19,840 research outputs found

    On the Reuse of RTL assertions in Systemc TLM Verification

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    Reuse of existing and already verified intellectual property (IP) models is a key strategy to cope with the com- plexity of designing modern system-on-chips (SoC)s under ever stringent time-to-market requirements. In particular, the recent trend towards system-level design and transaction level modeling (TLM) gives rise to new challenges for reusing existing RTL IPs and their verification environment in TLM-based design flows. While techniques and tools to abstract RTL IPs into TLM models have begun to appear, the problem of reusing, at TLM, a verification environment originally developed for an RTL IP is still underexplored, particularly when assertion-based verification (ABV) is adopted. Some techniques and frameworks have been proposed to deal with ABV at TLM, but they assume a top-down design and verification flow, where assertions are defined ex-novo at TLM level. In contrast, the reuse of existing assertions in an RTL-to-TLM bottom-up design flow has not been analyzed yet. This paper proposes a methodology to reuse assertions originally defined for a given RTL IP, to verify the corresponding TLM model. Experimental results have been conducted on benchmarks of different characteristics and complexity to show the applicability and the efficacy of the proposed methodology

    e-Health for Rural Areas in Developing Countries: Lessons from the Sebokeng Experience

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    We report the experience gained in an e-Health project in the Gauteng province, in South Africa. A Proof-of-Concept of the project has been already installed in 3 clinics in the Sebokeng township. The project is now going to be applied to 300 clinics in the whole province. This extension of the Proof-of-Concept can however give rise to security aws because of the inclusion of rural areas with unreliable Internet connection. We address this problem and propose a safe solution

    From FPGA to ASIC: A RISC-V processor experience

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    This work document a correct design flow using these tools in the Lagarto RISC- V Processor and the RTL design considerations that must be taken into account, to move from a design for FPGA to design for ASIC

    A standard-driven communication protocol for disconnected clinics in rural areas

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    The importance of the Electronic Health Record (EHR), which stores all healthcare-related data belonging to a patient, has been recognized in recent years by governments, institutions, and industry. Initiatives like Integrating the Healthcare Enterprise (IHE) have been developed for the definition of standard methodologies for secure and interoperable EHR exchanges among clinics and hospitals. Using the requisites specified by these initiatives, many large-scale projects have been set up to enable healthcare professionals to handle patients' EHRs. Applications deployed in these settings are often considered safety-critical, thus ensuring such security properties as confidentiality, authentication, and authorization is crucial for their success. In this paper, we propose a communication protocol, based on the IHE specifications, for authenticating healthcare professionals and assuring patients' safety in settings where no network connection is available, such as in rural areas of some developing countries. We define a specific threat model, driven by the experience of use cases covered by international projects, and prove that an intruder cannot cause damages to the safety of patients and their data by performing any of the attacks falling within this threat model. To demonstrate the feasibility and effectiveness of our protocol, we have fully implemented it

    Portfolio Choice with Stochastic Investment Opportunities: a User's Guide

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    This survey reviews portfolio choice in settings where investment opportunities are stochastic due to, e.g., stochastic volatility or return predictability. It is explained how to heuristically compute candidate optimal portfolios using tools from stochastic control, and how to rigorously verify their optimality by means of convex duality. Special emphasis is placed on long-horizon asymptotics, that lead to particularly tractable results.Comment: 31 pages, 4 figure
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