Effect of LBT Time on LoRa Network Performance: Signal Detection Theorem Based Analyses

Abstract

This paper provides analysis results that the effect of energy detection based listen before talk (LBT) time (or detection level of the LBT) on the performance of LoRa Networks. We introduce an approximated analysis method based on signal detection theorem, and we provide a collision probability based analysis results. The results show that the LBT time must be optimized for the improvement of LoRa network performances.