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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 45  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SRW, MICT, WBS 2023-07-20
14:40
Niigata Niigata Univ. TOKIMATE
(Primary: On-site, Secondary: Online)
[Poster Presentation] A Spectrum Efficiency Improvement Method by Adaptive Bandwidth and Transmit Power Control in Multi-Band Wireless Systems
Taishiro Moriyasu, Shigeru Tomisato, Kazuhiro Uehara (Okayama Univ.) WBS2023-17 SRW2023-15 MICT2023-14
This paper evaluates spectrum efficiency with the proposed method which adaptively control bandwidth and transmit power ... [more] WBS2023-17 SRW2023-15 MICT2023-14
pp.15-20
SRW 2023-06-12
14:50
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
[Invited Lecture] Optimal Modulation Selection and Inter-Lighting Interference Reduction for LED Visible Light Wireless Communications by Spatially Parallel Signal Transmission
Harutsuki Tanushi, Madoka Fujii, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ) SRW2023-9
This paper evaluates spectral efficiency improvement with both an optimal modulation selection method in which the most ... [more] SRW2023-9
pp.45-50
RCS, SR, SRW
(Joint)
2023-03-02
11:40
Tokyo Tokyo Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
An Optimal Modulation Selection Method in LED Visible Light Wireless Communications by Spatially Parallel Signal Transmission
Harutsuki Tanushi, Madoka Fujii, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ,) SRW2022-53
This paper proposes an optimal modulation selection method in LED visible light wireless communications by spatially par... [more] SRW2022-53
pp.52-57
RCS, AP, UWT
(Joint)
2020-11-25
16:15
Online Online [Invited Lecture] Spatially Parallel Signal Transmission in LED Visible Light Wireless Communications
Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ.) AP2020-82 RCS2020-121
The traffic of wireless communication systems has greatly increased due to the expansion of smartphones and IoT. Visible... [more] AP2020-82 RCS2020-121
pp.51-55(AP), pp.66-70(RCS)
SRW, SeMI, CNR
(Joint)
2019-11-06
13:25
Tokyo Kozo Keisaku Engineering Inc. [Poster Presentation] An Interference and Non-Linear Distortion Noise Canceler in LED Visible Light Indoor Wireless Communications
Keitaro Hirai, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ.) SRW2019-39 SeMI2019-83 CNR2019-33
This paper studies a collaborative cancelation method for non-linear distortion noise caused by LED non-linearity of a t... [more] SRW2019-39 SeMI2019-83 CNR2019-33
pp.63-68(SRW), pp.83-88(SeMI), pp.61-66(CNR)
MIKA
(2nd)
2019-10-04
10:15
Hokkaido Hokkaido Univ. [Poster Presentation] Receivable signal number evaluation in spatially parallel transmission for LED visible light wireless communications
Yusuke Kamei, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ.)
The traffic of wireless communication systems has greatly increased due to the expansion of smartphones and IoT. Visible... [more]
MIKA
(2nd)
2019-10-04
10:15
Hokkaido Hokkaido Univ. [Poster Presentation] A Study on Signal Separation and Demodulation Method for Collided Signal in Stored Batch Signal Processing
Toru Nishiyama (Okayama Univ.), Ryuku Miyachi, Humiya Ohno, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ.)
 [more]
RCS, SR, SRW
(Joint)
2019-03-07
11:20
Kanagawa YRP Lighting Arrangement for Spatially Parallel Signal Transmission in LED Visible Light Communications
Yusuke Kamei, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ.) SRW2018-64
This paper evaluates interference characteristics according to LED lighting and photodetector arrangement in
spatially ... [more]
SRW2018-64
pp.41-46
ASN, SRW
(Joint)
2018-11-05
13:00
Tokyo Tokyo Denki University, Tokyo Senju Campus [Poster Presentation] Interference Characteristic Evaluation by Lighting Placement in LED Visible Light Communications
Yusuke Kamei, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ.) ASN2018-67 SRW2018-32
This paper evaluates interference characteristics according to LED lighting and photodetector position in signal transmi... [more] ASN2018-67 SRW2018-32
pp.71-74(ASN), pp.47-50(SRW)
SRW 2018-08-20
13:35
Okayama Okayama Univ. A compensation method of non-linear distortion in both transmitter and receiver of LED visible light communications
Takeshi Okada, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ) SRW2018-16
This paper proposes a collaborative nonlinear distortion compensation method for LED nonlinear distortion in both transm... [more] SRW2018-16
pp.43-46
ASN, NS, RCS, SR, RCC
(Joint)
2018-07-12
10:55
Hokkaido Hakodate Arena [Poster Presentation] Inter-system interference evaluation in spectrum sharing systems with multiple frequency bands
Kyouhei Ueda, Shigeru Tomisato, Kazuhiro Uehara (Okayama Univ.) RCC2018-46 NS2018-59 RCS2018-104 SR2018-43 ASN2018-40
This paper evaluates the reduction effect of harmful interference to an existing system by bandwidth control in a second... [more] RCC2018-46 NS2018-59 RCS2018-104 SR2018-43 ASN2018-40
pp.101-104(RCC), pp.107-110(NS), pp.119-122(RCS), pp.111-114(SR), pp.117-120(ASN)
SRW 2017-08-21
13:50
Kyoto Kyoto University A non-linear distortion compensation method in a receiver of LED visible light communications
Takeshi Okada, Takahiro Chikamori, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ.) SRW2017-14
This paper proposes a method to compensate nonlinear distortion of LED of transmitter by for receiver side in visible li... [more] SRW2017-14
pp.31-34
NS, ASN, RCC, RCS, SR
(Joint)
2017-07-20
11:05
Hokkaido Hokkaido Univ. [Poster Presentation] Transmission Efficiency Improvement by Non-Liner Distortion Noise Power Control in Multi-Band Systems
Jumpei Onji, Shigeru Tomisato, Kazuhiro Uehara (Okayama Univ.) RCC2017-32 NS2017-53 RCS2017-124 SR2017-47 ASN2017-41
This paper evaluates transmission efficiency improvement by non-linear distortion noise power control for multiple frequ... [more] RCC2017-32 NS2017-53 RCS2017-124 SR2017-47 ASN2017-41
pp.113-116(RCC), pp.127-130(NS), pp.167-170(RCS), pp.125-128(SR), pp.145-148(ASN)
SRW 2017-06-12
10:25
Kanagawa Fujitsu Transmission Performance Improvement by Saturation Control of LEDs in Visible Light Communication
Takahiro Chikamori, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ.) SRW2017-1
This paper proposes a saturation control method of LEDs according to transmission distance in visible light communicatio... [more] SRW2017-1
pp.1-4
RCS, SR, SRW
(Joint)
2017-03-02
09:00
Tokyo Tokyo Institute of Technology Transmission Performance of Visible Light Communications Using Saturated LEDs
Takahiro Chikamori, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara (Okayama Univ.) SRW2016-85
This paper evaluates transmission performance in which LEDs are linearized and used in its saturation region in visible ... [more] SRW2016-85
pp.99-104
SR 2016-10-28
14:40
Osaka Osaka Univ. Nakanoshima Center Transmission Efficiency Improvement by Non-Linear Distortion Noise Power Control in Multi-Band Systems
Ryotaro Ueda, Shigeru Tomisato, Kazuhiro Uehara (Okayama Univ.) SR2016-74
Multiple frequency band transmission has been studied to realize broadband wireless communications in which plural frequ... [more] SR2016-74
pp.111-114
RCS, CCS, SR, SRW
(Joint)
2016-03-02
09:25
Tokyo Tokyo Institute of Technology A Non-Linear Distortion Compensation Method for Transmission Circuits of LED Visible Light Communications
Takaaki Kumagai, Hiroaki Matsuno, Shigeru Tomisato, Satoshi Denno, Masaharu Hata (Okayama Univ.), Tatsuo Furuno, Yasuhiro Oda (NTTDOCOMO) SRW2015-71
 [more] SRW2015-71
pp.7-10
AP, RCS, WPT, SAT
(Joint)
2015-11-04
16:30
Okinawa Okinawa Prefectural Museum & Art Museum A Study of LOS Rate Applicability for Sloping Terrain Correction Equation in Urban Path Loss Estimation Formula
Kohei Ohnishi, Kazuki Shimada, Shigeru Tomisato, Masaharu Hata (Okayama Univ.) AP2015-123
As one of the effective path loss estimation method for small sloping area, the elevation angle correction method has be... [more] AP2015-123
pp.77-82
SRW 2015-08-24
14:40
Tokyo Shibaura Institute of Technology A compensation method of non-linear distortion in LED visible light communications
Hiroaki Matsuno, Shigeru Tomisato, Satoshi Denno, Masaharu Hata (Okayama Univ.), Tatsuo Furuno, Yasuhiro Oda (NTT DOCOMO) SRW2015-20
In visible light communications using light emitting diodes (LEDs), non-linear distortion caused by LED non-linearity de... [more] SRW2015-20
pp.55-58
AP 2015-07-31
13:10
Hokkaido Wakkanai Sougou Bunka Center A Study of LOS Rate Definition for Sloping Terrain Correction Equation in Urban Path Loss Estimation Formula
Kohei Ohnishi, Jumpei Miki, Shigeru Tomisato, Masaharu Hata (Okayama Univ.) AP2015-56
As one of the effective path loss estimation method for small sloping area, the elevation angle correction method is pro... [more] AP2015-56
pp.95-100
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