The impact of CSMA on LoRaWAN gateways' performance in IoT networks

Author: Czachórski T.; Grochla K.; Pecka P.; Strzoda A.; Fourneau J.; Mokdad L.; Nycz M.; Nycz T.
Conference Name: IEEE Consumer Communications & Networking Conference CCNC2026
Year of Publication: 2026
Status: Published
Date Published: 02/2026
DOI: 10.1109/CCNC65079.2026.11366536
Conference Location: Las Vegas USA
Publisher: IEEE
URL: https://ieeexplore.ieee.org/document/11366536
PDF File: Markov_Model_LoRa (40).pdf (298.54 KB)
Keywords: LoRa
Abstract: The CSMA mode of operation was recently added to the LoRaWAN standard. We investigate, using a queueing model, how the introduction of CSMA in the communication between devices and the gate in LoRaWan may increase the probability of successful transmission. In the proposed model, customers (transmissions) are served by a multichannel station (gate), and the number of channels corresponds to the number of transmissions that can be performed in parallel. We introduce a queueing model with multiple attempts to find a free channel and investigate their impact on transmission throughput and reliability.