HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Collision-Free Transmissions in an IoT Monitoring Application Based on LoRaWAN

Abstract : With the Internet of Things (IoT), the number of monitoring applications deployed is considerably increasing, whatever the field considered: smart city, smart agriculture, environment monitoring, air pollution monitoring, to name a few. The LoRaWAN (Long Range Wide Area Network)architecture with its long range communication, its robustness to interference and its reduced energy consumption is an excellent candidate to support such applications. However, if the number of end devices is high, the reliability of LoRaWAN, measured by the Packet Delivery Ratio (PDR), becomes unacceptable due to an excessive number of collisions. In this paper, we propose two different families of solutions ensuring collision-free transmissions. The first family is TDMA (Time-Division Multiple Access)-based. All clusters transmit in sequence and up to six end devices with different spreading factors belonging to the same cluster are allowed to transmit in parallel. The second family is FDMA (Frequency Divsion Multiple Access)-based. All clusters transmit in parallel, each cluster on its own frequency. Within each cluster, all end devices transmit in sequence. Their performance are compared in terms of PDR, energy consumption by end device and maximum number of end devices supported. Simulation results corroborate the theoretical results and show the high efficiency of the solutions proposed.
Document type :
Journal articles
Complete list of metadata

Cited literature [35 references]  Display  Hide  Download

Contributor : Pascale Minet Connect in order to contact the contributor
Submitted on : Wednesday, July 29, 2020 - 5:05:18 PM
Last modification on : Monday, February 21, 2022 - 3:38:20 PM
Long-term archiving on: : Tuesday, December 1, 2020 - 6:05:46 PM


Publication funded by an institution




Rahim Haiahem, Pascale Minet, Selma Boumerdassi, Leila Azouz Saidane. Collision-Free Transmissions in an IoT Monitoring Application Based on LoRaWAN. Sensors, MDPI, 2020, ⟨10.3390/s20144053⟩. ⟨hal-02908985⟩



Record views


Files downloads