Fault-Induced Dynamics of Oblivious Robots on a Line View Full Text


Ontology type: schema:Chapter      Open Access: True


Chapter Info

DATE

2017-10-07

AUTHORS

Jean-Lou De Carufel , Paola Flocchini

ABSTRACT

The study of computing in presence of faulty robots in the Look-Compute-Move model has been the object of extensive investigation, typically with the goal of designing algorithms tolerant to as many faults as possible. In this paper, we initiate a new line of investigation on the presence of faults, focusing on a rather different issue. We are interested in understanding the dynamics of a group of robots when they execute an algorithm designed for a fault-free environment, in presence of some undetectable crashed robots. We start this investigation focusing on the classic point-convergence algorithm by Ando et al. [2] for robots with limited visibility, in a simple setting (which already presents serious challenges): the robots operate fully synchronously on a line, and at most two of them are faulty. Interestingly, and perhaps surprisingly, the presence of faults induces the robots to perform some form of scattering, rather than point-convergence. In fact, we discover that they arrange themselves inside the segment delimited by the two faults in interleaved sequences of equidistant robots. More... »

PAGES

126-141

References to SciGraph publications

  • 2015. Wait-Free Gathering Without Chirality in STRUCTURAL INFORMATION AND COMMUNICATION COMPLEXITY
  • 2010. Connectivity-Preserving Scattering of Mobile Robots with Limited Visibility in STABILIZATION, SAFETY, AND SECURITY OF DISTRIBUTED SYSTEMS
  • 2006. Fault-Tolerant and Self-stabilizing Mobile Robots Gathering in DISTRIBUTED COMPUTING
  • 2017-12. Distributed computing by mobile robots: uniform circle formation in DISTRIBUTED COMPUTING
  • 2013. Certified Impossibility Results for Byzantine-Tolerant Mobile Robots in STABILIZATION, SAFETY, AND SECURITY OF DISTRIBUTED SYSTEMS
  • Book

    TITLE

    Stabilization, Safety, and Security of Distributed Systems

    ISBN

    978-3-319-69083-4
    978-3-319-69084-1

    Author Affiliations

    Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/978-3-319-69084-1_9

    DOI

    http://dx.doi.org/10.1007/978-3-319-69084-1_9

    DIMENSIONS

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