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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 23  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2023-10-19
10:55
Kagawa Kagawa University (Saiwai-cho Campus), and online
(Primary: On-site, Secondary: Online)
Fractional Spreading Factor for LoRa Signals and Its Demodulation Algorithm
Ryoya Saito, Koichi Adachi, Takeo Fujii, Ryota Kumada (UEC) RCS2023-129
Recently, long-range wide area network (LoRaWAN), a low power wide area network (LPWAN) technology that facilitates long... [more] RCS2023-129
pp.7-12
MIKA
(3rd)
2023-10-11
14:30
Okinawa Okinawa Jichikaikan
(Primary: On-site, Secondary: Online)
[Poster Presentation] Experiment-based Evaluation of Three-dimensional Positioning using LPWAN at Construction Site, Part-II
Kyosuke Nakano, Osamu Muta (Kyushu Univ.), Takuto Watanabe, Naohiro Ikeda (Tokyu Construction Co., Ltd.)
Information and communication technologies have been made use in construction sites recently. At large-scale constructio... [more]
CQ, MIKA
(Joint)
2023-08-31
16:55
Fukushima Tenjin-Misaki Sports Park Position Estimation Using LPWAN toward Non-Line-of-sight Three-dimensional Positioning at Construction Sites
Kyosuke Nakano, Osamu Muta (Kyushu Univ.), Takuto Watanabe, Naohiro Watanabe (Tokyu Construction Co., Ltd.) CQ2023-31
Information and communication technologies have been made use in construction sites recently. At large-scale constructio... [more] CQ2023-31
pp.32-37
SR 2023-05-11
13:25
Hokkaido Center of lifelong learning Kiran (Higashi Muroran)
(Primary: On-site, Secondary: Online)
LPWA concentrator using multi-antenna beamforming
Keigo Saito, Takeo Fujii, Koji Ishibashi (UEC), Yu Shibata, Soma Toki, Hideki Endo (Tokyo Gas) SR2023-6
In recent years, information aggregation by wireless sensor network (WSN) has been attracted attention. WSN consists of ... [more] SR2023-6
pp.33-40
RCC, ISEC, IT, WBS 2023-03-14
14:55
Yamaguchi
(Primary: On-site, Secondary: Online)

Kaito Ootsu, Shan Lu, Hiroshi Kamabe (Gifu Univ) IT2022-104 ISEC2022-83 WBS2022-101 RCC2022-101
The LoRaWAN (Long Range Wide Area Network) is a type of LPWAN communication protocol that is gaining attention due to it... [more] IT2022-104 ISEC2022-83 WBS2022-101 RCC2022-101
pp.230-235
SR, UWT
(Joint)
2023-01-26
13:00
Tokyo Takanawa Campus, Tokai Univ.
(Primary: On-site, Secondary: Online)
[Short Paper] Water Level Monitoring System based on 429MHz LoRa with Packet Level Index Modulation
Yudai Koike, Keita Takeda, Osamu Takyu (Shishu Univ.) SR2022-71
In recent years, abnormal weather events such as guerrilla torrential rains have been increasing, and flood damage is al... [more] SR2022-71
pp.1-6
RCS, NS
(Joint)
2022-12-16
09:55
Aichi Nagoya Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
Position Estimation Using 920MHz-band LoRaWAN toward Three-dimensional Positioning at Construction Sites
Kyosuke Nakano, Takahiro Inoue, Osamu Muta (Kyushu Univ.), Takuto Watanabe, Naohiro Ikeda (Tokyu Construction Co., Ltd.) RCS2022-199
Information and communication technologies have been made use in construction sites recently. At large-scale constructio... [more] RCS2022-199
pp.75-80
RCS, AP, UWT
(Joint)
2022-11-15
09:55
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
Packet-Level Index Modulation in Duty Cycle Constraints for Each Frequency Channel
Hiroto Shida, Kosuke Suzuki, Koichi Adachi (UEC), Osamu Takyu (Shinshu Univ.), Mai Ohta (Fukuoka Univ.), Takeo Fujii (UEC) RCS2022-156
(To be available after the conference date) [more] RCS2022-156
pp.7-12
RCS, AP, UWT
(Joint)
2022-11-16
14:30
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
Floor Height Estimation Using 920 MHz-band LoRaWAN for Three-dimensional Position Estimation at Construction Sites
Takahiro Inoue, Kyosuke Nakano, Osamu Muta (Kyushu Univ), Takuto Watanabe, Naohiro Ikeda (TOKYU CONSTRUCTION) RCS2022-169
Information and communication technologies have been made use in construction sites recently. At large-scale constructio... [more] RCS2022-169
pp.85-90
SAT, RCS
(Joint)
2022-08-26
10:40
Hokkaido
(Primary: On-site, Secondary: Online)
Channel Activity Detection Based Index Mapping Scheme for Packet-Level Index Modulation
Kosuke Suzuki, Koichi Adachi (UEC), Mai Ohta (Fukuoka Univ.), Osamu Takyu (Shinshu Univ.), Takeo Fujii (UEC) RCS2022-122
Long range wide area network (LoRaWAN) attracts attention due to its ability to realize massive machine-type communicati... [more] RCS2022-122
pp.144-149
IN, RCS, NV
(Joint)
2022-05-26
09:30
Kanagawa Keio University (Hiyoshi Campus)
(Primary: On-site, Secondary: Online)
LiCo: Toward Lightweight Resolution of Signal Collisions in LoRaWAN
Chenglong Shao, Osamu Muta (Kyushu Univ.) RCS2022-13
While Long Range Wide Area Network (LoRaWAN) has gathered remarkable attention, it experiences frequent LoRa signal coll... [more] RCS2022-13
pp.1-6
RCS, NS
(Joint)
2021-12-16
11:00
Nara Nara-ken Bunka Kaikan and Online
(Primary: On-site, Secondary: Online)
Flexible Index Mapping Scheme for Packet-Level Index Modulation
Kosuke Suzuki, Koichi Adachi (UEC), Mai Ohta (Fukuoka Univ.), Osamu Takyu (Shinshu Univ.), Takeo Fujii (UEC) RCS2021-176
Long range wide area network (LoRaWAN) attracts attention due to its ability to realize massive machine-type communicati... [more] RCS2021-176
pp.7-12
CQ, MIKA
(Joint)
2021-09-10
09:50
Online Online Dude, Are You Approaching Me? Detecting Close Physical Contact via Unlicensed LPWAN Signals
Chenglong Shao, Osamu Muta (Kyushu Univ.) CQ2021-51
Recognizing if two objects are in close physical contact (CPC) is the basis of various Internet-of-Mobile-Things service... [more] CQ2021-51
pp.65-70
SR 2021-05-21
11:15
Online Online Channel Allocation for LoRaWAN Considering Intra-System and Inter-System Interferences
Shinichiro Kakuda, Yudai Yamazaki, Keita Katagiri, Takeo Fujii (UEC), Osamu Takyu (Shinshu Univ.), Mai Ohta (Fukuoka Univ.), Koichi Adachi (UEC) SR2021-12
In low power wide area network (LPWAN), intra-system and inter-system interferences have become a crucial issue due to a... [more] SR2021-12
pp.79-85
NS, IN
(Joint)
2020-03-05
09:50
Okinawa Royal Hotel Okinawa Zanpa-Misaki
(Cancelled but technical report was issued)
Efficient LPWA network coverage method inspired from satellite behavior of Japanese tree frogs
Yushi Hosokawa, Daichi Kominami (Osaka Univ.), Ikkyu Aihara (Univ. of Tsukuba), Masayuki Murata (Osaka Univ.) IN2019-86
There have been many studies on biomimetics have applied swarm intelligence to network control. For that purpose, we are... [more] IN2019-86
pp.61-66
RCS, SR, SRW
(Joint)
2020-03-06
15:10
Tokyo Tokyo Institute of Technology
(Cancelled but technical report was issued)
[Invited Lecture] Resource Allocation Strategy for LoRa Networks under Imperfect Spreading Factor Orthogonality
Megumi Kaneko (NII) RCS2019-395
Low-Power Wide-Area Network (LPWAN) based on LoRa physical layer is envisioned as one of the most promising technologies... [more] RCS2019-395
p.379
SR 2019-11-05
10:50
Overseas Rutgers University Inn & Conference Center, NJ, USA [Poster Presentation] Evaluation of radio propagation characteristics with Various Antenna High for 920MHz frequency sharing
Ryota Sugimoto, Osamu Takyu (Shinshu Univ.), Koichi Adachi (UEC), Mai Ohta (Fukuoka Univ.), Takeo Fujii (UEC) SR2019-79
LPWAN is widely used for IoT because it can communicate over long distances and with low power consumption. However, whe... [more] SR2019-79
pp.41-42
CCS, IN
(Joint)
2019-08-01
16:55
Hokkaido KIKI SHIRETOKO NATURAL RESORT [Invited Talk] Aero, Terra, Human: Next Generation Disaster Response Platform
Mianxiong Dong (Muroran IT) IN2019-17
Information services are playing a very important role in digital/virtual asset protection and crucial phase during disa... [more] IN2019-17
p.19
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-11
13:00
Osaka I-Site Nanba(Osaka) [Invited Lecture] *
Takeshi Ogawa (Tokyo Denki Univ.) RCC2019-37 NS2019-73 RCS2019-130 SR2019-49 SeMI2019-46
The cloud is expected to realize advanced IoT services by using IoT machines such as many sensors installed outdoors. Al... [more] RCC2019-37 NS2019-73 RCS2019-130 SR2019-49 SeMI2019-46
pp.125-126(RCC), pp.151-152(NS), pp.147-148(RCS), pp.157-158(SR), pp.139-140(SeMI)
RCS 2019-06-19
09:50
Okinawa Miyakojima Hirara Port Terminal Building Indoor Path Loss Measurements at 900 MHz Band Using LoRaWAN Terminals
Wakaba Tsujimoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.) RCS2019-39
Among low power wide area networks (LPWANs) which offer a power-saving transmission with a wide area coverage at low cos... [more] RCS2019-39
pp.13-18
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