Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
SAT, SANE (Joint) |
2024-02-09 12:05 |
Kagoshima |
AmaHome PLAZA (Amami City Shimin Koryu Center) (Primary: On-site, Secondary: Online) |
[Short Paper]
Optimal Balance between Throughput and Beam radius for Multi-beam Satellite Communications for Air and Ship service Ryu Tsuha, Katsuya Nakahira (NIT Okinawa) SAT2023-75 |
Satellite communications are used on ships and aircraft due to the difficulty of using terrestrial communications networ... [more] |
SAT2023-75 pp.78-81 |
SANE, SAT (Joint) |
2023-03-02 09:50 |
Okinawa |
(Primary: On-site, Secondary: Online) |
Maximize satellite communication bit rate by optimizing multi-beam placement, power and frequency band Ryu Tsuha, Rin Nakama (NIT Okinawa), Watabe Kohei (NUT), Katsuya Nakahira (NIT Okinawa) SAT2022-56 |
[more] |
SAT2022-56 pp.7-11 |
SAT, SANE (Joint) |
2022-02-25 09:30 |
Online |
Online |
Bandwidth and Power Allocation for a Multi-beam Satellite Communication System in the Japanese Islands Shun Okuhama (ONCT), Kohei Watabe (NUT), Katsuya Nakahira (ONCT) SAT2021-62 |
Multi-beam systems have become the mainstream for satellite communications because they can make effective use of freque... [more] |
SAT2021-62 pp.57-61 |
SANE, SAT (Joint) |
2017-02-23 15:05 |
Chiba |
Katsuura Hotel Mikazuki |
PAPR Characteristics of Spectrum Suppressed Transmission for Single Carrier Modulation Motoi Shirai, Takatoshi Sugiyama (Kogakuin Univ), Katsuya Nakahira (NTT) SAT2016-67 |
Spectrum suppression transmission to increase frequency utilization efficiency by suppressing required bandwidth has bee... [more] |
SAT2016-67 pp.35-40 |
SR |
2016-10-27 15:00 |
Osaka |
Osaka Univ. Nakanoshima Center |
[Technology Exhibit]
Realtime Throughput Estimation Using Depth Images for mmWave Communications Hironao Okamoto, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Daisuke Murayama, Katsuya Nakahira (NTT) SR2016-55 |
The human blockage problem is an open issue in next-generation wireless access networks using millimeter-wave (mmWave) c... [more] |
SR2016-55 pp.1-6 |
SAT |
2016-10-13 13:00 |
Overseas |
Incheon Univ. Songdo R104, Auditorium & Performing Place |
Multi-beam Satellite Resource Control Method using Spectrum Suppressed Transmission Katsuya Nakahira, Daisuke Murayama, Kohei Suzaki (NTT) SAT2016-54 |
[more] |
SAT2016-54 pp.25-29 |
SRW |
2016-08-22 09:50 |
Chiba |
Nihon Univ. (Tsudanuma Campus) |
Study on OFDM synchronization method of post-FFT blind adaptive array in the low SIR Kouhei Suzaki, Hideya So, Katsuya Nakahira, Tadao Nakagawa (NTT) SRW2016-35 |
[more] |
SRW2016-35 pp.13-18 |
SAT, RCS (Joint) |
2016-08-18 11:25 |
Miyagi |
Tohoku Gakuin University |
[Encouragement Talk]
Research and Development on Dynamic Frequency Control Technologies for High-Capacity Satellite Communications Katsuya Nakahira, Jun-ichi Abe, Jun Mashino (NTT) SAT2016-33 |
[more] |
SAT2016-33 pp.1-6 |
MoNA |
2016-08-01 10:55 |
Hyogo |
Takigawa Memorial Hall (Kobe University) |
Throughput Model for mmWave Wireless LAN and Optimal Access Point Deployment under Human Blockage Akihiro Egami, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Daisuke Murayama, Katsuya Nakahira (NTT) MoNA2016-7 |
Millimeter-wave (mmWave) based wireless local area networks has attracted attention due to the high capacity. Since the ... [more] |
MoNA2016-7 pp.7-12 |
MoNA |
2016-08-02 09:50 |
Hyogo |
Takigawa Memorial Hall (Kobe University) |
[Encouragement Talk]
Medium Access Control Scheme for WLAN with Long Propagation Delay
-- Throughput and Fairness Improvement in Coexisting Environment -- Kaito Funabiki, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Daisuke Murayama, Katsuya Nakahira (NTT) MoNA2016-16 |
In the radio over fiber (RoF) wireless local area networks (WLANs), there are long propagation delay between access poin... [more] |
MoNA2016-16 pp.47-52 |
AP, SAT, SANE (Joint) |
2016-07-21 10:20 |
Hokkaido |
Otaru port marina |
A proposal on the alleviation of undesired side-robe radiation by ISI in the distributed array antenna system Kouhei Suzaki, Hideya So, Daisuke Goto, Fumihiro Yamashita, Katsuya Nakahira (NTT) SAT2016-13 |
[more] |
SAT2016-13 pp.13-18 |
SAT, WBS (Joint) |
2016-05-19 13:35 |
Aichi |
Nagoya Institute of Technology |
Proposal of a novel Resource Control Technique based on Spectrum Suppressed Transmission for Multi-beam SATCOM systems Katsuya Nakahira, Daisuke Murayama, Kouhei Suzaki, Jun-ichi Abe, Tadao Nakagawa (NTT) SAT2016-5 |
[more] |
SAT2016-5 pp.25-30 |
RCS, CCS, SR, SRW (Joint) |
2016-03-03 09:00 |
Tokyo |
Tokyo Institute of Technology |
Adaptive Transmission Control Scheme for WLAN with Long Propagation Delay Kaito Funabiki, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Daisuke Murayama, Katsuya Nakahira (NTT) SRW2015-88 |
[more] |
SRW2015-88 pp.101-106 |
MoNA, IN (Joint) |
2015-11-18 11:10 |
Kumamoto |
Kumamoto University |
A Study of Medium Access Control Scheme for WLAN with Large Propagation Delay Coexisting with Legacy WLAN Kaito Funabiki, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Daisuke Murayama, Takayuki Murayama, Katsuya Nakahira (NTT) MoNA2015-32 |
Long propagation delay is caused in long distance wireless local area networks (WLANs) and WLANs with a radio-over-fiber... [more] |
MoNA2015-32 pp.59-64 |
AP, RCS, WPT, SAT (Joint) |
2015-11-05 15:35 |
Okinawa |
Okinawa Prefectural Museum & Art Museum |
Time delay compensation method by the interpolation signal generation between the antennas in distributed array antenna for broadband system Kouhei Suzaki, Hideya So, Daisuke Goto, Yoshinori Suzuki, Fumihiro Yamashita, Katsuya Nakahira, Kiyoshi Kobayashi (NTT) SAT2015-58 |
[more] |
SAT2015-58 pp.57-62 |
CS |
2015-07-03 13:55 |
Okinawa |
Eef Information Plaza (Kumejima Is.) |
Efficient Transmission Control Algorithm to Use Blind Adaptive Array Interference Suppression Technique Daisuke Murayama, Katsuya Nakahira (NTT) CS2015-31 |
We propose a system concept in which the blind adaptive arrays technique is applied to central control radio access syst... [more] |
CS2015-31 pp.119-123 |
WBS, SAT (Joint) |
2015-05-29 13:00 |
Tokyo |
Tokyo City Univ. (Setagaya Campus) |
Field Trials on Dynamic Spectrum Control SATCOM System
-- Direct Spectrum Division Transmission -- Jun-ichi Abe, Kouhei Suzaki, Ryo Miyatake, Jun Mashino, Katsuya Nakahira, Takatoshi Sugiyama (NTT) SAT2015-8 |
[more] |
SAT2015-8 pp.43-48 |
WBS, SAT (Joint) |
2015-05-29 13:25 |
Tokyo |
Tokyo City Univ. (Setagaya Campus) |
Field Trials on Spectrum Control SATCOM System
-- Spectrum Suppressed Transmission -- Jun Mashino, Jun-ichi Abe, Katsuya Nakahira, Takatoshi Sugiyama (NTT) SAT2015-9 |
We have proposed the spectrum control satellite communication system based on an existence communication satellite that ... [more] |
SAT2015-9 pp.49-54 |
WBS, SAT (Joint) |
2015-05-29 13:50 |
Tokyo |
Tokyo City Univ. (Setagaya Campus) |
Field Trials on Spectrum Control SATCOM System
-- Channel Assignment Technology -- Katsuya Nakahira, Hisayoshi Kano, Jun-ichi Abe, Jun Mashino, Takatoshi Sugiyama (NTT), Masanori Yofune, Kazuto Yano, Julian Webber (ATR) SAT2015-10 |
[more] |
SAT2015-10 pp.55-60 |
SANE, SAT (Joint) |
2015-02-18 14:45 |
Okinawa |
Okinawaken Shichoson Jichikaikan |
Resource Transfer SATCOM Channel Assignment Method using Spectrum Division and Suppression Transmission Katsuya Nakahira, Jun-ichi Abe, Jun Mashino, Takatoshi Sugiyama (NTT) SAT2014-56 |
[more] |
SAT2014-56 pp.31-36 |