Organization of backup communication channels for emergencies in environments with limited infrastructure using LPWAN technology

Yurii Lykov; Anatoliy Oleynikov; Hanna Lykova; Stepan Savenko; Sergey Makovetskyi

doi:10.3103/S0735272723090054

Authors

Yurii Lykov Kharkiv national university of radio electronics, Kharkiv, Ukraine https://orcid.org/0000-0001-7120-3276
Anatoliy Oleynikov Kharkiv national university of radio electronics, Kharkiv, Ukraine https://orcid.org/0000-0002-4458-8833
Hanna Lykova Kharkiv national university of radio electronics, Kharkiv, Ukraine https://orcid.org/0000-0002-5630-8675
Stepan Savenko Kharkiv national university of radio electronics, Kharkiv, Ukraine https://orcid.org/0009-0008-1945-1617
Sergey Makovetskyi EKTOS-Ukraine LCC, Kharkiv, Ukraine https://orcid.org/0000-0002-9814-9465

DOI:

https://doi.org/10.3103/S0735272723090054

Keywords:

LoRaWAN, communications, autonomy time, Okamura-Hata model, two-ray model, limitations

Abstract

This paper elucidates the importance of creating backup communication channels in emergencies when access to cellular and satellite communication systems can be limited. The purpose of the study is to substantiate the use of LoRaWAN technology as a basis for building reliable backup communication facilities. A block diagram of the device has been proposed, which is used as an example for modeling the autonomy time of the device. It is shown that, depending on the mode of operation, this time ranges from 150 to 900 days. To estimate the radio accessibility zone of the device, the maximum transmission range was modeled using various models of radio wave propagation. The results of the investigations have shown that the developed emergency communication system based on the LoRaWAN protocol is effective and superior to other wireless communication technologies under certain conditions.

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