Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS, SR, SRW (Joint) |
2024-03-13 13:50 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
Performance Improvement for Differential OFDM in Shallow Sea Experiments of Underwater Acoustic Communications Taichi Fujita, Takaaki Shimomura, Kouichi Hashimoto, Takumi Yoshimura, Hiroshi Kubo (Ritsumeikan Univ.) RCS2023-261 |
The authors have been evaluating differential orthogonal frequency division multiplexing (OFDM) by means of the experime... [more] |
RCS2023-261 pp.42-47 |
UWT (2nd) |
2024-01-29 13:25 |
Tokyo |
Tokai University Shinagawa Campus (Primary: On-site, Secondary: Online) |
Wideband Differential OFDM for Acoustic Communications on Wideband Acoustic Channel Measurement Takaaki Shimomura, Kouichi Hashimoto, Taichi Fujita, Hiroshi Kubo (Ritsumeikan Univ.) |
Acoustic communications, e.g., underwater acoustic communications and terrestrial acoustic communications, generally use... [more] |
|
UWT (2nd) |
2024-01-29 14:15 |
Tokyo |
Tokai University Shinagawa Campus (Primary: On-site, Secondary: Online) |
Shallow-Water Experimental Evaluation of Differential OFDM Software MODEMs for Underwater Acoustic Communications Taichi Fujita, Kouichi Hashimoto, Takumi Yoshimura, Hiroshi Kubo (Ritsumeikan Univ.) |
It is well-known that underwater acoustic communications (UWACs) play an important role in underwater mobile communicati... [more] |
|
SIP, IT, RCS |
2024-01-19 10:55 |
Miyagi |
(Primary: On-site, Secondary: Online) |
Experimental Results of Differential OFDM for Underwater Acoustic Communications in Sharrow Sea Environment Taichi Fujita, Kouichi Hashimoto, Takumi Yoshimura, Hiroshi Kubo (Ritsumeikan Univ.) IT2023-59 SIP2023-92 RCS2023-234 |
It is well known that wireless transmission technologies employing spatial combining and adaptive equalization and those... [more] |
IT2023-59 SIP2023-92 RCS2023-234 pp.157-162 |
AP, RCS (Joint) |
2023-11-17 11:25 |
Kumamoto |
Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
[Encouragement Talk]
Differential OFDM for Underwater Acoustic Communications and its Experimental Results in Sharrow Sea Environment Hiroshi Kubo, Taichi Fujita, Kouichi Hashimoto, Takumi Yoshimura (Ritsumeikan Univ.) RCS2023-172 |
It is well-known that underwater acoustic communications (UWACs) play an important role for underwater mobile communicat... [more] |
RCS2023-172 pp.101-106 |
SR, UWT (Joint) |
2023-01-26 15:50 |
Tokyo |
Takanawa Campus, Tokai Univ. (Primary: On-site, Secondary: Online) |
Differential OFDM Software MODEMs for Underwater Acoustic Communications Taichi Fujita, Kouichi Hashimoto, Hiroshi Kubo (Ritsumeikan Univ.) |
It is well-known that underwater acoustic communications (UWACs) play an important role in underwater mobile communicati... [more] |
|
SR, UWT (Joint) |
2023-01-26 16:15 |
Tokyo |
Takanawa Campus, Tokai Univ. (Primary: On-site, Secondary: Online) |
Double Differential OFDM Employing Decision-Feedback Multiple Deferential Detection for Time-varying Doppler Shift Koki Toyoda, Hiroshi Kubo (Ritsumeikan Univ.) |
This paper discusses doubly differential orthogonal frequency division multiplexing (D2OFDM) for underwater acoustic com... [more] |
|
IT, RCS, SIP |
2023-01-25 14:10 |
Gunma |
Maebashi Terrsa (Primary: On-site, Secondary: Online) |
Differential OFDM with Parallel Blind Demodulation Employing Different Re-Samplers for Underwater Acoustic Communications Taichi Fujita, Hiroshi Kubo (Ritsumeikan Univ.) IT2022-63 SIP2022-114 RCS2022-242 |
Underwater acoustic communications (UWAC) suffer from double selectivity, where doubly-selective channels suffer from se... [more] |
IT2022-63 SIP2022-114 RCS2022-242 pp.196-201 |
OFT |
2023-01-19 15:35 |
Kyoto |
Campas Plaza Kyoto (Primary: On-site, Secondary: Online) |
Influence of Integral Circuit and AD Converter on Eye Pattern Observation Method of Nyquist WDM Signal Using Optical Correlation Detection Kohei Ikehata (Osaka Prefecture Univ.), Yuji Miyoshi, Hirokazu Kubota (Osaka Metropolitan Univ.) OFT2022-44 |
Optical signals used in optical communications are becoming wider band and faster as communication demand increases. In ... [more] |
OFT2022-44 pp.7-12 |
RCS, AP, UWT (Joint) |
2022-11-15 14:55 |
Fukuoka |
Kyushu University, and Online (Primary: On-site, Secondary: Online) |
Differential OFDM for Severe Doubly-Selective Channels of Underwater Acoustic Communications Hiroshi Kubo, Taichi Fujita, Kouichi Hashimoto, Takumi Yoshimura (Ritsumeikan Univ.) RCS2022-162 |
It is well known that wireless transmission technologies employing spatial combining and adaptive equalization and those... [more] |
RCS2022-162 pp.43-48 |
RCS |
2021-06-24 13:30 |
Online |
Online |
Comparison of Differential OFDM Systems Employing Multiple Differential Detection with Channel Prediction in Doubly Selective Channels Taichi Fujita, Kota Iwamoto, Hiroshi Kubo (Ritsumeikan Univ.) RCS2021-56 |
In this paper, we compare the performance of differential orthogonal frequency division multiplexing (OFDM) for underwat... [more] |
RCS2021-56 pp.163-168 |
RCS |
2021-06-24 13:40 |
Online |
Online |
A Transmission Efficiency Improvement Scheme for Software Acoustic MODEMs of Differential OFDM Koki Toyoda, Hiroshi Kubo (Ritsumeikan Univ.) RCS2021-57 |
This paper discusses differential orthogonal frequency division multiplexing (DOFDM) software modems for underwater acou... [more] |
RCS2021-57 pp.169-174 |
SAT, RCS (Joint) |
2020-08-21 15:35 |
Online |
Online |
Differential trellis-coded OFDM employing multiple differential detection with channel prediction for severe doubly-selective environment Kota Iwamoto, Tetsuro Kubo, Hiroshi Kubo (Ritsumeikan Univ.) RCS2020-89 |
This paper proposes differential trellis-coded orthogonal frequency division multiplexing (OFDM) for severe time and fre... [more] |
RCS2020-89 pp.55-60 |
SAT, RCS (Joint) |
2020-08-21 16:00 |
Online |
Online |
Basic characteristics of Differential OFDM Employing Decision-Feedback Multiple Differential Detection with Channel Prediction Hiroaki Osafune, Hiroshi Kubo (Ritsumeikan Univ.) RCS2020-90 |
OFDM (orthogonal frequency division multiplexing) is discussed as effective system for frequency selectivity. However, i... [more] |
RCS2020-90 pp.61-67 |
IT, SIP, RCS |
2020-01-24 09:55 |
Hiroshima |
Hiroshima City Youth Center |
Multi-Carrier Differential Trellis-Coded Modulation/Demodulation Employing Multiple Differential Detection with Channel Prediction Tetsuro Kubo, Takuya Takahashi, Hiroshi Kubo (Ritsumeikan Univ.) IT2019-61 SIP2019-74 RCS2019-291 |
This paper proposes a modulation scheme employing multi-carrier (MC) differential trellis-coded modulation (DTCM) and mu... [more] |
IT2019-61 SIP2019-74 RCS2019-291 pp.143-148 |
IT, SIP, RCS |
2020-01-24 12:35 |
Hiroshima |
Hiroshima City Youth Center |
Differential Orthogonal Frequency-Division Multiplexing Employing AFC for Time-Varying Doppler Shifts in Underwater Acoustic Communications Yui Nakai, Yuka Tanaka, Hiroshi Kubo (Ritsumeikan Univ.) IT2019-70 SIP2019-83 RCS2019-300 |
This paper proposes differential orthogonal frequency division multiplexing (OFDM) employing automatic frequency control... [more] |
IT2019-70 SIP2019-83 RCS2019-300 pp.197-202 |
IT, SIP, RCS |
2020-01-24 13:00 |
Hiroshima |
Hiroshima City Youth Center |
Performance of Doubly Differential OFDM Employing an Intercarrier Interference Self-Canceller for Underwater Acoustic Communications Yuka Tanaka, Yui Nakai, Hiroshi Kubo (Ritsumeikan Univ.) IT2019-71 SIP2019-84 RCS2019-301 |
This paper proposes doubly differential orthogonal frequency division multiplexing (OFDM) for underwater acoustic commun... [more] |
IT2019-71 SIP2019-84 RCS2019-301 pp.203-208 |
OCS, ITE-BCT, OFT, IEE-CMN [detail] |
2019-11-21 15:55 |
Yamaguchi |
Kaikyo-Messe-Shimonoseki |
Cut-off frequency dependence of N-OTDM signal de-multiplexing in correlation receiver using AIDD method. Shota Maeda, Yuji Miyoshi, Hirokazu Kubota (Osaka Prefecture Univ.) OCS2019-61 |
Recently, the Nyquist optical time division multiplexing (N-OTDM) transmission method have attracted attention in order ... [more] |
OCS2019-61 pp.25-28 |
RCS |
2019-06-21 10:00 |
Okinawa |
Miyakojima Hirara Port Terminal Building |
Double Differential OFDM Employing an Intercarrier Interference Self-Canceller for Underwater Acoustic Communications Yuka Tanaka, Yui Nakai, Hiroshi Kubo (Ritsumeikan Univ.) RCS2019-85 |
This paper proposes doubly differential orthogonal frequency division multiplexing (OFDM) for underwater acoustic commun... [more] |
RCS2019-85 pp.279-284 |
RCS |
2019-06-21 10:10 |
Okinawa |
Miyakojima Hirara Port Terminal Building |
Differential Trellis-Coded Modulation Employing Multiple Differential Detection with Channel Prediction Tetsuro Kubo, Takuya Takahashi, Hiroshi Kubo (Ritsumeikan Univ.) RCS2019-86 |
This paper discusses transmission technologies with good tracking capability and good required signal to noise ratio (SN... [more] |
RCS2019-86 pp.285-290 |