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 Results 1 - 20 of 76  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
CS 2020-11-05
14:10
Online Online + Central Community Center, Nonoichi Community Center
(Primary: Online, Secondary: On-site)
[Invited Talk] A study on generalization of hypersphere modulation
Sho Kakuwa, Masahiro Fujii (Utsunomiya Univ.) CS2020-48
In this paper, we propose new modulation schemes in multi-dimensional Euclidean space under the condition that all symbo... [more] CS2020-48
pp.7-11
OFT 2018-10-11
14:00
Miyagi Touhoku Univ. [Poster Presentation] Signal evaluation of optical BPSK/QPSK signal asymmetrically band-limited by optical spatial filters
Masaki Tasugi, Katsumi Takano (Yamagata Univ.), Masaki Shiraiwa (NICT), K. I. Amila Sampath (TUS), Yosinari Awaji (NICT) OFT2018-25
In order to overcome the limitation of the wavelength division multiplexing techniques on optical fiber communications, ... [more] OFT2018-25
pp.57-60
RCS, SAT
(Joint)
2017-08-18
11:10
Niigata Niigata Univ. [Special Talk] Building of Experimental Environment for Wireless Communications by Software Defined Radio
Ayano Ohnishi, Yoshimi Fujii, Ayako Suzuki (KKE) SAT2017-33 RCS2017-163
As wireless communication technology is more sophisticated and digital signal processing is more complex, the importance... [more] SAT2017-33 RCS2017-163
pp.63-68(SAT), pp.105-110(RCS)
OME, OPE 2016-11-24
15:50
Miyagi   PDM-QPSK to PDM-BPSK modulation format conversion using FWM and interference
Hiroki Kishikawa, Nobuo Goto (Tokushima Univ.) OME2016-50 OPE2016-100
Flexible conversion between multi-level modulation formats is one of the key processing functions to realize adaptive mo... [more] OME2016-50 OPE2016-100
pp.11-16
OFT, OCS, IEE-CMN, ITE-BCT [detail] 2016-11-10
16:25
Nagasaki Nagasaki Shoko Kaigi Sho Automatic pull-in operation in heterodyne phase-lock and homodyne detection of QPSK signals by microcomputer-assisted loop filter
Yudai Hisata, Akira Mizutori, Masafumi Koga (Oita Univ.) OCS2016-58
This paper demonstrates signal light carrier automatic pull-in and phase-lock operation to optical frequency comb refere... [more] OCS2016-58
pp.9-12
AP
(2nd)
2016-02-29
16:45
Overseas Telecommunications University, Nha Trang, Vietnam FPGA-based all digital OFDM visible light communication with low-frame-rate CMOS image sensor
Ryo Ito, Takahiro Asai, Ryotaro Kitaoka, Tomoki Kondo, Shota Mizuno, Nguyen Thi Nguyen, Wataru Chujo (Meijo Univ.)
Orthogonal Frequency Division Multiplexing (OFDM) has been applied to LED visible light communication in combination wit... [more]
OPE, OCS, OFT
(Joint) [detail]
2015-02-20
15:50
Kagoshima   RZ-OOK to RZ-DQPSK Format Conversion With All-Optical Clock Regeneration
Naoya Oka, Keita Mizusaka, Motoharu Matsuura (UEC) OFT2014-79 OPE2014-234
We demonstrated RZ-OOK to RZ-DQPSK format conversion with all-optical clock regeneration, which does not require a conve... [more] OFT2014-79 OPE2014-234
pp.117-120(OFT), pp.175-178(OPE)
ITE-BCT, OCS, OFT, IEE-CMN
(Joint) [detail]
2014-11-14
13:25
Hiroshima   Experimental demonstration of 8-state Trellis-coded 4D-QPSK optical modulation scheme
Shota Ishimura, Kazuro Kikuchi (Univ. of Tokyo) OCS2014-88
Recently, in coherent optical communication systems, 4-dimesnional (4D) modulation formats designed by using two degrees... [more] OCS2014-88
pp.71-76
OCS, OPE, LQE 2014-10-30
13:40
Nagasaki Nagasaki Museum of History and Culture Phase de-multiplexing of QPSK signals by phase sensitive ampllification
Takayuki Kurosu, Shu Namiki (AIST) OCS2014-59 OPE2014-103 LQE2014-77
Phase sensitive amplification (PSA) that utilizes low-dispersion highly nonlinear fiber as the nonlinear optical materia... [more] OCS2014-59 OPE2014-103 LQE2014-77
pp.93-96
CS 2014-07-04
09:00
Kagoshima Minamitanecho Shoukoukai Kaigishitsu Influence Evaluation of TX/RX IQ Imbalance for OFDM
Satoshi Nakao, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst of Tech.) CS2014-32
The imperfection on orthogonal frequency converters in the transmitter and receiver causes imbalance between in-phase an... [more] CS2014-32
pp.91-96
PN, NS, OCS
(Joint)
2014-06-26
10:50
Oita B-ConPlaza Costas Loop Homodyne detection for 20Gbit/s QPSK signal transmission
Yusuke Shigeta, Akira Mizutori, Masafumi Koga (Oita Univ.) OCS2014-12
The optical fiber transmission experiment confirmed a stable Costas-Loop homodyne detection for 20Gbit/s QPSK signal. Su... [more] OCS2014-12
pp.1-4
OCS, OPE, OFT
(Joint) [detail]
2014-02-27
18:05
Okinawa nest HOTEL Naha [Fellow Memorial Lecture] Research and development of photonic network -- From 1Giga-bit to 10Tera-bit --
Hiroshi Onaka (Fujitsu) OCS2013-108 OFT2013-65 OPE2013-215
Looking back on R&D history of photonic networks and high-speed,high-capacity optical transmission systems around WDM tr... [more] OCS2013-108 OFT2013-65 OPE2013-215
pp.39-44(OCS), pp.57-62(OFT), pp.57-62(OPE)
OCS, OPE, OFT
(Joint) [detail]
2014-02-28
11:35
Okinawa nest HOTEL Naha All-Optical Modulation Format Conversion from BPSK to QPSK Using Delayed Interferometer and Pulse Shaping Filter
Yui Shinohara, Hiroki Kishikawa, Nobuo Goto, Shin-ichiro Yanagiya (Univ. of Tokushima) OCS2013-111 OFT2013-73 OPE2013-223
Previously we proposed an all-optical modulation format conversion from DPSK to DQPSK by passiveoptical processing with ... [more] OCS2013-111 OFT2013-73 OPE2013-223
pp.57-62(OCS), pp.97-102(OFT), pp.97-102(OPE)
AP
(2nd)
2014-01-10
13:40
Overseas Le Quy Don Technical University (Hanoi, Vietnam) Channel estimation method using narrowband signals for MIMO sensor
Tsubasa Tashiro, Kentaro Nishimori (Niigata Univ), Tsutomu Mitsui, Nobuyasu Takemura (Sammsung R&D Institune Japan)
We have proposed an intruder detection method by using Multiple Input Multiple Output (MIMO) channel. Although the chann... [more]
LQE, OCS, OPE 2013-10-25
16:45
Fukuoka   Study on polarization-diversity and guard-band-less wavelength converter
Takashi Inoue, Ken Tanizawa, Shu Namiki (AIST) OCS2013-79 OPE2013-125 LQE2013-95
We propose a practical wavelength converter based on four-wave mixing in optical fiber, and we achieve a polarization-di... [more] OCS2013-79 OPE2013-125 LQE2013-95
pp.147-151
LQE, OCS, OPE 2013-10-25
17:35
Fukuoka   Multi-dimensional modulation and demodulation schemes in coherent optical communication systems
Shota Ishimura, Kazuro Kikuchi (Univ. of Tokyo) OCS2013-81 OPE2013-127 LQE2013-97
In newly-developed coherent optical communication systems, we can employ four-dimensional optical modulation including t... [more] OCS2013-81 OPE2013-127 LQE2013-97
pp.159-164
SR 2013-10-25
15:55
Osaka Osaka Univ. A Study of Bit Error Rate Improving Methods Combining with Synchronous Acquisition for Digital Public Private Mobile Radio Systems Employing Heterogeneous Cognitive Radio
Masafumi Moriyama, Takeo Fujii (UEC) SR2013-74
We have studied a heterogeneous cognitive radio system which combines digital public private mobile radio systems (DPPMR... [more] SR2013-74
pp.123-130
OPE, LQE, CPM, EMD, R 2013-08-30
09:45
Hokkaido sun-refre Hakodate Compact coherent receiver using InP-based PDs integrated with 90°hybrid
Masaru Takechi, Yoshihiro Tateiwa, Hideki Yagi, Yoshihiro Yoneda, Kazuhiro Yamaji, Yasushi Fujimura, Hiroshi Hara, Shoichi Ogita (SEI) R2013-48 EMD2013-54 CPM2013-73 OPE2013-77 LQE2013-47
A compact coherent receiver using InP-based PDs integrated with 90° hybrid is reported. The package size at 15x26x5.5 mm... [more] R2013-48 EMD2013-54 CPM2013-73 OPE2013-77 LQE2013-47
pp.99-102
SRW 2013-08-19
13:25
Tokyo Shibaura Institute of Technology A Study on Forward Error Correction Effect of DSSS Type O-QPSK Signals employing Narrow Band Interference Suppression
Sho Otsuka, Shuji Kubota (Shibaura Inst. of Tech.) SRW2013-23
920 MHz band radio is released in July 2012 in Japan, therefore development of Sab-giga-hertz band radio related product... [more] SRW2013-23
pp.15-20
SRW 2013-08-19
13:50
Tokyo Shibaura Institute of Technology A Study on Multiple Data Receiving of DSSS Type O-QPSK Signals in the Co-channel Interference
Kazuma Kudo, Shuji Kubota (Shibaura Inst. of Tech.) SRW2013-24
Recently, sensor networks have been attracting attention. As an example, there are energy management systems to effectiv... [more] SRW2013-24
pp.21-26
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