Time-Optimal Self-Stabilizing Leader Election on Rings in Population Protocols

09/23/2020

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by   Daisuke Yokota, et al.

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We propose a self-stabilizing leader election protocol on directed rings in the model of population protocols. Given an upper bound N on the population size n, the proposed protocol elects a unique leader within O(nN) expected steps starting from any configuration and uses O(N) states. This convergence time is optimal if a given upper bound N is asymptotically tight, i.e., N=O(n).