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This article presents a detailed description of fog computing (also known as edge computing) and explores its research challenges and problems. Based on the authors' understanding of these challenges and problems, they propose a flexible software architecture, which can incorporate different design choices and user-specified polices. They present their design of WM-FOG, a computing framework for fog...
Test and validation of autonomous mechatronic systems is a major challenge. Due to more complex tasks as well as dynamic environments, existing test and validation methods are reaching their limits. The complexity and diversity of their elements and interrelations of these as well as interrelations with environmental elements have to be handled because established methods do not consider the characteristics...
IT infrastructures in global corporations are appropriately compared with nervous systems, in which body parts (interconnected datacenters) exchange signals (request responses) in order to coordinate actions (data visualization and manipulation). A priori inoffensive perturbations in the operation of the system or the elements composing the infrastructure can lead to catastrophic consequences. Downtime...
The increase of computational power in embedded systems has allowed integrating together hard real-time tasks and rich applications. Complex SW infrastructures containing both RTOS and GPOS are required to handle this complexity. To optimally map system functionality to the hard-RT SW domain, to the general purpose SW domain or to HW peripherals, early performance evaluations at the first steps of...
A silicon prototyping methodology is presented for Multi-Project System-on-a-Chip (MP-SoC) implementation. A multi-projects platform was created for integrating heterogeneous SoC projects into a single chip. The total silicon prototyping cost of these projects can be greatly reduced by sharing a common platform. To demonstrate the effectiveness of the proposed methodology, a MP-SoC chip was implemented...
A modeling language with formal semantics is able to capture a system's functionality unambiguously, without concerning implementation details. Such a formal language is well-suited for a design process that employs formal techniques and supports hardware/software synthesis. On the other hand, SystemC is a widely used system level design language with hardware-oriented modeling features. It provides...
Frequency interleaving is introduced as a means of conceptualizing and co-scheduling hardware and software behaviors so that software models with conceptually unbounded state and execution time are resolved with hardware resources. The novel mechanisms that result in frequency interleaving are a shared memory foundation for all system modeling (from gates to software intensive subsystems) and dc-coupled,...
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