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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 148  /  [Next]  
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.)
(To be available after the conference date) [more]
RCS, SR, SRW
(Joint)
2024-03-13
14:15
Tokyo The University of Tokyo (Hongo Campus), and online
(Primary: On-site, Secondary: Online)
A Simple Channel Simulator and a Simple Channel Parameter Evaluation Scheme for Shalloiw Sea Environment of Underwater Acoustic Communications
Kouichi Hashimoto, Eiji Arita, Takaaki Shimomura, Ayano Kunimatsu, Taichi Fujita, Hiroshi Kubo (Ritsumeikan Univ.)
(To be available after the conference date) [more]
UWT
(2nd)
2024-01-29
13:00
Tokyo Tokai University Shinagawa Campus
(Primary: On-site, Secondary: Online)
Underwater Acoustic Channel Environment Evaluation Employing a Simple Doubly-Selective Shallow Sea Channel Model
Ayano Kunimatsu, Takaaki Shimomura, Kouichi Hashimoto, Taichi Fujita, Hiroshi Kubo (Ritsumeikan Univ.)
This paper derives channel parameters in severe doubly-selective underwater acoustic channel environments, assuming hori... [more]
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
13:50
Tokyo Tokai University Shinagawa Campus
(Primary: On-site, Secondary: Online)
OFDM transmisson method using Table Selection for Underwater Acoustic Communications
Takumi Yoshimura, Taichi Fujita, Hiroshi Kubo (Ritumeikan Univ.)
Underwater acoustic communications (UWAC) suffer from double selectivity, where doubly-selective channels suffer from se... [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
10:20
Miyagi
(Primary: On-site, Secondary: Online)
Experimental Results of a Channel Sounder for Underwater Acoustic Communications in Sharrow Sea Environment
Kouichi Hashimoto, Taichi Fujita, Takumi Yoshimura, Hiroshi Kubo (Ritsumeikan Univ.) IT2023-58 SIP2023-91 RCS2023-233
Doubly-selectivity of underwater acoustic communications (UWACs) can be measured by channel sounders, which estimate tim... [more] IT2023-58 SIP2023-91 RCS2023-233
pp.151-156
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
UWT
(2nd)
2023-11-27
14:50
Shiga Ritsumeikan University Biwako-Kusatsu Campus (BKC) [Invited Talk] A Channel Sounder for Underwater Acoustic Communications and its Experimental Results in Sharrow Sea Environment
Hiroshi Kubo, Kouichi Hashimoto, Taichi Fujita, Takumi Yoshimura (Ritsumeikan Univ.)
Doubly-selectivity of underwater acoustic communications (UWACs) can be measured by channel sounders, which estimate tim... [more]
UWT
(2nd)
2023-11-27
17:15
Shiga Ritsumeikan University Biwako-Kusatsu Campus (BKC) Multi-antenna Passband Channel Simulator for Underwater Acoustic Communications
Soma Sumita, Haruya Ikeda (Tokyo Univ. of Science), Daisuke Hisano (Osaka Univ.), Hiroshi Kubo (Ritsumeikan Univ.), Kazuki Maruta (Tokyo Univ. of Science)
Recently, research on underwater acoustic communication in Beyond 5G/6G has attracted much attention. Since the speed of... [more]
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
RCS, AP, UWT
(Joint)
2022-11-15
14:30
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
A Channel Sounder for Severe Doubly-Selective Channels of Underwater Acoustic Communications
Hiroshi Kubo, Kouichi Hashimoto, Taichi Fujita, Takumi Yoshimura (Ritsumeikan Univ.) RCS2022-161
Doubly-selectivity of underwater acoustic communications (UWAC) can be measured by channel sounders, which estimate time... [more] RCS2022-161
pp.37-42
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, AP, UWT
(Joint)
2022-11-16
11:00
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
[Invited Lecture] Wireless Transmission Technologies for Severe Doubly-Selective Channels of Underwater Acoustic Communications
Hiroshi Kubo, Taichi Fujita, Kouichi Hashimoto, Takumi Yoshimura (Ritsumeikan Univ.) AP2022-155 RCS2022-166
It is well-known that underwater acoustic communications (UWACs) plays an important role for underwater mobile communica... [more] AP2022-155 RCS2022-166
pp.45-50(AP), pp.67-72(RCS)
UWT
(2nd)
2022-06-20
15:05
Online Online Underwater Acoustic Communications from Mobile Radio Communication's Point of View
Hiroshi Kubo (Ritsumeikan Univ.)
This paper discusses channel environments and wireless transmission technologies of underwater acoustic communications (... [more]
RCS, SIP, IT 2022-01-20
10:55
Online Online Terrestrial Acoustic Communications Employing Transmit Precoding and Channel Interpolation
Katsuyoshi Yamamoto, Hiroshi Kubo (Ritsumeikan Univ.) IT2021-31 SIP2021-39 RCS2021-199
This paper proposes 72kbps terrestrial acoustic communications (TRAC) using commercial acoustic electronic equipment and... [more] IT2021-31 SIP2021-39 RCS2021-199
pp.18-23
RCS, SIP, IT 2022-01-20
11:20
Online Online A study on application of differential trellis-coded OFDM employing multiple differential detection with channel prediction
Kota Iwamoto, Hiroshi Kubo (Ritsumeikan Univ.) IT2021-32 SIP2021-40 RCS2021-200
This paper discusses differential orthogonal frequency division multiplexing (OFDM) for severe time and frequency select... [more] IT2021-32 SIP2021-40 RCS2021-200
pp.24-29
 Results 1 - 20 of 148  /  [Next]  
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