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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| IT | 2020-12-03 14:50 |
Online | Online | A Study on Signature Codes for Synchronous Optical CDMA Systems
-- Proposal of Shortened Codes Based on Generalized Modified Prime Sequence Codes -- Kyohei Ono, Shoichiro Yamasaki, Tomoko K. Matsushima (Polytechnic Univ.)  IT2020-57 |
In this paper, we propose a class of new spreading codes for synchronous optical CDMA and introduce a construction metho... [more] | IT2020-57 pp.177-182 |
| IN, NS (Joint) |
2019-03-05 13:30 |
Okinawa | Okinawa Convention Center | A Study on Performance Evaluation of MIMO Channel with Multilevel Spreading Codes Tatsuya Motoki, Miyuki Hirose, Takehiko Kobayashi (Tokyo Denki Univ.) IN2018-135 |
To suppress the noise enhancement, a new spread spectrum communication system with Gold code had studied in our previous... [more] | IN2018-135 pp.307-312 |
| WBS, MICT | 2018-07-06 13:55 |
Kanagawa | Yokohama Mitsui Building | BER Considering Synchronization Performance Optical Wireless CSK System Using DMPOMs Takashi Tokunaga, Ran Sun, Hiromasa Habuchi, Yusuke Kozawa (Ibaraki Univ.) WBS2018-17 MICT2018-37 |
The code-shift-keying (CSK) system using dual modified pseudo orthogonal M-sequence sets (DMPOMs) which are generated by... [more] | WBS2018-17 MICT2018-37 pp.65-70 |
| WBS, IT, ISEC | 2018-03-09 13:55 |
Tokyo | Katsusika Campas, Tokyo University of Science | Influence of Channel Estimation Error on Noise Enhancement Suppression by Using Novel Multilevel Spreading Codes Tatsuya Motoki, Takehiko Kobayashi (Tokyo Denki Univ.) IT2017-146 ISEC2017-134 WBS2017-127 |
Zero-forcing frequency-domain equalization (ZF-FDE) has been used to combat frequency selective fading caused by multipa... [more] | IT2017-146 ISEC2017-134 WBS2017-127 pp.259-264 |
| WBS | 2017-10-12 15:00 |
Wakayama | Rivage Spa Hikigawa (Nanki Shirahama) | [Poster Presentation]
Performance Evaluation of Optical Code-Shift Keying /SCDMA Using Two Layered MPOMs Takashi Tokunaga, Hiromasa Habuchi, Yusuke Kozawa, Ran Sun (Ibaraki Univ.) WBS2017-25 |
The code-shift-keying (CSK) using the two-layered MPOMs which combine modified pseudo orthogonal M-sequence sets (MPOMs)... [more] | WBS2017-25 pp.11-16 |
| WBS, SAT (Joint) |
2017-05-25 14:25 |
Tochigi | Utsunomiya Univ. Yoto Campus | A Study on Design of Two-Layered Pseudo-Noise Code for Optical-Wireless Code Shift Keying/Synchronous CDMA Takashi Tokunaga, Hiromasa Habuchi, Yusuke Kozawa (Ibaraki Univ.) WBS2017-1 |
In this paper, a design of two-layered pseudo-noise (PN) code for optical-wireless code shift keying (CSK) is considere... [more] |
WBS2017-1 pp.1-5 |
| WBS, RCC, ITS | 2016-12-01 13:00 |
Kagawa | Sunport Hall Takamatsu | [Poster Presentation]
Performance evaluation of DS/SS-IVC Scheme based on Location Oriented Allocation Scheme Using Hadamard Code Kazuki Kobayashi, Reiki Kusakari, Akira Nakamura (Tokyo Univ. of Science), Kohei Ohno (Meiji Univ.), Makoto Itami (Tokyo Univ. of Science) WBS2016-50 ITS2016-17 RCC2016-39 |
This paper discusses a DS/SS-IVC (Direct Sequence/Spreads Spectrum-Inter Vehicle Communication) scheme based on location... [more] | WBS2016-50 ITS2016-17 RCC2016-39 pp.13-18 |
| RCS | 2016-10-21 10:50 |
Kanagawa | YRP (Yokosuka) | A Study on Single Carrier Non-orthogonal Multiple Access using Code Spreading toward Massive Connectivity Jungo Goto, Osamu Nakamura, Yasuhiro Hamaguchi (Sharp), Shinsuke Ibi, Seiichi Sampei (Osaka Univ) RCS2016-177 |
This paper investigates a methodology to apply code spreading to uplink single carrier non-orthogonal multiple access (S... [more] | RCS2016-177 pp.131-136 |
| IT, EMM | 2016-05-19 11:05 |
Hokkaido | Otaru Economic Center | Evaluation of scanned image tolerance by using spread spectrum digital watermarking with regression analysis Jinjing Ma, Masaki Kawamura (Yamaguchi Univ.) IT2016-3 EMM2016-3 |
In order to detect watermarks from a scanned image, we investigated color change between the stego-image and the scanned... [more] | IT2016-3 EMM2016-3 pp.13-18 |
| NLP, CCS | 2015-06-11 15:30 |
Tokyo | Waseda Univerisity | Applicability and characteristics to satellite communications with power constant chaotic spreading sequence Isao Nakazawa, Ken Umeno (Kyoto Univ.) NLP2015-51 CCS2015-13 |
On explosion of Telecommunications and the Big Data, super-multi access satellite sensor network and high-speed satellit... [more] | NLP2015-51 CCS2015-13 pp.73-78 |
| RCS, SR, SRW (Joint) |
2015-03-06 10:50 |
Tokyo | Tokyo Institute of Technology | Adaptive 2-Dimensional Block Spreading for Downlink MC-CDMA Distributed Antenna Network Yumeto Mori, Shohei Inoshita, Hiroyuki Miyazaki, Fumiyuki Adachi (Tohoku Univ.) RCS2014-353 |
In this paper, we study in order to apply the multi-carrier code division multiple access (MC-CDMA) and 2-dimensional bl... [more] | RCS2014-353 pp.309-314 |
| NLP | 2015-01-26 12:15 |
Oita | Compal Hall | Analysis on Optimal Markov Code for DS/SS to Minimize the BER Yoshimasa Narumiya, Mikio Hasegawa (Tokyo Univ. Science) NLP2014-118 |
It has been shown that the chaotic spreading code is effective for the DS/CDMA systems. By analyzing the most effective ... [more] | NLP2014-118 pp.31-36 |
| WBS, ITS (Joint) |
2014-12-18 12:30 |
Kumamoto | Kumamoto University | [Poster Presentation]
Multilevel Spreading Codes to Suppress Noise Enhancement in Zero-Forcing Frequency-Domain Equalization Takahito Hoyagi, Takehiko Kobayashi (Tokyo Denki Univ.) WBS2014-49 |
(To be available after the conference date) [more] | WBS2014-49 pp.53-57 |
| IPSJ-AVM, CS, IE, ITE-BCT [detail] | 2014-12-04 14:50 |
Osaka | Osaka University Nakanoshima Center | A Proposal of Encoding Marker which is Robust against Blur and easy to Detect Norimasa Kobori, Daisuke Deguchi (Nagoya Univ), Tomokazu Takahashi (Gifu Shotoku Univ), Ichiro Ide, Hiroshi Murase (Nagoya Univ) CS2014-73 IE2014-59 |
We proposed a new encoding Marker which can have flexibility to marker’s placement and distance. Our method can detect t... [more] | CS2014-73 IE2014-59 pp.19-24 |
| NLP | 2014-05-27 15:45 |
Shimane | Big Heart IZUMO | Effectiveness of Gabor Division Spread Spectrum System and its Design and Implementation Hiroki Kato, Hisashi Watanabe, Mikio Hasegawa (Tokyo Univ. of Science) NLP2014-18 |
Gabor Division/Spread Spectrum System (GD/SSS) has been proposed by extending spread spectrum system using the codes in ... [more] | NLP2014-18 pp.91-94 |
| NLP | 2014-01-22 16:20 |
Hokkaido | Niseko Park Hotel | Searching for Two-dimensional Spreading Codes to Improve the Synchronization Performance of Time and Frequency Spread Spectrum System Hisashi Watanabe, Hiroyuki Yasuda, Mikio Hasegawa (Tokyo Univ. of Science) NLP2013-162 |
In the chaos CDMA, it has been showed that negative autocorrelation and the Gaussian waveform is valid in the time domai... [more] | NLP2013-162 pp.173-176 |
| RCS, NS (Joint) |
2013-12-19 09:00 |
Kagawa | Sunport Hall Takamatsu | A Study on Optimization of Reciever Filter of Nallowband DS-CDM Transmission System Naoki Oyama, Makoto Taromaru (Fukuoka Univ.) RCS2013-223 |
Even when using spread spectrum (SS) modulation for a radio communication system, we have take into account the occupied... [more] | RCS2013-223 pp.101-105 |
| RCS | 2013-04-19 11:20 |
Okinawa | Ishigaki City Hall | Evaluation on PAPR Performance of Nallowband DS-SS Transmission Using M-sequence to Spread Spectrum Code Naoki Oyama, Ryota Nakanishi, Makoto Taromaru (Fukuoka Univ.) RCS2013-17 |
Even if the transmission method is spread spreading communication, frequency band has to limit band witdh.We simulated b... [more] | RCS2013-17 pp.93-96 |
| CAS | 2013-01-29 14:55 |
Oita | Beppu International Convention Center | Performance Evaluation of Spreading Codes with Negative Auto-Correlation Based on Gold Sequences and Chaos Theory
-- BER in Asynchronous DS/CDMA Communications under AWGN Environment -- Satoshi Abe, Akio Tsuneda (Kumamoto Univ.) CAS2012-87 |
In asynchronous DS/CDMA communications, spreading codes with appropriate negative auto-correlation can reduce bit error ... [more] | CAS2012-87 pp.121-124 |
| SR, AN, USN, RCS (Joint) |
2012-10-19 15:55 |
Fukuoka | Fukuoka univ. | A study on nallowband DS-CDMA translation that applyed M-sequence to Spread Spectrum Code Naoki Oyama, Makoto Taromaru (Fukuoka Univ.), Takahiko Kishi RCS2012-157 |
Even when we communicate with spread spectrum, we have take into account occupide frequency bandwith. It have been stu... [more] |
RCS2012-157 pp.185-188 |
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