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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 87  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
PN 2024-03-14
11:10
Kagoshima
(Primary: On-site, Secondary: Online)
100 GBaud Superchannel Transmission Experiment in CTR Mode
Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.) PN2023-69
We evaluated encryption penalty associated with symbolic block cipher applied CTR mode for 100 GBaud QAM signal by simul... [more] PN2023-69
pp.1-5
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
PN 2024-03-15
09:20
Kagoshima
(Primary: On-site, Secondary: Online)
Study on Symbol-block AES Cryptography for Digital Coherent Communication
Hodaka Amano, Takahiro Kodama (Kagawa Univ.) PN2023-77
We applied symbol block AES encryption, which inherits the four functions that form the basic structure of the advanced ... [more] PN2023-77
pp.42-47
PN 2024-03-15
09:40
Kagoshima
(Primary: On-site, Secondary: Online)
Experimental investigation of encryption of Duo binary coded time-domain hybrid PAM signal
Fumiya Kobori, Keita Tanaka, Takahiro Kodama (Kagawa Univ.) PN2023-78
 [more] PN2023-78
pp.48-52
PN 2024-03-15
11:10
Kagoshima
(Primary: On-site, Secondary: Online)
Twin beam collective optical axis control using deep learning
Keita Tanaka, Fumiya Kobori, Takahiro Kodama (Kagawa Univ.) PN2023-82
 [more] PN2023-82
pp.69-73
PN 2024-03-15
16:10
Kagoshima
(Primary: On-site, Secondary: Online)
A Study of Coherent Downstream Transmission of Adaptive Polarization and IQ Multiplexed Signals with Asymmetric Number of Signal Points and Amplitude
Yuika Mori, Keiji Shimada, Takahiro Kodama (Kagawa Univ.) PN2023-92
We have already reported downlink transmission using IQ multiplexed 4ASK signals with power loading for the difference i... [more] PN2023-92
pp.127-130
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]
UWT
(2nd)
2024-01-29
17:05
Tokyo Tokai University Shinagawa Campus
(Primary: On-site, Secondary: Online)
Adaptive Underwater Optical Wireless Communication Network Utilizing Beam Steering for Air/Water Path Switching
Kiichiro Kuwahara, Hyuga Nagami, Keita Tanaka, Fumiya Kobori, Ayumu Kariya (Kagawa Univ.), Shogo Hayashida (Sangikyo), Takahiro Kodama (Kagawa Univ.)
In this research, we introduced an aerial relay node and conducted a full-duplex class 1 eye-safe transmission experimen... [more]
UWT
(2nd)
2023-11-27
13:20
Shiga Ritsumeikan University Biwako-Kusatsu Campus (BKC) Underwater channel communication of visible light band flat beam using Galilean telescoping beam shaper
Ayumu Kariya, Kiichiro Kuwahara, Tomoya Ishikawa, Fumiya Kobori, Keita Tanaka, Takahiro Kodama (Kagawa Univ.)
 [more]
UWT
(2nd)
2023-11-27
13:45
Shiga Ritsumeikan University Biwako-Kusatsu Campus (BKC) DC-biased time-domain hybrid PAM signal for visible light band spatial optical wireless communication
Hodaka Amano, Ayumu Kariya, Tomoya Ishikawa, Fumiya Kobori, Keita Tanaka, Keiji shimada, Reika Suketomo, Yuika Mori, Takahiro Kodama (Kagawa Univ.)
 [more]
ICM, NS, CQ, NV
(Joint)
2023-11-22
10:30
Ehime Ehime Prefecture Gender Equality Center
(Primary: On-site, Secondary: Online)
[Invited Talk] Highly confidential and high-density data transmission technology in underwater optical wireless communication
Takahiro Kodama (Kagawa Univ.) NS2023-120
In the context of underwater optical communication, there is a demand for the design and development of transceivers tai... [more] NS2023-120
pp.56-61
OCS, LQE, OPE 2023-10-19
11:20
Kochi
(Primary: On-site, Secondary: Online)
Kalman Filter Directive Frequency Control for Frequency Domain Hybrid Asymmetric QAM Subband Signals under Tight WSS Passband Narrowing
Keita Tanaka, Momoka Masaoka, Keiji Shimada, Takahiro Kodama (Kagawa Univ.) OCS2023-28 OPE2023-83 LQE2023-30
 [more] OCS2023-28 OPE2023-83 LQE2023-30
pp.11-15
OCS, LQE, OPE 2023-10-19
16:15
Kochi
(Primary: On-site, Secondary: Online)
AES Algorithm Modified Symbol Block Ciphering
Hodaka Amano, Takahiro Kodama (Kagawa Univ.) OCS2023-36 OPE2023-91 LQE2023-38
We propose a new variant of the AES algorithm, named the AES symbol block cipher, designed for M-ary quadrature amplitud... [more] OCS2023-36 OPE2023-91 LQE2023-38
pp.47-52
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
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
PN 2023-08-29
10:30
Hokkaido
(Primary: On-site, Secondary: Online)
Polarization and IQ multiplexing 4ASK downlink transmission experiment of P-to-MP system using phase shift symbol preserved encryption
Yuika Mori, Reika Suketomo, Hodaka Amano, Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.) PN2023-17
We have already reported downlink transmission using adaptive IQ imbalanced 4ASK signal for groups of ONUs with differen... [more] PN2023-17
pp.6-10
PN 2023-08-29
16:05
Hokkaido
(Primary: On-site, Secondary: Online)
Study of fully-coupled/half-split shared link switchable access scheme for simultaneous link and transceiver failures
Ryunosuke minamoto, Yuta Kimura, Mizuki Inagaki, Takahiro Kodama (Kagawa Univ.) PN2023-25
 [more] PN2023-25
pp.47-54
PN 2023-08-30
09:50
Hokkaido
(Primary: On-site, Secondary: Online)
Comparative study of various signals with the same transmission capacity under WSS tight passband narrowing.
Hodaka Amano, Keita Tanaka, Keiji Shimada, Takahiro Kodama (Kagawa Univ.) PN2023-31
 [more] PN2023-31
pp.78-81
PN 2023-08-30
10:15
Hokkaido
(Primary: On-site, Secondary: Online)
Kalman Filter Directive Frequency Control for Same Modulation Dual Subband Signals under Tight WSS Passband Narrowing
Keita Tanaka, Momoka Masaoka, Keiji Shimada, Ken'ichi Fujimoto, Takahiro Kodama (Kagawa Univ.) PN2023-32
 [more] PN2023-32
pp.82-87
CS, CQ
(Joint)
2023-05-18
13:00
Kagawa Rexxam Hall (Kagawa Kenmin Hall)
(Primary: On-site, Secondary: Online)
Principle Experiment of Spatial Optical Wireless Communication Using Time Domain Hybrid PAM Signal
Ayumu Kariya, Tomoya Ishikawa, Fumiya Kobori, Keita Tnaka, Takahiro Kodama (Kagawa Univ) CS2023-2
 [more] CS2023-2
pp.6-10
 Results 1 - 20 of 87  /  [Next]  
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