Self-Configuring IoT Service QoS Guarantee Using QBAIoT

• Published in: Computers (Basel) 2018-12, Vol.7 (4), p.64
• Main Authors: Khalil, Ahmad, Mbarek, Nader, Togni, Olivier
• Format: Article
• Language: English
• Subjects: Access control; Communication; Computer Science; e-health; Health services; IEEE 802.15.4; Infrastructure; Internet of Things; IoT; Monitoring systems; Networking and Internet Architecture; Patients; Performance evaluation; Provisioning; QBAIoT; Quality of service architectures; self-configuring; Slotted CSMA/CA; Wireless networks
• ISSN: 2073-431X; 2073-431X
• DOI: 10.3390/computers7040064

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’ 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.