LoRa Parameter Testing
Abstract
LoRa is a low-power wide-area network (LPWAN) technology that is widely used in applications such as smart cities, industrial automation, and agriculture. The performance of LoRa networks is heavily influenced by the configuration of its parameters such as spreading factor (SF), bandwidth (BW), and coding rate (CR). In this paper, we investigate the impact of these parameters on the signal-to-noise ratio (SNR) and received signal strength indicator (RSSI) of LoRa transmissions.Introduction
Methodes
I used two ESP8266 with an LoRa modem attached to each one.Results
The following images are the measuring points of the lowest RSSI/SNR. The top left shows the lowest RSSI received by the receiver. On the right side is the SNR of these lowest measurements. On the bottom right is the plot for the lowest SNR, whith which a packet was received. On its left is the RSSI of these packets.
The next images show the average RSSI and SNR of test runs, that got all 16 packet configurations.
