Research ArticleOpen accessEvery word in the titleSelf-Managed Federation of MQTT Brokers with Dynamic Topology ControlBruno Bevilaqua, Marco Aurélio SpohnThe Message Queuing Telemetry Transport (MQTT) protocol is most used in Internet of Things (IoT) applications. The protocol implements the Publish/Subscribe (P/S) communication model. Publishers are entities providing data to a server (broker), and subscribers are those showing interest in such data. The standard MQTT scenario relies on a single broker, a potential bottleneck, and a single point of failure. … …Journal of Computer Science, Vol. 19, Issue 11 · 18 Oct 2023 · 5,248 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA New Approach to a Self-Organizing Federation of MQTT BrokersNicolas Kolling Ribas, Marco Aurélio SpohnIn the Publish/Subscribe (PS) communication paradigm clients producing content (i.e., publishers) send it to a broker, which relays the content to consumers (i.e., subscribers). Communication can happen asynchronously, leaving all the hurdles to the server/broker. MQ Telemetry Transport (MQTT) is the most used P/S protocol in designing IoT applications. The usual MQTT scenario comprises a single broker, making it a … …Journal of Computer Science, Vol. 18, Issue 7 · 29 Jul 2022 · 6,156 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAdafruit IO Based Smart Irrigation System using MQTT Protocol for Urban FarmingDevesh Mishra, Prakhar Yadav, Vandana Yadav et al.Freshwater is needed for irrigation and nutrient supply to plants to make up for the lack of rainfall. Agricultural activities consume more than 70% of the available freshwater. This emphasizes the importance of responsible management of water for irrigation using smart Internet of Things (IoT) based agricultural practices combined with irrigation-related technologies The purpose of this research article is to … …Journal of Computer Science, Vol. 18, Issue 5 · 23 May 2022 · 6,894 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Comparative Analysis of Network Management Protocols in IoT ApplicationsLevi Costa Mota, Edward David Moreno, Admilson Lima Ribeiro, Ricardo J.P.B. SalgueiroThe complexity and growth of new smart objects networks are generating a new demand for the maintenance of these devices, with the need to remotely monitor and control these devices without consuming significant resources. Analyzing the memory and electric power consumption of the protocols used in the management of these networks is a way to highlight the best protocol alternatives … …Journal of Computer Science, Vol. 14, Issue 9 · 27 Sep 2018 · 7,821 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Federative Access Control in a Cloud Environment with a Publish/Subscribe ProtocolAbdelali Saidi, Khalid Aissaoui, Abdessamad MektoubiCloudcomputing is a new concept that has interesting advantages; high computingperformances provided as needed, much lower cost than in-house infrastructures,and better reliability and scalability. However, with some drawbacks that areimpeding its adoption, security is so far the most alarming concern forcompanies or organizations. Access control policies, for example, are the mostchallenging issue that has been tackled these last years; to … …Journal of Computer Science, Vol. 18, Issue 10 · 5 Oct 2022 · 6,012 accessesView PDFCite