Detection and Location of Multiple Faults in Baseline Interconnection Networks

  • Authors:
  • F. Lombardi;C. Feng;W.-K. Huang

  • Affiliations:
  • -;-;-

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1992

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Abstract

An algorithm for fault diagnosis (detection and location) of baseline interconnection networks in the presence of multiple faults is presented. This algorithm requires 2(1+log/sub 2/ N) tests, where log/sub 2/ N is the number of stages. Multiple fault diagnosis is possible provided: (a) there exists no logically erroneous and unidentified outputs in each faulty switching element and (b) multiple link faults (of the type stuck-at-0 stuck-at-1) do not exist in the network. Fault location is accomplished using an iterative process which checks each stage of the multistage interconnection network. A new functional description of the network is introduced to facilitate fault location.