Fault Demotion Using Reconfigurable Slack (FaDReS)

    Authors

    N. Imran; J. Lee;R. F. DeMara

    Comments

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    Abbreviated Journal Title

    IEEE Trans. Very Large Scale Integr.

    Keywords

    Autonomous operation; fault handling; fault tolerance; partial; reconfiguration (PR); runtime faults; survivability; ARCHITECTURE; Computer Science, Hardware & Architecture; Engineering, Electrical &; Electronic

    Abstract

    We propose an active dynamic redundancy-based fault-handling approach exploiting the partial dynamic reconfiguration capability of static random-access memory-based field-programmable gate arrays. Fault detection is accomplished in a uniplex hardware arrangement while an autonomous fault isolation scheme is employed, which neither requires test vectors nor suspends the computational throughput. The deterministic flow of the fault-handling scheme achieves an improved recovery in a bounded number of reconfigurations. This approach extends existing signal processing properties to accommodate fault handling, and is validated by implementing an H.263 video encoder discrete cosine transform (DCT) block. The peak signal-to-noise ratio measure of the video sequences indicates fault tolerance in the DCT block with only limited quality degradation, during the isolation and recovery phases spanning a few frames.

    Journal Title

    Ieee Transactions on Very Large Scale Integration (Vlsi) Systems

    Volume

    21

    Issue/Number

    7

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    1364

    Last Page

    1368

    WOS Identifier

    WOS:000320946200021

    ISSN

    1063-8210

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