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This protocol was not conceived to support real-time message delivery; therefore, it is not always feasible using it to support IoT solutions involving large wireless sensors networks and time constraint messaging, e.g., in early warning systems for natural hazards, remote monitoring of industrial machinery or autonomous control of transportation systems. This paper presents a model that provides certainty, at the design time of IoT systems, about the real-time communication capability of their supporting network. It allows solution designers: (1) to decide if developing or not a real-time IoT solution based on the feasibility of its communication infrastructure, and (2) to improve the communication infrastructure to try making real-time communication feasible using LoRaWAN.<\/jats:p>","DOI":"10.3390\/s23094281","type":"journal-article","created":{"date-parts":[[2023,4,26]],"date-time":"2023-04-26T01:44:42Z","timestamp":1682473482000},"page":"4281","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Determining Real-Time Communication Feasibility in IoT Systems Supported by LoRaWAN"],"prefix":"10.3390","volume":"23","author":[{"given":"Matias","family":"Micheletto","sequence":"first","affiliation":[{"name":"CIT Golfo San Jorge Research and Transfer Center (CIT-GSJ), CONICET, Comodoro Rivadavia 9000, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1341-4152","authenticated-orcid":false,"given":"Paula","family":"Zabala","sequence":"additional","affiliation":[{"name":"Department of Computer, FCEN-UBA, ICC-CONICET-UBA, Buenos Aires 1428, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0431-8767","authenticated-orcid":false,"given":"Sergio F.","family":"Ochoa","sequence":"additional","affiliation":[{"name":"Department of Computer Science, Universidad de Chile, Santiago 8370456, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9414-646X","authenticated-orcid":false,"given":"Roc","family":"Meseguer","sequence":"additional","affiliation":[{"name":"Department of Computer Architecture, Universitat Polit\u00e8cnica de Catalunya, 08034 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0382-477X","authenticated-orcid":false,"given":"Rodrigo","family":"Santos","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering and Computers, UNS, ICIC-CONICET-UNS, Bahia Blanca 8000, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"855","DOI":"10.1109\/COMST.2017.2652320","article-title":"Low Power Wide Area Networks: An Overview","volume":"19","author":"Raza","year":"2017","journal-title":"IEEE Commun. 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