Effect of the Transmitter Power on the Data Transmission Distance over the LoRa Wireless Connection
DOI:
https://doi.org/10.52575/2687-0932-2025-52-4-956-966Keywords:
radio communication, experiment, radio control, analysis, control system, LoRa, approximation, errorAbstract
The work experimentally investigates the effect of transmitter power on the communication range in LoRa wireless networks, which is critically important for the energy-efficient design of IoT systems. The experiments were conducted on a hardware stand with the SX1278 module and the STM32F103C8T6 microcontroller. To analyze the resulting dependence, various regression models were tested: linear, quadratic, cubic, power-law, exponential, and hyperbolic. A comparison according to the RMSE and R2 criteria showed that the smallest error is provided by a power approximation that most accurately reflects the physics of radio signal attenuation. Exponential and hyperbolic models proved to be the least adequate. The practical value of the results lies in the possibility of optimizing the power of the transmitter to increase the battery life of the devices and reliable coverage in difficult terrain conditions, such as mountainous or underground facilities.
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Liando J.C. et al. 2019. Known and unknown facts of LoRa: Experiences from a large-scale measurement study. ACM Transactions on Sensor Networks (TOSN), 15(2): 1–35.
Naumov M.A., Karpovsky A.Yu. 2024. Development of a control system for machines and mechanisms using lora wireless communication technology. Collection of scientific papers of the XXIV International Scientific and Technical Conference Automation of Technological Processes. Search for Young People. Donetsk. 281–289.
Performance line, ARM-based 32-bit MCU with Flash, USB, CAN, seven 16-bit timers, two ADCs and nine communication interfaces. URL: http://inverter48.ru/datasheet/mcu/STM32F103C8T6.pdf?ysclid=m2swy5p2eh408905702
Robyns P. et al. 2018. A Multi-Channel Software Decoder for the LoRa Modulation Scheme. IoTBDS. 41–51.
Sornin N., Luis M., Eirich T., Kramp T., Hersent O. 2015. LoRaWAN Specification V1.0. URL: https://lora-alliance.org/wp-content/uploads/2020/11/2015_–_lorawan_specification_1r0_611_1.pdf.
SX1276/77/78/79 – 137 MHz to 1020 MHz Low Power Long Range Transceiver URL: https://components101.com/sites/default/files/component_datasheet/SX1278%20Lora%20Datasheet.pdf
Tapparel J. 2019. Complete reverse engineering of LoRa PHY. Tech. Rep.
Tapparel J. et al. 2020. An open-source LoRa physical layer prototype on GNU radio. 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC). IEEE. 1–5.
Van den Abeele F. et al. 2017. Scalability analysis of large-scale LoRaWAN networks in ns-3. IEEE Internet of Things Journal. 4(6): 2186–2198.
Xu Z. et al. 2023. From Demodulation to Decoding: Toward Complete LoRa PHY Understanding and Implementation. ACM Transactions on Sensor Networks, 18(4): 1–27.
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