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This paper proposed an Actor-oriented modeling and designing methodology for complex real time embedded system. Embedded system can be divided into multiple single computing model subsystems according to different computation model and different abstract hierarchy by this method. Then, specialist can construct this subsystem according to their previous experiences and knowledge, and the designers...
Estimations about energy consumption in embedded applications allow to engineers improve codification, scale power systems as well as improve redundant power system in case of fail. In this context, was developed a framework, which is capable to characterize execution time, requested power, used energy, executed instructions and its frequency. Additionally, the developed framework is capable to evaluate...
This paper focuses on a methodology for the dynamic allocation of embedded resources apt to satisfy requests of service with constraints of Quality of Service (QoS). Given a set of services provided by an embedded system, this methodology suggests how to determine the best match between a requested service and the set of Embedded subSystems (EsSs) able to provide that service. The selection of EsSs...
For embedded systems, Finite Word Length (FWL) effect is still a critical issue in digital filter implementation with fixed-point arithmetic. Few partial solutions exist, but none tackles it in its global nature and consider the complete tradeoff between performance, precision, complexity and hardware cost. This paper proposes to formalize this complex problem and exhibits a unifying approach for...
In recent years, there was a tendency towards heterogeneous systems. The main property of these systems is that communication resources and computation resources are non-uniform in architecture and performance. Often,communication links between physically close infrastructure nodes provide high performance, e.g. in the sense of low latency or high bandwidth. A placement methodology for such systems...
To meet time-to-market demands, it is crucial that improvement be made to the system design efficiency. By utilizing a reusable design methodology, it is possible to meet project management requirements. Component integrations may often fail due to concurrency concerns. These concurrency problems mainly occur when components access share resources simultaneously and communicate with each other. If...
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