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In the development of application software for networked embedded systems a significant step to improve interoperability and reuse consisted in relying on a service layer providing an abstract interface through a well-defined programming paradigm (e.g., object-oriented, tuplespace or database). During application development this layer can provide a simulation model of the actual platform while during...
The paper focuses on the design of networked embedded systems which cooperate to provide complex distributed applications. A milestone in the effort of simplifying the implementation of such applications has been the introduction of a service layer, named middleware, which abstracts from the peculiarities of the operating system and HW components. However, the presence of the middleware has not been...
This paper addresses the problem of modeling and simulating large set of heterogeneous networked embedded systems which cooperate to build cost-efficient, reliable, secure and scalable applications. The purpose of this task is an application-driven top-down design flow which starts from application requirements and then progressively decides the general architecture of the system and the type and...
Sensor networks are emerging wireless technologies; their integration with the existing 2.5G, 3G mobile networks is a key issue to provide advanced services, e.g., health control. However this integration poses new challenges in the design and simulation of the involved embedded systems since it requires the cooperation of simulation tools that model hardware, software, and network aspects and their...
This paper presents a methodology to combine Transaction Level Modeling and System/Network co-simulation for the design of networked embedded systems. As a result, a new design dimension is added to the traditional TLM refinement process to represent network configuration alternatives. Each network configuration can be used both to drive architecture refinement and exploration and to validate the...
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