Home // ALLSENSORS 2021, The Sixth International Conference on Advances in Sensors, Actuators, Metering and Sensing // View article

Study on Effective Coverage of Low-Cost LoRa Devices

Authors:
Laura García
Sandra Sendra
Jose M. Jimenez
Jaime Lloret
Pascal Lorenz

Keywords: LoRa; Coverage; RSSI; Spreading Factor; Gain

Abstract:
The use of LoRa has extended to varied applications, such as precision agriculture, oceanography, or Smart Cities. The advertised long-range coverage is one of the main claims of this wireless technology. However, the effective coverage of the more affordable Long-Range (LoRa) devices may not provide the connectivity that is expected. Therefore, it is necessary to know the effective coverage of the LoRa devices available in the market in order to design a LoRa network. In this paper, a coverage test of LoRa with low-cost electronic devices is performed. The tests measured the Received Signal Strength Indicator (RSSI) and were performed with the 433 MHz and 868 MHz frequency bands, antennas with gains of 3 dBi and 5dBi, and all the Spreading Factor (SF) configurations. The results show that bad signal quality is received at distances of 1 km approximately and thus, the use of low-cost devices for larger distances is not advised.

Pages: 58 to 63

Copyright: Copyright (c) IARIA, 2021

Publication date: July 18, 2021

Published in: conference

ISSN: 2519-836X

ISBN: 978-1-61208-875-4

Location: Nice, France

Dates: from July 18, 2021 to July 22, 2021