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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 14 of 14  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCC, WBS, SAT, MICT 2022-05-26
15:25
Online Online A Study on Performance Improvement in Mid-to-High Latitude Regions Using MIMO Transmission Method with LEO satellites and QZS
Takeshi Shimizu, Mamoru Okumura, Eiji Okamoto (NITech), Amane Miura, Hiroyuki Tsuji (NICT) WBS2022-10 RCC2022-10 SAT2022-10 MICT2022-10
In recent years, the demand for satellite communications has been increasing, and further capacity enhancement has been ... [more] WBS2022-10 RCC2022-10 SAT2022-10 MICT2022-10
pp.46-51
RCS, SIP, IT 2022-01-20
09:55
Online Online A study on Complexity Reduction and Performance Improvement of Polar Coded Chaos Modulation Utilizing Multi-purpose Frozen Bits
Keisuke Asano, Mamoru Okumura, Takumi Abe, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic) IT2021-29 SIP2021-37 RCS2021-197
In recent years, fifth-generation mobile communications system (5G) has been deployed, and the communications of confide... [more] IT2021-29 SIP2021-37 RCS2021-197
pp.7-12
RCS 2021-10-22
13:50
Online Online Study on Performance Improvement of Radio-Wave Encrypted Modulation by LLR Clipping
Mamoru Okumura, Keisuke Asano, Takumi Abe, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic) RCS2021-137
In recent years, physical layer security technologies that encrypt the physical layer using information theory have attr... [more] RCS2021-137
pp.100-105
RCS, SAT
(Joint)
2021-08-27
11:20
Online Online [Encouragement Talk] Performance analysis of LEO-GEO multi-satellite MIMO transmission method
Ayaka Noda, Kohei Ueno, Mamoru Okumura, Eiji Okamoto (NITech), Hiroyuki Tsuji, Amane Miura (NICT) SAT2021-36
Currently, demands on high-capacity satellite communications are continuously increasing. To achieve it, multiple input ... [more] SAT2021-36
pp.43-48
RCS, SR, NS, SeMI, RCC
(Joint)
2021-07-15
13:00
Online Online Wired Transmission Experiments of Chaos Coded Modulation Method Using Software-Defined Radio
Kenya Tomita, Mamoru Okumura, Eiji Okamoto (NIT) RCC2021-30 NS2021-46 RCS2021-88 SR2021-28 SeMI2021-22
In recent years, with the progress on commercialization of the fifth-generation mobile communications system (5G), wirel... [more] RCC2021-30 NS2021-46 RCS2021-88 SR2021-28 SeMI2021-22
pp.37-42(RCC), pp.75-80(NS), pp.55-60(RCS), pp.42-47(SR), pp.51-56(SeMI)
RCS 2021-06-23
10:20
Online Online A Study on Performance Improvement of Polar Coded-Radio Wave Encrypted Modulation by CRC Code Concatenation
Keisuke Asano, Mamoru Okumura, Takumi Abe, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic) RCS2021-34
In recent years, fifth-generation mobile communications system (5G) has been deployed, and the number of Internet of thi... [more] RCS2021-34
pp.31-36
RCS 2021-06-23
10:30
Online Online A Study on Secret Key Sharing Using Time-Division Duplex Channel Information in Radio-Wave Encrypted Modulation
Takumi Abe, Mamoru Okumura, Keisuke Asano, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic) RCS2021-35
In recent years, cyber-attacks targeting Internet of things (IoT) terminals have been increasing. As a countermeasure, e... [more] RCS2021-35
pp.37-42
RCS 2021-04-23
10:10
Online Online A Study of Highly Accurate V2I Beam Tracking Scheme Using Vehicle Logs
Ryo Kato, Mamoru Okumura, Eiji Okamoto (NIT) RCS2021-11
In autonomous driving systems, which has attracted much attention in recent years, sensor information of many vehicles i... [more] RCS2021-11
pp.48-53
SANE, SAT
(Joint)
2021-02-19
10:25
Online Online Study on LEO-GEO multi-satellite MIMO transmission method considering propagation delay difference
Ayaka Noda, Kohei Ueno, Mamoru Okumura, Eiji Okamoto (NIT), Hiroyuki Tsuji, Amane Miura (NICT) SAT2020-34
Currently, the demand on large capacity satellite communications is continuously growing to disperse the geographical di... [more] SAT2020-34
pp.29-34
SIP, IT, RCS 2021-01-21
10:15
Online Online Improvement of Encoding Gain in Radio-Wave Encrypted Modulation Using Logistic Map
Mamoru Okumura, Tomoki Kaga, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic) IT2020-72 SIP2020-50 RCS2020-163
In recent years, fifth-generation mobile communications system (5G) has been promoted around the world, and the markets ... [more] IT2020-72 SIP2020-50 RCS2020-163
pp.52-57
SAT, RCS
(Joint)
2020-08-21
09:25
Online Online A study on encrypted hybrid modulation scheme using chaos modulation and QAM
Tomoki Kaga, Mamoru Okumura, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic) RCS2020-83
In the fifth generation mobile communications system (5G), it is important to ensure wireless security as well as to rea... [more] RCS2020-83
pp.23-28
SR, NS, SeMI, RCC, RCS
(Joint)
2020-07-09
14:15
Online Online Study on Chaos-based Multi-user Interleave Division Multiple Access Scheme
Mamoru Okumura, Tomoki Kaga, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic) RCC2020-7 NS2020-36 RCS2020-70 SR2020-15 SeMI2020-7
In the fifth-generation mobile communications system (5G), massive machine-type communications (mMTC), which accommodate... [more] RCC2020-7 NS2020-36 RCS2020-70 SR2020-15 SeMI2020-7
pp.31-36(RCC), pp.31-36(NS), pp.73-78(RCS), pp.37-42(SR), pp.25-30(SeMI)
RCS 2020-06-24
16:10
Online Online Study on Applying Radio -Wave Encryption to Interleave Division Multiple Access Scheme
Mamoru Okumura, Tomoki Kaga, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic) RCS2020-30
One of the main use cases of the fifth-generation mobile communications system (5G) is massive machine-type communicatio... [more] RCS2020-30
pp.43-48
RCS 2020-06-25
10:25
Online Online Study on Adaptive Switching of Variable Linear Array Antenna Elements for Reliable Millimeter-Wave V2N Transmission
Ryo Kato, Mamoru Okumura, Eiji Okamoto (NIT) RCS2020-32
Advanced driver assistance systems (ADAS) have been attracting attention in recent years. To accommodate many users and ... [more] RCS2020-32
pp.55-60
 Results 1 - 14 of 14  /   
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