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Free keywords:
Computer Science, Data Structures and Algorithms, cs.DS,Computer Science, Distributed, Parallel, and Cluster Computing, cs.DC
Abstract:
We present rumor spreading protocols for the complete graph topology that are
robust against an arbitrary number of adversarial initial node failures. Our
protocols are the first rumor spreading protocols combining the following three
properties: they can tolerate any number of failures, they distribute the rumor
to all nodes using linear number of messages (actually they use strictly
minimal $n-1$ messages), and if an arbitrarily small constant fraction $p$ of
nodes (including the initiator of the rumor) are working correctly, our
protocols communicate the rumor to all members in the network in $O(\log(n))$
rounds.
Our protocols are simpler than previous fault-tolerant rumor spreading
protocols in this model, they do not require synchronization (i.e., their
correctness is independent on the relative speeds of the nodes), and they do
not require a simultaneous wakeup of all nodes at time 0.
