Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCC, ISEC, IT, WBS |
2024-03-13 - 2024-03-14 |
Osaka |
Osaka Univ. (Suita Campus) |
A selection method of candidate constellation for the superimposed QAM signal method to reduce PAPR in OFDM system Takashi Aoki, Tsuyoshi Arai, Hiroshi Inai, Hideaki Wakabayashi (Okayama Prefectural Univ.) IT2023-122 ISEC2023-121 WBS2023-110 RCC2023-104 |
Modulated signal of Orthogonal Frequency Division Multiplexing (OFDM) systems tend to have a large peak-to-average power... [more] |
IT2023-122 ISEC2023-121 WBS2023-110 RCC2023-104 pp.294-299 |
IN, IA (Joint) |
2021-12-17 10:15 |
Hiroshima |
Higashi-Senda campus, Hiroshima Univ. (Primary: On-site, Secondary: Online) |
Improvement of delay reduction technology for fighting games using P2P communication Satoshi Shochiku, Hiroshi Inai, Tsuyoshi Arai, Hideaki Wakabayashi (Okayama Pref. Univ.) IN2021-21 |
In recent years, fighting games have been played all over the world, and through the use of the Internet, it is possible... [more] |
IN2021-21 pp.17-21 |
WBS, RCC, SAT, MICT (Joint) [detail] |
2021-05-21 10:10 |
Online |
Online (Zoom) |
PAPR characteristic of OFDM signal using QAM with a many-to-one mapping Takuma Kakiuchi, Tsuyoshi Arai, Hiroshi Inai, Hideaki Wakabayashi (Okayama Pref. Univ.) WBS2021-14 RCC2021-14 SAT2021-12 MICT2021-10 |
OFDM signals have high PAPR due to the nature of adding many subcarrier signals together. In this study, we focused on s... [more] |
WBS2021-14 RCC2021-14 SAT2021-12 MICT2021-10 pp.72-76(WBS), pp.72-76(RCC), pp.60-64(SAT), pp.50-54(MICT) |
CQ, CBE (Joint) |
2020-01-16 11:30 |
Tokyo |
NHK Science & Technology Research Laboratories |
Throughput improvement by enhancing the transmission probability and estimation method for the number of contenders under p-persistent CSMA/CA Kohei Futsuki (Okayama Pref. Univ. Grad. Sch.), Hiroshi Inai, Tsuyoshi Arai, Hideaki Wakabayashi (Okayama Pref. Univ.) CQ2019-114 |
The probability p of p-persistent CSMA/CA to maximize the throughput can be calculated from the packet length and the nu... [more] |
CQ2019-114 pp.41-45 |
CQ, CBE (Joint) |
2020-01-16 11:50 |
Tokyo |
NHK Science & Technology Research Laboratories |
An access method using fixed contention window in wireless LANs Yamato Watanabe, Hroshi Inai, Hideaki Wakabayashi, Tsuyoshi Arai (Okayama Pref. Univ.) CQ2019-115 |
In Wireless LANs, DCF is adopted as a standard access method.
In DCF, each node has a random waiting time within the ra... [more] |
CQ2019-115 pp.47-50 |
WBS |
2012-07-26 10:00 |
Aichi |
Nagoya Univ. |
[Poster Presentation]
A study on PAPR reduction for the three-valued OFDM signal Takuya Nakashima, Tsuyoshi Arai, Hiroshi Inai (Okayama Pref. Univ.) WBS2012-20 |
OFDM (Orthogonal Frequency Division Multiplexing) is a digital
modulation technique. The transmitted signal consists o... [more] |
WBS2012-20 pp.59-63 |
WBS |
2012-07-26 10:00 |
Aichi |
Nagoya Univ. |
[Poster Presentation]
Performance Evaluation of CSK Spread ALOHA with SIC under Nakagami-Rice fading Keisuke Sogo, Tsuyoshi Arai, Hiroshi Inai (Okayama Pref. Univ.) WBS2012-21 |
CSK Spread ALOHA system, combined Spread ALOHA system with Code Shift Keying (CSK), can improve the maximum throughput ... [more] |
WBS2012-21 pp.65-70 |
WBS |
2012-07-26 10:00 |
Aichi |
Nagoya Univ. |
[Poster Presentation]
PAPR reduction method for PC-OFDM system Tsuyoshi Arai (Okayama Pref. Univ.), Kouji Ohuchi, Syota Nishihara (Shizuoka Univ.) WBS2012-22 |
The Orthogonal Frequency Division Multiplexing (OFDM)
signal consists of many modulated orthogonal sub-carrier signals... [more] |
WBS2012-22 p.71 |
NS, PN (Joint) |
2007-12-21 09:45 |
Chiba |
Chiba Univ. |
A Connection Admission Control Method for Web Server Systems. Shinsuke Satake, Hiroshi Inai, Tsuyoshi Arai (Okayama Pref Univ.) NS2007-112 |
This paper proposes a connection admission control method for web sever systems.
The method is aimed to reduce the conn... [more] |
NS2007-112 pp.37-42 |
RCS, IN (Joint) |
2007-05-17 13:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
A Connection Admission Control Method for Web Server Systems Shinsuke Satake, Hiroshi Inai, Tsuyoshi Arai (Okayama Pref Univ.) IN2007-1 |
This paper proposes a connection admission control method for web sever systems.
The method is aimed to reduce the mean... [more] |
IN2007-1 pp.1-5 |
WBS |
2006-12-14 11:20 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Influence of multi-user interference on the Three-valued Spread ALOHA System Yusuke Ogose, Tsuyoshi Arai, Hiroshi Inai (Okayama Prefectural Univ.), Hiromasa Habuchi (Ibaraki Univ.) |
[more] |
WBS2006-37 pp.13-18 |
SAT |
2006-10-20 11:40 |
Overseas |
KAL Hotel (Jeju-Do, Korea) |
Measurement of atmospheric turbulence in a ground-to-low earth orbit optical link Morio Toyoshima, Hiroo Kunimori (NICT), Takashi Jono, Yoshihisa Takayama, Katsuyoshi Arai (JAXA) |
Ground-to-satellite laser communication experiments between the optical ground station located in the Koganei ward of do... [more] |
|
SANE |
2006-06-22 10:00 |
Ibaraki |
JAXA(Tsukuba) |
On-orbit operation results of Optcal Inter-orbit Communications Engineering Test Satellite (OICETS) Masaaki Mokuno, Takashi Jono, Yoshihisa Takayama, Koichi Ohinata, Nobuhiro Kura, Yuuichi Fujiwara, Toshihiko Yamawaki, Shigeru Usuki, Katsuyoshi Arai (JAXA), Kenichi Ikebe, Koichi Shiratama, Naoto Ogura, Ichiro Mase (NT Space), Koetsu Fujiwara, Yasuhiro Toyota (NAS) SANE2006-76 |
Japan Aerospace Exploration Agency (JAXA) launched Optical Inter-orbit Communications Engineering Test Satellite (OICETS... [more] |
SANE2006-76 pp.57-62 |
SANE |
2006-06-22 10:25 |
Ibaraki |
JAXA(Tsukuba) |
On-orbit test results of Laser Utilizing Communications Equipment (LUCE) on Optical Inter-orbit Communications Engineering Test Satellite (OICETS) Koichi Shiratama, Mitsue Aizono, Takeo Kumagai, Kenichi Ikebe, Ichiro Mase (NT Space), Takashi Jono, Yoshihisa Takayama, Koichi Ohinata, Nobuhiro Kura, Yoshisada Koyama, Katsuyoshi Arai (JAXA), Junya Abe (SED) SANE2006-77 |
Optical Inter-orbit Communications Engineering Test Satellite (OICETS “Kirari”) was launched on August 24, 2005, in orde... [more] |
SANE2006-77 pp.63-68 |
SANE |
2006-06-22 11:15 |
Ibaraki |
JAXA(Tsukuba) |
Preliminary results of Kirari optical communication demonstration experiments with NICT optical ground station (KODEN) Morio Toyoshima, Toshiaki Kuri, Werner Klaus, Masahiro Toyoda, Hiroo Kunimori (NICT), Takashi Jono, Yoshihisa Takayama, Nobuhiro Kura, Koichi Ohinata, Katsuyoshi Arai (JAXA), Koichi Shiratama, Kenichi Ikebe, Ichiro Mase (NTSpace), Junya Abe (SED) SANE2006-79 |
In-orbit verification of the inter-orbit optical communication link experiment between the Optical Inter-orbit Communica... [more] |
SANE2006-79 pp.75-80 |
SIP, WBS |
2005-07-15 11:15 |
Ehime |
Ehime Univ. |
Throughput Performance of the TH-PSM ALOHA System Fumie Ono (Tokyo Univ. of Science), Hiromasa Habuchi (Ibaraki Univ.), Tsuyoshi Arai (Okayama Prefectural Univ.) |
[more] |
SIP2005-65 WBS2005-23 pp.11-14 |
CS, CAS, SIP |
2005-03-14 13:55 |
Okayama |
Okayama Prefectural University |
Proposal of a TH-PSM ALOHA System Fumie Ono (Tokyo Univ. of Science), Hiromasa Habuchi (Ibaraki Univ.), Tsuyoshi Arai (Okayama Prefectural Univ.) |
[more] |
CAS2004-84 SIP2004-127 CS2004-220 pp.17-20 |
CS, CAS, SIP |
2005-03-14 14:20 |
Okayama |
Okayama Prefectural University |
A study of spread ALOHA system with three-valued signaling and code shift keying Yusuke Ogose, Tsuyoshi Arai (Okayam Pref Univ.), Hiromasa Habuchi (Ibaraki Univ.), Hiroshi Inai (Okayam Pref Univ.) |
[more] |
CAS2004-85 SIP2004-128 CS2004-221 pp.21-26 |