Randomized Gossiping by Packets in Faulty Networks

  • Authors:
  • Anna Gambin;Adam Malinowski

  • Affiliations:
  • -;-

  • Venue:
  • SOFSEM '99 Proceedings of the 26th Conference on Current Trends in Theory and Practice of Informatics on Theory and Practice of Informatics
  • Year:
  • 1999

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Abstract

Every node of a network has a value which should be made known to all the other nodes. Some arbitrarily placed nodes and links may be faulty, however for each pair of fault-free nodes the number of fault-free paths of length 2 that connect them is linear in the size of the network. Faults are of crash type: faulty links do not transmit and faulty nodes neither send nor receive messages. In a unit of time a node can send or receive at most one packet containing the values of at most b nodes. For every 1 驴 b 驴 n we present an asymptotically time-optimal randomized algorithm to exchange values between all the fault-free nodes with the probability exceeding 1 - n-驴, where n is the number of nodes and 驴 0 is an arbitrary constant.