Title

Fault Demotion Using Reconfigurable Slack (Fadres)

Keywords

Autonomous operation; fault handling; fault tolerance; partial reconfiguration (PR); runtime faults; survivability

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. © 1993-2012 IEEE.

Publication Date

1-1-2013

Publication Title

IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Volume

21

Issue

7

Number of Pages

1364-1368

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/TVLSI.2012.2206836

Socpus ID

84880049709 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84880049709

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