LoRa 2.4 GHz is a new variant of LoRa networks that uses the 2.4 GHz ISM band, different from the standard 868 MHz LoRa version. The LoRa physical layer takes advantage of a Chirp Spreading Spectrum (CSS) modulation with robust signals for transmission over long distances. While the standard LoRa in the 868 MHz band covers a range of 5-10 km, the actual capacity and range of LoRa 2.4 GHz are still not yet fully investigated. A shorter range is expected with the higher carrier frequency and an increased bandwidth. However, the wider bandwidth allows for the transmission of larger frames and a shorter airtime. In this study, we evaluate the coverage range and capacity of LoRa 2.4 GHz through precise simulations, taking into account a path loss model tailored for urban environments and frequencies over 2 GHz. We also take into account the effect of Rician or Rayleigh fading, as well as collisions in low and high load traffic conditions. The results show a maximum range of 1.1 km and capacity around 310 nodes for low traffic and the case in which each node in the network benefits from a minimum 60% Packet Delivery Ratio (PDR). This range drops to 700 m when the target PDR increases to 90%, accommodating 120 nodes. Under the assumption of Rayleigh fading and for the target PDR of 60 % and heavy load, the range attains 350 m with capacity of 30 nodes, and it drops to 120 m for the 90% target PDR.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.