Presentation 2020-02-27
Note on Dependable LoRa Transmission by Frequency and Gateway Multiplexing
Kohei Kudo, Kazuki Sasaki, Masayuki Arai,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) Recently, LPWA (Low Power Wide Area) is attracting the attention as IoT-oriented communication technology, which enables low power dissipation by suppressing transmission speed, as well as wider area coverage than those for Bluetooth and Wi-Fi. These technologies, however, still have challenges in terms of communication reliability. In this study we discuss reliability improvement schemes based on multiplexing, focusing on LoRaWAN, which is a kind of LPWA technologies. First, we focused on LoRa, which is a wireless transmission strategy used in LoRaWAN, and investigated multiplexed transmission scheme by multiple carrier frequencies. Aiming at implementation of measurement-based adaptive carrier frequency selection, we constructed basic experimental system. Furthermore, we investigated end-to-end redundant transmission of sensing data, based on multiplexed channels and gateways. We set up an experimental system where one device transmits data to a cloud server via two gateways with different channels, and checked the correct operations.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) LPWA / LoRa / LoRaWAN / IoT / gateway multiplexing / frequency division multiplexing
Paper # CPSY2019-98,DC2019-104
Date of Issue 2020-02-20 (CPSY, DC)

Conference Information
Committee CPSY / DC / IPSJ-SLDM / IPSJ-EMB / IPSJ-ARC
Conference Date 2020/2/27(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Yoron-cho Chuou-Kouminkan
Topics (in Japanese) (See Japanese page)
Topics (in English) ETNET 2020
Chair Hidetsugu Irie(Univ. of Tokyo) / Satoshi Fukumoto(Tokyo Metropolitan Univ.) / Yutaka Tamiya(Fujitsu Lab.) / / Hiroshi Inoue(Kyushu Univ.)
Vice Chair Michihiro Koibuchi(NII) / Kota Nakajima(Fujitsu Lab.) / Hiroshi Takahashi(Ehime Univ.)
Secretary Michihiro Koibuchi(Nagoya Inst. of Tech.) / Kota Nakajima(Univ. of Tokyo) / Hiroshi Takahashi(Nihon Univ.) / (Chiba Univ.) / (Univ. Shiga Prefecture) / (NTT)
Assistant Eiji Arima(Univ. of Tokyo) / Shugo Ogawa(Hitachi)

Paper Information
Registration To Technical Committee on Computer Systems / Technical Committee on Dependable Computing / Special Interest Group on System and LSI Design Methodology / Special Interest Group on Embedded Systems / Special Interest Group on System Architecture
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Note on Dependable LoRa Transmission by Frequency and Gateway Multiplexing
Sub Title (in English)
Keyword(1) LPWA
Keyword(2) LoRa
Keyword(3) LoRaWAN
Keyword(4) IoT
Keyword(5) gateway multiplexing
Keyword(6) frequency division multiplexing
1st Author's Name Kohei Kudo
1st Author's Affiliation Nihon University(Nihon Univ.)
2nd Author's Name Kazuki Sasaki
2nd Author's Affiliation Nihon University(Nihon Univ.)
3rd Author's Name Masayuki Arai
3rd Author's Affiliation Nihon University(Nihon Univ.)
Date 2020-02-27
Paper # CPSY2019-98,DC2019-104
Volume (vol) vol.119
Number (no) CPSY-428,DC-429
Page pp.pp.63-68(CPSY), pp.63-68(DC),
#Pages 6
Date of Issue 2020-02-20 (CPSY, DC)