doi:10.1109/PIMRC.2018.8580906engOrtin, J.Cesana, M.Redondi, A.How do ALOHA and Listen before Talk Coexist in LoRaWAN?ART-2018-110317In this work we address the analysis of a LoRaWAN network where some devices access the channel according to the standard-compliant ALOHA protocol, while other devices transmit according to a Listen Before Talk paradigm based on the CSMA/CA mechanism. To analyze this scenario, we propose a mathematical model to obtain the Data Extraction Rate both for CSMA/CA and ALOHA devices, as well as the average delay experienced by messages transmitted by CSMA/CA devices. Simulation results show the accuracy of our model, as well as the benefits of introducing CSMA/CA devices into the network, even when not all the devices implement this mechanism and must coexist with ALOHA devices.2018http://zaguan.unizar.es/record/16400210.1109/PIMRC.2018.8580906http://zaguan.unizar.es/record/164002oai:zaguan.unizar.es:164002info:eu-repo/grantAgreement/ES/MEC/CAS17-00624info:eu-repo/grantAgreement/ES/MICINN/TEC2014-52969-Rinfo:eu-repo/grantAgreement/ES/UZ/CUD2017-18info:eu-repo/grantAgreement/ES/UZ/UZ2018-TEC-04IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2018 (2018), [7 pp.]All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/openAccess