{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T05:11:47Z","timestamp":1775279507810,"version":"3.50.1"},"reference-count":32,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2018,11,17]],"date-time":"2018-11-17T00:00:00Z","timestamp":1542412800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"PO FEDER-FSE Bourgogne 2014\/2020 programs","award":["Convention FEDER : #BG0005961"],"award-info":[{"award-number":["Convention FEDER : #BG0005961"]}]},{"DOI":"10.13039\/501100011773","name":"Conseil r\u00e9gional de Bourgogne-Franche-Comt\u00e9","doi-asserted-by":"publisher","award":["PARI : #2016-9205AAO033S03069"],"award-info":[{"award-number":["PARI : #2016-9205AAO033S03069"]}],"id":[{"id":"10.13039\/501100011773","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Computers"],"abstract":"<jats:p>Providing Internet of Things (IoT) environments with service level guarantee is a challenging task for improving IoT application usage experience. We specify in this paper an IoT architecture enabling an IoT Service Level Agreement (iSLA) achievement between an IoT Service Provider (IoT-SP) and an IoT Client (IoT-C). In order to guarantee the IoT applications\u2019 requirements, Quality of Service (QoS) mechanisms should be implemented within all the layers of the IoT architecture. Thus, we propose a specific mechanism for the lowest layer of our service level based IoT architecture (i.e., sensing layer). It is an adaptation of the IEEE 802.15.4 slotted CSMA\/CA mechanism enabling to take into consideration the requirements of real-time IoT services. Our access method called QBAIoT (QoS based Access for IoT) extends IEEE 802.15.4 systems by creating a new contention access period for each specified traffic class in the iSLA. Furthermore, due to the huge number of IoT connected devices, self-configuring capability provisioning is necessary for limiting human intervention and total cost of ownership (TCO). Thus, we integrate a self-configuring capability to the QBAIoT access method by implementing the MAPE-K closed control loop within the IoT High Level Gateway (HL-Gw) of our proposed QoS based IoT architecture.<\/jats:p>","DOI":"10.3390\/computers7040064","type":"journal-article","created":{"date-parts":[[2018,11,21]],"date-time":"2018-11-21T11:23:27Z","timestamp":1542799407000},"page":"64","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Self-Configuring IoT Service QoS Guarantee Using QBAIoT"],"prefix":"10.3390","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3507-9084","authenticated-orcid":false,"given":"Ahmad","family":"Khalil","sequence":"first","affiliation":[{"name":"University of Bourgogne Franche-Comt\u00e9, LE2I, 21000 Dijon, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9274-6816","authenticated-orcid":false,"given":"Nader","family":"Mbarek","sequence":"additional","affiliation":[{"name":"University of Bourgogne Franche-Comt\u00e9, LE2I, 21000 Dijon, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olivier","family":"Togni","sequence":"additional","affiliation":[{"name":"University of Bourgogne Franche-Comt\u00e9, LE2I, 21000 Dijon, France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,11,17]]},"reference":[{"key":"ref_1","unstructured":"Manyika, J., Chui, M., Bisson, P., Woetzel, J., Dobbs, R., Bughin, J., Aharon, D., and McKinsey & Company, McKinsey Global Institute (2018, October 17). 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