LoRa 2.4 GHz Communication Link and Range
Recently, Semtech has released a Long Range (LoRa) chipset which operates at the globally available 2.4GHz frequency band, on top of the existing sub-GHz, km-range offer, enabling hardware manufacturers to design region-independent chipsets. The SX1280 LoRa module promises an ultra-long communicatio...
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| Veröffentlicht in: | Sensors (Basel, Switzerland) Switzerland), 2020-08, Vol.20 (16), p.4366, Article 4366 |
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| creator | Janssen, Thomas BniLam, Noori Aernouts, Michiel Berkvens, Rafael Weyn, Maarten |
| description | Recently, Semtech has released a Long Range (LoRa) chipset which operates at the globally available 2.4GHz frequency band, on top of the existing sub-GHz, km-range offer, enabling hardware manufacturers to design region-independent chipsets. The SX1280 LoRa module promises an ultra-long communication range while withstanding heavy interference in this widely used band. In this paper, we first provide a mathematical description of the physical layer of LoRa in the 2.4GHz band. Secondly, we investigate the maximum communication range of this technology in three different scenarios. Free space, indoor and urban path loss models are used to simulate the propagation of the 2.4GHz LoRa modulated signal at different spreading factors and bandwidths. Additionally, we investigate the corresponding data rates. The results show a maximum range of 333kmin free space, 107min an indoor office-like environment and 867 min an outdoor urban context. While a maximum data rate of 253.91 kbit/s can be achieved, the data rate at the longest possible range in every scenario equals 0.595 kbit/s. Due to the configurable bandwidth and lower data rates, LoRa outperforms other technologies in the 2.4 GHz band in terms of communication range. In addition, both communication and localization applications deployed in private LoRa networks can benefit from the increased bandwidth and localization accuracy of this system when compared to public sub-GHz networks. |
| doi_str_mv | 10.3390/s20164366 |
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The SX1280 LoRa module promises an ultra-long communication range while withstanding heavy interference in this widely used band. In this paper, we first provide a mathematical description of the physical layer of LoRa in the 2.4GHz band. Secondly, we investigate the maximum communication range of this technology in three different scenarios. Free space, indoor and urban path loss models are used to simulate the propagation of the 2.4GHz LoRa modulated signal at different spreading factors and bandwidths. Additionally, we investigate the corresponding data rates. The results show a maximum range of 333kmin free space, 107min an indoor office-like environment and 867 min an outdoor urban context. While a maximum data rate of 253.91 kbit/s can be achieved, the data rate at the longest possible range in every scenario equals 0.595 kbit/s. Due to the configurable bandwidth and lower data rates, LoRa outperforms other technologies in the 2.4 GHz band in terms of communication range. In addition, both communication and localization applications deployed in private LoRa networks can benefit from the increased bandwidth and localization accuracy of this system when compared to public sub-GHz networks.</description><identifier>ISSN: 1424-8220</identifier><identifier>EISSN: 1424-8220</identifier><identifier>DOI: 10.3390/s20164366</identifier><identifier>PMID: 32764364</identifier><language>eng</language><publisher>BASEL: Mdpi</publisher><subject>2.4 GHz ; Bandwidths ; Chemistry ; Chemistry, Analytical ; Chips (electronics) ; Communication ; Computer simulation ; Engineering ; Engineering, Electrical & Electronic ; Frame relay ; Frequencies ; Indoor environments ; Instruments & Instrumentation ; LoRa ; LoRaWAN ; low power wide area networks ; LPWAN ; Physical Sciences ; Receivers & amplifiers ; Science & Technology ; Spectrum allocation ; Spread spectrum ; Technology ; Urban environments ; Wide area networks ; Wireless networks ; wireless sensor networks</subject><ispartof>Sensors (Basel, Switzerland), 2020-08, Vol.20 (16), p.4366, Article 4366</ispartof><rights>2020. 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| subjects | 2.4 GHz Bandwidths Chemistry Chemistry, Analytical Chips (electronics) Communication Computer simulation Engineering Engineering, Electrical & Electronic Frame relay Frequencies Indoor environments Instruments & Instrumentation LoRa LoRaWAN low power wide area networks LPWAN Physical Sciences Receivers & amplifiers Science & Technology Spectrum allocation Spread spectrum Technology Urban environments Wide area networks Wireless networks wireless sensor networks |
| title | LoRa 2.4 GHz Communication Link and Range |
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