Zobrazeno 1 - 10 of 55 pro vyhledávání: '"Toshihiko Hamasaki"'
3
Analysis of a Sub-GHz-Band Diffraction Propagation Model for Maritime Application
Autor: Toshihiko Hamasaki, Hiroki Ichiba, Yuji Ito
Publikováno v: 2021 USNC-URSI Radio Science Meeting (USCN-URSI RSM).
In this paper, a low-power wide-area wireless system is used to obtain an appropriate model for sub-GHz-band radio propagation diffraction loss in a multi-island area to compare with actual measurements. For the radio propagation in the multi-island
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0afabc88c5a02eb9f9cd8b5fffa0a420
https://doi.org/10.23919/usnc-ursirsm52661.2021.9552366
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5
Support Application for Configuring Optimal Relay Nodes in Wireless Sensor Networks
Autor: Toshihiko Hamasaki, Etsushi Oda, Koki Kawauchi
Publikováno v: WiSNet
This paper describes the development of an application system to determine the locations of relay nodes in mesh-type WSNs (wireless sensor networks) operating at frequencies of 2.4 GHz and 920 MHz for agriculture and forestry. This application is des
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::39127853ac4d9e8959bb9825b2b6c3b7
https://doi.org/10.1109/wisnet51848.2021.9413784
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6
Applicability Analysis of the Combination of Career Anchors and Big-Five Personality for Student Career Development
Autor: Toshihiko Hamasaki, Tomoya Mizobuchi
Publikováno v: TALE
This paper describes a statistical analysis of the effectiveness of combining a career-oriented questionnaire with a personality questionnaire. The Career Anchors (CA) and Big-Five Personality (BFP) surveys were performed with university students who
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::771635202e671cf57b1816ad89322134
https://doi.org/10.1109/tale48869.2020.9368474
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7
Analysis of Sub-Giga Band Propagation for Maritime Low Power Wide Area Application
Autor: Koki Kawauchi, Etsushi Oda, Toshihiko Hamasaki
Publikováno v: 2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).
In this paper, we clarify the characteristics of sub-Giga band radio wave propagation at sea for the application of LPWA (Low Power Wide Area) radio in aquaculture. A particular feature of this scenario is high-sensitivity low power communication sys
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aeb7130b7b6680b373708f20cebaf3b0
https://doi.org/10.1109/rfit49453.2020.9226176
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8
Long Distance Propagation Characteristics on the Sea Using a 20 mW 920 MHz Wireless System
Autor: Etsushi Oda, Toshihiko Hamasaki, Koki Kawauchi
Publikováno v: 2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium).
In this paper, the low-latitude maritime mobile radio propagation measurement and model are demonstrated over a distance of 42 km. The specific feature of this scenario is using a novel high-sensitivity communication system (Received Signal Strength
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2102763decf6baaf810c0c9d29423e18
https://doi.org/10.23919/usnc/ursi49741.2020.9321683
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