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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 114  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
IN, RCS, NV
(Joint)
2020-05-22
09:30
Online Online A Study on antenna selection criterion for adaptive array antenna based on selecting antenna elements
Takahiro Suzuki, Kenta Umebayashi (TUAT), Quang-Doanh Vu (UoO) RCS2020-18
 [more] RCS2020-18
pp.43-48
RCS, SR, SRW
(Joint)
2020-03-06
13:30
Tokyo Tokyo Institute of Technology [Poster Presentation] Measurement Results of 920MHz LoRa Propagation at Half Wavelength Intervals
Natsuki Miyoshi, Shusuke Narieda (Mie Univ.), Takeo Fujii (UEC), Kenta Umebayashi (TUAT), Hiroshi Naruse (Mie Univ.) RCS2019-406 SR2019-140 SRW2019-90
 [more] RCS2019-406 SR2019-140 SRW2019-90
pp.411-412(RCS), pp.135-136(SR), pp.135-136(SRW)
RCS, SR, SRW
(Joint)
2020-03-06
13:30
Tokyo Tokyo Institute of Technology [Poster Presentation] Monitoring of Environmental Information Based on 920MHz LoRa Networks
Ayumi Kaichi, Shusuke Narieda (Mie Univ.), Takeo Fujii (UEC), Kenta Umebayashi (TUAT), Hiroshi Naruse (Mie Univ.) RCS2019-407 SR2019-141 SRW2019-91
 [more] RCS2019-407 SR2019-141 SRW2019-91
pp.413-414(RCS), pp.137-138(SR), pp.137-138(SRW)
CS, CAS 2020-02-28
10:15
Kumamoto   Spreading Factor Allocation for End Device Lifetime Extension in LoRa Networks
Shusuke Narieda (Mie Univ.), Takeo Fujii (UEC), Kenta Umebayashi (TUAT) CAS2019-116 CS2019-116
 [more] CAS2019-116 CS2019-116
pp.105-110
SR 2019-12-05
13:50
Okinawa Ishigaki City Hall (Ishigaki Island) [Poster Presentation] 920MHz-band LoRa Radiowave Propagation Measurement Results on Each Floor in Indoor Environment
Taro Miyamoto, Shusuke Narieda (Mie Univ.), Takeo Fujii (UEC), Kenta Umebayashi (TUAT), Hiroshi Naruse (Mie Univ.) SR2019-95
 [more] SR2019-95
pp.45-46
SR 2019-12-06
10:25
Okinawa Ishigaki City Hall (Ishigaki Island) Signal Detection Theorem Based Approximated Analysis for LoRa Network Performances with LBT
Shusuke Narieda (Mie Univ.), Takeo Fujii (UEC), Kenta Umebayashi (TUAT) SR2019-101
 [more] SR2019-101
pp.69-73
SR 2019-12-06
10:50
Okinawa Ishigaki City Hall (Ishigaki Island) A Study on Setting of an Energy Detection Threshold with SNR Estimation
Hiroki Iwata, Kenta Umebayashi (TUAT) SR2019-102
Energy detection (ED) is a popular signal detection method for spectrum sensing and spectrum usage
measurement in dynam... [more]
SR2019-102
pp.75-82
SR 2019-12-06
11:15
Okinawa Ishigaki City Hall (Ishigaki Island) Energy Detection for M-QAM Signal
Shun Ishihara, Kenta Umebayashi (TUAT), Janne Lehtomaki (UOO) SR2019-103
In this paper, we address energy detection for M-ary quadrature amplitude modulation (QAM) signal.
Typically, statisti... [more]
SR2019-103
pp.83-86
SR 2019-12-06
16:15
Okinawa Ishigaki City Hall (Ishigaki Island) Energy Constrained Optimization for Spreading Factor Allocation in Unslotted ALOHA Based LoRa Networks
Shusuke Narieda (Mie Univ.), Takeo Fujii (UEC), Kenta Umebayashi (TUAT) SR2019-110
 [more] SR2019-110
pp.131-136
RISING
(2nd)
2019-11-26
10:30
Tokyo Fukutake Learning Theater, Hongo Campus, Univ. Tokyo [Poster Presentation] Energy detection for M-QAM signal
Shun Ishihara, Kenta Umebayashi (TUAT), Janne Lehtomaki (UOO)
In this presentation, we address energy detection for M-ary quadrature amplitude modulation (QAM) signal. Typically, sta... [more]
RISING
(2nd)
2019-11-26
10:30
Tokyo Fukutake Learning Theater, Hongo Campus, Univ. Tokyo [Invited Lecture] Development of a Spectrum Usage Measurement System for Dynamic Spectrum Sharing
Hiroki Iwata, Ahmed Al-Tahmeesschi, Kenta Umebayashi (TUAT)
In dynamic spectrum sharing, statistical information in terms of spectrum usage such as spectrum occupancy
rate is usef... [more]

RISING
(2nd)
2019-11-26
14:10
Tokyo Fukutake Learning Theater, Hongo Campus, Univ. Tokyo [Poster Presentation] Spectrum Occupancy Prediction based on Recurrent Neural Network with State Identification
Yoshiki Kasahara, Hiroki Iwata, Ahmed Al-Tahmeesschi, Kenta Umebayashi (TUAT)
 [more]
SR 2019-11-04
11:00
Overseas Rutgers University Inn & Conference Center, NJ, USA [Poster Presentation] An Efficient Noise Floor Estimation for Spectrum Measurements
Hiroki Iwata, Kenta Umebayashi (TUAT) SR2019-68
Statistical information in terms of spectrum occupancy is useful for the smart dynamic spectrum sharing and it can be ob... [more] SR2019-68
pp.9-16
RCS, SAT
(Joint)
2019-08-23
14:20
Aichi Nagoya University [Invited Lecture] Development of IoT Integrated Wireless Sensor Networks
Shusuke Narieda (Mie Univ.), Takeo Fujii (UEC), Kenta Umebayashi (TUAT) SAT2019-43 RCS2019-172
 [more] SAT2019-43 RCS2019-172
p.131(SAT), p.129(RCS)
SRW 2019-08-19
11:15
Aichi Tanzan University [Invited Lecture] Spreading Factor Allocation for Carrier Sensed LoRa Networks
Shusuke Narieda (Mie Univ.), Takeo Fujii (UEC), Kenta Umebayashi (TUAT) SRW2019-17
 [more] SRW2019-17
pp.25-28
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-11
09:35
Osaka I-Site Nanba(Osaka) A study on Auto-Regressive modeling of Duty Cycle
Kohei Okawa, Hiroki Iwata, Kenta Umebayashi (Tokyo Univ. of Agriculture and Tech.), Janne Lehtomäki (Univ. of Oulu), Miguel López-Benítez (Univ. of Liver), Satya Joshi (Univ. of Oulu) SR2019-29
In dynamic spectrum sharing, it is useful to exploit statistical information on spectrum usage.
In this paper, we inve... [more]
SR2019-29
pp.59-64
SR 2019-05-31
10:00
Tokyo Tokyo Big Sight [Technology Exhibit] Development of Cooperative Spectrum Usage Measurement System Prototype for Smart Spectrum Access
Hiroki Iwata, Kenta Umebayashi (TUAT) SR2019-16
In Smart spectrum access (SSA), it is required to realize high-accurate spectrum usage measurements over the long-term, ... [more] SR2019-16
pp.97-103
SR 2019-05-31
10:00
Tokyo Tokyo Big Sight [Technology Exhibit] A study on evaluation method by smart phone application in WLAN channels
Yoshinori Yahiro, Hiroto Ebisawa, Kenta Umebayashi (TUAT) SR2019-19
A smart phone application for wifi analysis is given as a tool to easily investigate the radio wave environment.In this ... [more] SR2019-19
pp.113-118
RCS, SR, SRW
(Joint)
2019-03-06
14:35
Kanagawa YRP Evaluation for Radiowave Propagation Characteristics of LoRa/LoRaWAN Based on Outage Analyses
Kenta Inagaki, Shusuke Narieda (Mie Univ.), Takeo Fujii (UEC), Kenta Umebayashi (TUAT), Hiroshi Naruse (Mie Univ.) SR2018-125
 [more] SR2018-125
pp.31-36
SR 2019-01-25
16:40
Fukushima Corasse, Fukushima city (Fukushima prefecture) A study on widely acceptable model for spectrum usage
Kento Yamada, Kenta Umebayashi (TUAT) SR2018-119
We investigate a flexible and scalable spectrum usage model in time domain for an enhanced dynamic spectrum access (DSA)... [more] SR2018-119
pp.141-147
 Results 1 - 20 of 114  /  [Next]  
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