# A Lightweight Slice-Based Quality of Service Manager for IoT
)1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; [EMAIL_ADDRESS] (W.M. )1 Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal; filipe. The 5G 3 GPP standard [11] does not support the non-3 GPP IoT wireless technologies such as LoRa [12] in which we are interested. Among the multitude of existing use cases, with each use case having specific characteristics and requirements, different network capabilities need to be defined according to the context of the applications. Such characteristics come with the need to be the most adaptable as possible and providing support to efficient performance requirements [13]. Within this context, SDN comes as a flexible solution to enhance IoT in order to provide support for applications in the industrial and farming domains, meeting their QoS requirements [14]. SDN's flexible programmability combined with network slicing can quickly provide those applications with isolated network connectivity environments, allowing them to even adapt to their devices' heterogeneity when it is required to do so. Hence, this paper introduces a lightweight slice-based QoS manager to support non-3 GPP IoT communications. The main goal of this work is to develop a solution considering multiple slices for multi-purpose scenarios enabling digital farming and Industry 4.0 use cases and matching their QoS requirements. To validate our manager, we integrated it, as a component, in the SOFTware-defined gateWAY and fog computing for Internet of Things (SOFTWAY4 IoT) solution [15]. Our proof of concept is tested in a real experimental setup considering the real IoT use cases with the WiFi, BLE and LoRa wireless technologies. Our main contributions are as follows:  
* A slice-based QoS management solution to allow easy integration with other SDN-based solutions (e.g., SOFTWAY4 IoT) and that implements the desired QoS for each use case, considering a lightweight concept of network slicing (as a virtual network partition) to allow better provision.