Self-stabilizing symmetry breaking in constant-space (extended abstract)

  • Authors:
  • Alain Mayer;Yoram Ofek;Rafail Ostrovsky;Moti Yung

  • Affiliations:
  • Computer Science Department, Brown University, Providence, RI;IBM T.J. Watson Research Center, Yorktown Heights, NY;MIT Laboratory for Computer Science, 545 Technology Square, Cambridge, MA;IBM T.J. Watson Research Center, Yorktown Heights, NY

  • Venue:
  • STOC '92 Proceedings of the twenty-fourth annual ACM symposium on Theory of computing
  • Year:
  • 1992

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Abstract

We investigate the problem of self-stabilizing round-robin token management scheme on an anonymous bidirectional ring of identical processors, where each processor is an asynchronous probabilistic (coin-flipping) finite state machine which sends and receives messages. We show that the solution to this problem is equivalent to symmetry breaking (i.e., leader election). Requiring only constant-size messages and message-passing model has practical implications: our solution can be implemented in high-speed networks using a universal fast hardware switches (i.e., finite state machines) of size independent of the size of the network.