Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS, SIP, IT |
2022-01-20 14:05 |
Online |
Online |
A Study on Multi-Rate Transmission Scheme Using Two-Layered Spreading Codes for Synchronous Optical CDMA Kyohei Ono (JEED), Hirokazu Tanaka (Hiroshima City Univ.), Tomoko K. Matsushima (YCC), Shoichiro Yamasaki (Hiroshima City Univ.) IT2021-50 SIP2021-58 RCS2021-218 |
Generalized modified prime sequence codes (GMPSCs) have been proposed as spreading codes for synchronous optical code di... [more] |
IT2021-50 SIP2021-58 RCS2021-218 pp.119-124 |
WBS, IT, ISEC |
2021-03-04 09:50 |
Online |
Online |
Variable spreading factor codes for optical code-division multiple access Kyohei Ono, Shoichiro Yamasaki, Tomoko K. Matsushima (Polytechnic Univ.) IT2020-113 ISEC2020-43 WBS2020-32 |
In this study, we propose variable spreading factor codes based on generalized modified prime sequence codes (GMPSCs), w... [more] |
IT2020-113 ISEC2020-43 WBS2020-32 pp.7-12 |
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 |
IT, EMM |
2020-05-29 11:20 |
Online |
Online |
A Study on Code Construction Method for Optical CDMA with Variable Spreading Factor Shoichiro Yamasaki, Tomoko K. Matsushima, Kyohei Ono (Polytechnic Univ.) IT2020-9 EMM2020-9 |
This study proposes variable spreading factor codes for optical synchronous code division
multiple access (CDMA) which... [more] |
IT2020-9 EMM2020-9 pp.49-54 |
IT, SIP, RCS |
2020-01-24 09:55 |
Hiroshima |
Hiroshima City Youth Center |
A Study on Construction Method of Orthogonal Variable-Length Spreading Sequences over Finite Fields Shoichiro Yamasaki, Tomoko K. Matsushima (Polytechnic University) IT2019-66 SIP2019-79 RCS2019-296 |
Orthogonal spreading codes have been applied to multiple access for communication systems.
Tree structured orthogonal ... [more] |
IT2019-66 SIP2019-79 RCS2019-296 pp.173-178 |
WBS (2nd) |
2019-12-17 - 2019-12-18 |
Aichi |
Hotel Kinsenkaku |
Study on Spreading Codes with Negative Auto-Correlation for SIK Optical CDMA Communications Akio Tsuneda (Kumamoto Univ.) |
The SIK (sequence inversion keyed) CDMA (code division multiple access) system was proposed as one of optical CDMA commu... [more] |
|
CAS, CS |
2019-03-09 11:15 |
Kanagawa |
Shonan Institute of Technology |
On Polyphase Sequence Sets with Low Correlation Properties Yuhei Ohashi, Sho Kuroda, Yuta Ida, Takahiro Matsumoto, Shinya Matsufuji (Yamaguchi Univ.) CAS2018-150 CS2018-118 |
In recent years, Zadoff-Chu sequence which is a polyphase sequence set has been used as synchronization sequences and s... [more] |
CAS2018-150 CS2018-118 pp.65-70 |
MBE, NC (Joint) |
2018-03-13 11:15 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Statistical mechanics of coherent Ising machine
-- The case of CDMA multiuser detector -- Toru Aonishi (Tokyo Tech.), Kazushi Mimura (Hiroshima City Univ.), Masato Okada (Univ. Tokyo), Yoshihisa Yamamoto (ImPACT/ Stanford Univ.) NC2017-71 |
The coherent Ising machine (CIM) has attracted attention as one of the most effective Ising computing architectures for ... [more] |
NC2017-71 pp.21-26 |
EMM |
2017-01-30 16:15 |
Miyagi |
Tohoku University (Miyagi) |
On Some Variations of Information Hiding Strategies Based on Complete Complementary Codes Tetsuya Kojima (NIT, Tokyo College) EMM2016-79 |
Complete complementary code (CCC) is a spread spectrum sequence family with good correlation properties. Information hid... [more] |
EMM2016-79 pp.31-36 |
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 |
RCS, CCS, SR, SRW (Joint) |
2016-03-02 09:00 |
Tokyo |
Tokyo Institute of Technology |
Adaptive Low Power Density Baseband Radio[II]
-- Multi-user Transmission Scheme in Propagation Environments Having Each Different Delay Spread -- Jin Nakazato, Yoshio Karasawa (UEC) SR2015-89 |
We have proposed low power density baseband radio with frequency-domain differential spreading code for realizing underl... [more] |
SR2015-89 pp.1-7 |
CCS |
2015-11-10 15:25 |
Kyoto |
Inamori Foundation Memorial Building, Kyoto Univ. |
Optimal CDMA Systems with Heterogeneous Autocorrelations of Constant Power Spreading Sequence
-- Theory and its Performance Evaluation -- Hirofumi Tsuda, Ken Umeno (Kyoto Univ.) CCS2015-64 |
Recently, the new spreading sequence obtained by Weyl sequence is proposed. Its crosscorrelation function follows O(1/N)... [more] |
CCS2015-64 pp.103-108 |
AP, RCS, WPT, SAT (Joint) |
2015-11-06 09:55 |
Okinawa |
Okinawa Prefectural Museum & Art Museum |
Adaptive low power density baseband radio in multi-path rich environment Jin Nakazato, Uyanga Galbadrakh, Yuki Morimoto, Yoshio Karasawa (UEC) RCS2015-226 |
In this report, we propose low power density baseband radio with frequency-domain differential spreading code for realiz... [more] |
RCS2015-226 pp.215-220 |
WBS, MICT |
2015-07-22 11:50 |
Nara |
Nara Institute of Science and Technology |
On a bent type ZCZ code and its application to CDMA Shinya Matsufuji (Yamaguchi Univ.), Takafumi Hayashi (Univ. of Aizu), Sho Kuroda (FX Systems), Yuta Ida, Takahiro Matsumoto (Yamaguchi Univ.) WBS2015-26 MICT2015-30 |
This paper defines a set of sequences with a zero correlation zone, that their Fourier transform over GF(p) of correspon... [more] |
WBS2015-26 MICT2015-30 pp.69-74 |
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 |
ISEC, IT, WBS |
2015-03-02 17:05 |
Fukuoka |
The University of Kitakyushu |
On Block Spreading ZCZ-CDMA for High-Speed Transmission Sho Kuroda (FX Systems), Kazuhiro Kobayashi, Yuta Ida, Takahiro Matsumoto, Shinya Matsufuji (Yamaguchi Univ.) IT2014-89 ISEC2014-102 WBS2014-81 |
ZCZ-CDMA with a block spreading technique (BC-ZCZ-CDMA), that a data block is decoded by using a spreading sequence with... [more] |
IT2014-89 ISEC2014-102 WBS2014-81 pp.173-178 |
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 |
SAT |
2014-10-24 16:20 |
Overseas |
Hae-un-dae Grand Hotel, Busan, Korea |
A Proposal for Aircraft Tracking Satellite System
-- Never to repeat the disaster of MH370 -- Osamu Ichiyoshi (HNB21C) SAT2014-49 |
Malaysian Airways Flight370 (MH370) lost contact with the air traffic controllers on 8, March, 2014 and was never discov... [more] |
SAT2014-49 pp.183-188 |
RCC, ASN, NS, RCS, SR (Joint) |
2014-07-30 13:30 |
Kyoto |
Kyoto Terrsa |
Joint Frequency-Domain Equalization and De-spreading Based on Belief Propagation for Multi-Code Direct Sequence Spread Spectrum Transmission Hiroyuki Miyazaki, Fumiyuki Adachi (Tohoku Univ.) RCS2014-89 |
Multi-code direct sequence spread spectrum (DSSS) transmission suffers from residual inter-code interference (ICI) after... [more] |
RCS2014-89 pp.1-6 |