Search results for "Microcode"

showing 4 items of 4 documents

Experimental Assessment of the Backoff Behavior of Commercial IEEE 802.11b Network Cards

2007

It has been observed that different IEEE 802.11 commercial cards produced by different vendors experience different performance, either when accessing alone the channel, as well as when competing against each other. These differences persist also when thorough measurement methodologies (such as RF shielding, laptop rotation, etc) are applied, and alignment of the environmental factors (same laptop models, traffic generators, etc) is carried out. This paper provides an extensive experimental characterization of the backoff operation of six commercial NIC cards. It suggests a relevant methodological approach, namely a repeatable, well defined, set of experiments, for such a characterization. …

IEEE 802business.product_categoryComputer scienceNetwork cardsSoftware performance testingComputer software; Laptop computers; Telecommunication traffic; Low level backoff distribution measurements; Network cards; Traffic generators; Window size; Network architectureLaptop computerscomputer.software_genreSettore ING-INF/01 - ElettronicaSoftwareMicrocodeComputer softwareWindow sizeTraffic generatorsSettore ING-INF/03 - Telecomunicazionibusiness.industryFirmwareNetwork architecturePortable computers Rotation measurement Radio frequency Environmental factorsTelecommunication trafficNetwork interface controllerLaptopEmbedded systemLow level backoff distribution measurementsbusinesscomputerCommunication channelIEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications
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A Formal Model for Developing of the self-Diagosing and Self-Repairing 8-Bits Microprocessor, and Its Investigation Using Simulation

1986

Abstract The complete model of functional diagnostics is theoretically described. It specifies the conditions, which must be satisfied if the system to be self-diagnosable. The general principles of constructing self-diagnosable systems are enumerated. The model enables the realization of self-renewal, too. The model has been developed on the basis of the works by Preparata, Metze, Chien (1967) and Hakimi, Amin (1974) . The model contains a method of diagnostics completely separeted from the physical structure of the system. Recent results (Gruber, 1978; Swiatek, 1982) indicate that it is only necessary to know the set of transformations realized by the circuit. The model has been applied t…

Basis (linear algebra)business.industryComputer sciencelaw.inventionSet (abstract data type)MicroprocessorPhysical structureComputer engineeringlawMicrocodeSelf repairingbusinessRealization (systems)Computer hardwareIFAC Proceedings Volumes
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An embedded datalogger with a fast acquisition rate for in-vehicle testing and monitoring

2011

A very compact and high performance datalogger for automotive in-vehicle testing is here described. The small logger dimensions and the availability of a CAN interface allows to easily implement multiple and distributed acquisition schemes, very challenging with traditional instrumentation. High acquisition rate, up to 100 Ksps/ch, and low cost was obtained through a very accurate hardware and software design.

Computer sciencebusiness.industryAutomotive industryData Acquisition In-Vehicle testingAutomotive electronicsSettore ING-INF/01 - ElettronicaCAN busMicrocodeEmbedded systemData loggerSoftware designInstrumentation (computer programming)businessThroughput (business)Automotive electronics controller area networks data loggers embedded systems
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Hypervisor-Based White Listing of Executables

2019

We describe an efficient system for ensuring code integrity of an operating system (OS), both its own code and application code. The proposed system can protect from an attacker who has full control over the OS kernel. An evaluation of the system's performance suggests the induced overhead is negligible. peerReviewed

operating systemsmicroprogrammingdatabasesvirtualisointiComputer Networks and CommunicationsComputer science0211 other engineering and technologiesListing (computer)02 engineering and technologycomputer.software_genre020204 information systemsMicrocode0202 electrical engineering electronic engineering information engineeringCode (cryptography)Overhead (computing)virtual machine monitorstietoturvaElectrical and Electronic Engineeringimage segmentation021110 strategic defence & security studieskäyttöjärjestelmätLinuxHypervisorcomputer.file_formatmonitoringOperating systemohjelmointiExecutableLawcomputerIEEE Security & Privacy
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