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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 1284  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCC, ISEC, IT, WBS 2024-03-13
- 2024-03-14
Osaka Osaka Univ. (Suita Campus) A selection method of candidate constellation for the superimposed QAM signal method to reduce PAPR in OFDM system
Takashi Aoki, Tsuyoshi Arai, Hiroshi Inai, Hideaki Wakabayashi (Okayama Prefectural Univ.) IT2023-122 ISEC2023-121 WBS2023-110 RCC2023-104
Modulated signal of Orthogonal Frequency Division Multiplexing (OFDM) systems tend to have a large peak-to-average power... [more] IT2023-122 ISEC2023-121 WBS2023-110 RCC2023-104
pp.294-299
RCC, ISEC, IT, WBS 2024-03-13
- 2024-03-14
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, 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
RCS, SR, SRW
(Joint)
2024-03-14
10:25
Tokyo The University of Tokyo (Hongo Campus), and online
(Primary: On-site, Secondary: Online)
Study on improving frequency usage efficiency using baseband MIMO method aiming at 5G expansion(2) -- MxN times communication method using real MIMO and baseband MIMO --
Maria Takigawa (Meiji Univ.), Gen-ichiro Ohta (YRP), Tetsushi Ikegami (Meiji Univ.) RCS2023-272
In this study, the spectrum efficiency is multiplied by M×N by superimposing MIMO in real space (rank M) and baseband MI... [more] RCS2023-272
pp.106-111
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 2024-01-18
15:20
Miyagi
(Primary: On-site, Secondary: Online)
Performance Analysis of Multi-User Asynchronous Transmission for OFDM Modulation
Tomoya Machiyama, Hideki Yagi (UEC) IT2023-50 SIP2023-83 RCS2023-225
Packet collisions in uplink communications are the main cause of capacity limitation in communication channels. Since 5G... [more] IT2023-50 SIP2023-83 RCS2023-225
pp.105-108
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
SIP, IT, RCS 2024-01-19
14:55
Miyagi
(Primary: On-site, Secondary: Online)
Performance of the Joint PAPR Reduction Method Using Null Space in Channel for MIMO-OFDM Signals and Predistortion Techniques in Multiple-Antenna AF-type Relay Transmission
Asuka Kakehashi, Kenichi Higuchi (Tokyo Univ. of Science) IT2023-69 SIP2023-102 RCS2023-244
The combination of the peak-to-average power ratio (PAPR) reduction and predistortion (PD) technique removes the nonline... [more] IT2023-69 SIP2023-102 RCS2023-244
pp.211-216
ITS, WBS, RCC 2023-12-21
15:15
Okinawa
(Primary: On-site, Secondary: Online)
Throughput increase method in Optical wireless OFDM system using precoding matrix selection
Yutaka Munakata, Kouji Ohuchi (Shizuoka Univ.) WBS2023-45 ITS2023-28 RCC2023-39
To ease the shortage of radio frequency resources, optical wireless communications (OWC) is attracting much attention.
... [more]
WBS2023-45 ITS2023-28 RCC2023-39
pp.87-91
ITS, WBS, RCC 2023-12-22
10:55
Okinawa
(Primary: On-site, Secondary: Online)
Experimental Evaluation of the Pre-coded Windowed OFDM using SDR under multipath environment
Masataka Kamigaito, Hirochika Tsujimoto, Kohei Ohno (Meiji Univ.) WBS2023-50 ITS2023-33 RCC2023-44
This paper discusses a Windowed Orthogonal Frequency Division Multiplexing (OFDM) system that can suppress out-of-band e... [more] WBS2023-50 ITS2023-33 RCC2023-44
pp.111-116
ITS, WBS, RCC 2023-12-22
15:15
Okinawa
(Primary: On-site, Secondary: Online)
Bit Error Rate of Noise Aided 2x2 SFBC-MIMO-OFDM Systems with 1bit ADCs
Hideaki Sakayama, Masato Saito (Ryukyu Univ.), Takaya Yamazato (Nagoya Univ.) WBS2023-59 ITS2023-42 RCC2023-53
In this study, we conduct a Bit Error Rate (BER) performance evaluation in a $2times2$ Space-Frequency Block Code (SFBC)... [more] WBS2023-59 ITS2023-42 RCC2023-53
pp.161-166
NS, RCS
(Joint)
2023-12-14
11:25
Fukuoka Kyushu Institute of Technology Tobata campus, and Online
(Primary: On-site, Secondary: Online)
[Invited Lecture] Scheduling of OFDM Subcarrier to Provide Multiuser Diversity Gain
Yuta Ida (Yamaguchi Univ.), Yasuaki Ohira (Kagoshima Univ.), Sho Kuroda (FX Systems), Takahiro Matsumoto (Kagoshima Univ.) NS2023-129 RCS2023-182
In an orthogonal frequency division multiple access (OFDMA) which is a kind of multi-access techniques, the subcarrier a... [more] NS2023-129 RCS2023-182
p.32
NS, RCS
(Joint)
2023-12-15
15:40
Fukuoka Kyushu Institute of Technology Tobata campus, and Online
(Primary: On-site, Secondary: Online)
A Study on Periodic Packet Transmission by Uplink OFDMA to Suppress Packet Transfer Delay in Wireless Sensor Networks
Yuya Onogawa, Yosuke Tanigawa, Hideki Tode (Osaka Metropolitan Univ.) NS2023-150
In wireless sensor networks, some data must be transmitted within permissible end-to-end delay. In this paper, we study ... [more] NS2023-150
pp.138-144
UWT
(2nd)
2023-11-27
14:20
Shiga Ritsumeikan University Biwako-Kusatsu Campus (BKC) [Invited Talk] A prototype ICI Canceling Underwater OFDM Communication system for Multi-path Doppler Channel
Tomohisa Wada, Shiho Oshiro, Catherine Akioya (Ryukyu Univ.), Hiromasa Yamada (OKI Com-Echoes)
This technical report concerns the improvement of Doppler tolerance in multipath environments for underwater acoustic ra... [more]
UWT
(2nd)
2023-11-27
16:50
Shiga Ritsumeikan University Biwako-Kusatsu Campus (BKC) Highly efficient underwater acoustic OFDM transmission system using blind delayed wave suppression -- Verification by simulation and construction of experimental system --
Ikeda Haruya, Sumita Soma (Tokyo Univ. of Science), Hisano Daisuke, Sakai Masahiro (Osaka Univ.), Maruta Kazuki (Tokyo Univ. of Science)
For Beyond 5G/6G, research on non-terrestrial wireless communications (e.g., in space, underwater, etc.) is being conduc... [more]
EMCJ 2023-11-24
15:50
Tokyo Kikai-Shinko-Kaikan
(Primary: On-site, Secondary: Online)
Communication Speed Estimation of Undersea Wavelet-OFDM Communication under EM Noise Environment
Shiryu Motomura, Takuto Semba (Kyutech), Toshiyuki Wakisaka (PHD), Tohlu Mastushima, Yuki Fukumoto, Kazuhiro Eguchi (Kyutech) EMCJ2023-79
As the marine business expands, there is a growing demand for real-time capturing of autonomous underwater vehicles (AUV... [more] EMCJ2023-79
pp.40-45
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
OCS, LQE, OPE 2023-10-19
16:40
Kochi
(Primary: On-site, Secondary: Online)
Direct Current-bias-added OFDM Scheme Using Phase-shifted Symbol-preserving Cryptography
Hyuga Nagami, Tomoya Ishikawa, Ayumu Kariya, Fumiya Kobori, Keita Tanaka, Takahiro Kodama (Kagawa Univ.) OCS2023-37 OPE2023-92 LQE2023-39
The application of phase-shifted symbol-preserving encryption to each subcarrier of a DC-bias-added OFDM system is discu... [more] OCS2023-37 OPE2023-92 LQE2023-39
pp.53-56
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