[Retracted] Large-Area Saline-Alkali-Tolerant Rice Growth Environment Monitoring System Based on LoRa+UAV

Table 2

LoRa terminal node communication performance test results.

Node number	Distance/m	Communication success rate/%	Average signal Strength/dBm	Average signal-to-noise ratio/dB
A	500	100	−26	4.8
B	1000	97	−68	3.4
C	1500	96	−75	3.1
D	2000	89	−90	2.4