-152 EST2018-80 MWP2018-51 pp.13-18 |
| LQE, OPE, SIPH | 2018-12-06 17:10 |
Tokyo | Keio University | Numerical design of MQW with enhanced polarization-dependent phase shift for efficient Stokes-vector modulator Peng Zhou, Yoshiaki Nakano, Takuo Tanemura (Univ. Tokyo) OPE2018-117 LQE2018-127 SIPH2018-33 |
We propose to use InGaAsP three-step asymmetric coupled multiple quantum wells (MQWs) based phase shifter to obtain enha... [more] | OPE2018-117 LQE2018-127 SIPH2018-33 pp.97-101 |
| OFT | 2018-10-11 16:00 |
Miyagi | Touhoku Univ. | [Poster Presentation]
Simple and accurate Bragg wavelength demodulation method in multimode plastic FBGs Tianyi Ma, Ryo Ishikawa, Heeyoung Lee (Tokyo Tech), Antreas Theodosiou, Kyriacos Kalli (CUT), Yosuke Mizuno, Kentaro Nakamura (Tokyo Tech) OFT2018-42 |
For strain sensing applications, we develop a simple and accurate demodulation method for fiber Bragg gratings (FBGs) in... [more] | OFT2018-42 pp.133-136 |
| ASN, NS, RCS, SR, RCC (Joint) |
2018-07-13 16:15 |
Hokkaido | Hakodate Arena | Aggregate-Compression-Aided Subcarrier IQ Index Modulation with Discreteness-Aware Approximate Message Passing Kazuya Ohira, Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2018-128 |
In this paper, we propose aggregate-compression-aided subcarrier in-phase/quadrature phase index modulation (AC-SIQIM). ... [more] | RCS2018-128 pp.243-248 |
| RCS | 2018-06-21 11:00 |
Nagasaki | Nagasaki University | Compressed-Sensing-Aided Subcarrier IQ Index Modulation with Discreteness-Aware Fast Iterative Shrinkage-Thresholding Algorithm Kazuya Ohira, Koji Ishibashi (The Univ. of Electro-Communications), Lajos Hanzo (Univ. of Southampton) RCS2018-51 |
In this paper, we propose compressed-sensing (CS)-aided subcarrier in-phase/quadrature-phase index modulation (SIQIM) wi... [more] | RCS2018-51 pp.95-100 |
| SR | 2018-01-25 16:20 |
Fukuoka | Fukuoka univ. | [Invited Talk]
An Epidemic of Spatial Modulation and Its Historical Background over the Past 50 Years Naoki Ishikawa (Hiroshima City Univ.) SR2017-99 |
In this paper, a spatial modulation principle is introduced along with its historical background over the past five deca... [more] | SR2017-99 pp.29-34 |
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