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Abstract: Heterogeneous networks (hetnets) is an interconnection of distinctive networking paradigms to enable wider reachability and greater collaborations. In large Internet-of-Things (IoT) applications, many wireless networks are spatially co-located and intertwined forming hetnets; for instance, health monitoring devices utilising ZigBee or IEEE 802.15.4 co-exist in 2.4 GHz spectrum alongside Wi-Fi devi...
Abstract: Routing Protocol for Low-Power and Lossy Networks (RPL) as the most widely used routing protocol for constrained Internet of Things (IoT) devices optimizes the number of routing states that nodes maintain to minimize resource consumption. Given that the routes are optimized for data collection, this leads to selecting sub-optimal routes, particularly in case of east-west or ”transversal” traffic. ...
Abstract: Accurate and timely mobility support in Internet of Things (IoT) applications is a challenging issue, considering the inherent scarce resources of IoT devices. However, the computational, memory and communication burden may be pushed into more ”muscled” Software Defined Network (SDN) controllers. A centralised controller can exploit its global view of the network and predict the handovers and upda...
Abstract: Several operations, ranging from regular code updates to compiling, building, testing, and distribution to customers, are consolidated in continuous integration and delivery. Pro-fessionals seek additional information to complete the mission at hand during these tasks. Developers who devote a large amount of time and effort to finding such information may become distracted from their work. We will...
Abstract: Abstract A safety case is a hierarchical argument supported by evidence, whose scope is defined by contextual information. The goal is to show that the conclusion of such argument, typically “the system is acceptably safe”, is true. However, because the knowledge about systems is always imperfect, the value true cannot be assigned with absolute certainty. Instead, researchers have proposed to asse...
Abstract: Security Assurance Cases (SAC) are structured arguments and evidence bodies used to reason about security of a certain system. SACs are gaining focus in the automotive domain as the needs for security assurance are growing. In this study, we present an approach for creating SAC. The approach is inspired by the upcoming security standards ISO/SAE-21434 as well as the internal needs of automotive Or...
Abstract: Switched networks following the time-triggered paradigm rely on static schedules that determine the communication pattern over each link. In order to tolerate link failures, methods based on spatial redundancy and based on resynthesis and replacement of schedules have been proposed. These methods, however, do not scale to larger networks, which may be needed e.g. for future large-scale cyberphysic...
Abstract: With the emergence of “Industry 4.0”, the integration of cloud technologies and industrial cyber-physical systems becomes increasingly important to boost productivity. The industrial cyber-physical systems infrastructures and their fusion with the cloud lead to massive amounts of data acquired for controlling particular processes, but also for supporting decision-making. Although cloud-assisted sy...
Abstract: It is known that offsets in general are not sustainable, i.e., if offsets in a system are modified it is not trivial to determine if this affects schedulability or not. In this paper we investigate if there are situations where offsets can be deemed sustainable, i.e., situations where one can safely modify an offset without impairing schedulability. We introduce, for the approximate Response-Time ...
Abstract: Software systems are complicated, and the scientific and engineering methodologies for software development are relatively young. Cyber-physical systems are now in every corner of our lives, and we need robust methods for handling the ever-increasing complexity of their software systems. Model-Driven Development is a promising approach to tackle the complexity of systems through the concept of abs...
Abstract: Purpose: Evaluation of the treatment outcome of using patient-specific implantable scaffolds seeded with autogenous bone marrow mononuclear cell layer containing stem cells and platelet-rich fibrin in the treatment of alveolar cleft defect. Materials and methods: 12 alveolar cleft defects were divided into 2 groups; group A, six alveolar defects were treated using 3D printed patient’s specific imp...
Abstract: The use of multiagent systems (MASs) in real-world applications keeps increasing, and diffuses into new domains, thanks to technological advances, increased acceptance, and demanding productivity requirements. Being able to automate the generation of mission plans for MASs is critical for managing complex missions in realistic settings. In addition, finding the right level of abstraction to repres...
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