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Related Experiment Video

Updated: Dec 12, 2025

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Published on: May 2, 2018

LoRa 2.4 GHz Communication Link and Range.

Thomas Janssen¹, Noori BniLam¹, Michiel Aernouts¹

¹IDLab-Faculty of Applied Engineering, University of Antwerp-imec, Sint-Pietersvliet 7, 2000 Antwerp, Belgium.

Sensors (Basel, Switzerland)

|August 9, 2020

Summary

Semtech

Keywords:

2.4 GHz LPWAN LoRa LoRaWAN low power wide area networks path loss modeling range estimation wireless sensor networks

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Area of Science:

Wireless communication technologies
Radio frequency engineering
Internet of Things (IoT) connectivity

Background:

Semtech introduced a Long Range (LoRa) chipset for the 2.4 GHz band, complementing existing sub-GHz offerings.
This new chipset enables region-independent hardware design and offers ultra-long range communication with interference resilience.

Purpose of the Study:

To mathematically describe the physical layer of 2.4 GHz LoRa.
To investigate the maximum communication range and data rates of 2.4 GHz LoRa in various environments.
To compare 2.4 GHz LoRa performance against other 2.4 GHz technologies.

Main Methods:

Mathematical modeling of the 2.4 GHz LoRa physical layer.
Simulation of signal propagation using free space, indoor, and urban path loss models.
Analysis of different spreading factors and bandwidths to determine range and data rates.

Main Results:

Maximum communication ranges achieved: 333 km (free space), 107 m (indoor), and 867 m (urban).
Maximum achievable data rate is 253.91 kbit/s; data rate at maximum range is 0.595 kbit/s.
2.4 GHz LoRa demonstrates superior communication range compared to other 2.4 GHz technologies due to configurable bandwidth and lower data rates.

Conclusions:

2.4 GHz LoRa offers significant communication range advantages, particularly in diverse environmental conditions.
The technology provides enhanced bandwidth and localization accuracy for private LoRa networks compared to sub-GHz public networks.
Hardware manufacturers can leverage region-independent chipsets for global deployment of LoRa-based applications.