A combinatorial characterization of self-stabilizing population protocols.
A combinatorial characterization of self-stabilizing population protocols.
复制标题
自稳定群体协议的组合表征。
DOI:
10.1007/978-3-030-64348-5_13
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发表时间:
2022
影响因子:
1
通讯作者:
Ostrovsky, Rafail
中科院分区:
文献类型:
--
作者:
Mathur, Shaan;Ostrovsky, Rafail
We characterize self-stabilizing functions in population protocols for complete interaction graphs. In particular, we investigate self-stabilization in systems ofNfinite state agents in which a malicious scheduler selects an arbitrary sequence of pairwise interactions under a global fairness condition. We show a necessary and sufficient condition for self-stabilization. Specifically we show that functions without certain set-theoretic conditions are impossible to compute in a self-stabilizing manner. Our main contribution is in the converse, where we construct a self-stabilizing protocol for all other functions that meet this characterization. Our positive construction uses Dickson's Lemma to develop the notion of the root set, a concept that turns out to fundamentally characterize self-stabilization in this model. We believe it may lend to characterizing self-stabilization in more general models as well.