Time-Optimal Self-Stabilizing Leader Election in Population Protocols
Time-Optimal Self-Stabilizing Leader Election in Population Protocols
复制标题
群体协议中的时间最优自稳定领导者选举
DOI:
10.1145/3465084.3467898
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Xu, Chuan
中科院分区:
文献类型:
--
作者:
Burman, Janna;Chen, Ho-Lin;Chen, Hsueh-Ping;Doty, David;Nowak, Thomas;Severson, Eric;Xu, Chuan
We consider the standard population protocol model, where (a priori) indistinguishable and anonymous agents interact in pairs according to uniformly random scheduling. The self-stabilizing leader election problem requires the protocol to converge on a single leader agent from any possible initial configuration. We initiate the study of time complexity of population protocols solving this problem in its original setting: with probability 1, in a complete communication graph. The only previously known protocol by Cai, Izumi, and Wada [Theor. Comput. Syst. 50] runs in expected parallel time Θ(n2) and has the optimal number of n states in a population of n agents. The existing protocol has the additional property that it becomes silent, i.e., the agents' states eventually stop changing.Observing that any silent protocol solving self-stabilizing leader election requires Ω(n) expected parallel time, we introduce a silent protocol that uses optimal O(n) parallel time and states. Without any silence constraints, we show that it is possible to solve self-stabilizing leader election in asymptotically optimal expected parallel time of O(log n), but using at least exponential states (a quasi-polynomial number of bits). All of our protocols (and also that of Cai et al.) work by solving the more difficult ranking problem: assigning agents the ranks 1,ł,n.
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影响因子:
1.3
作者:
Severson, Eric E.;Haley, David;Doty, David
通讯作者:
Doty, David
DOI:
--
发表时间:
2013
期刊:
International Conference on Principles of Distributed Systems
影响因子:
--
作者:
J. Beauquier;Peva Blanchard;Janna Burman
通讯作者:
Janna Burman
影响因子:
1.3
作者:
Angluin, Dana;Aspnes, James;Eisenstat, David
通讯作者:
Eisenstat, David
DOI:
10.1137/1.9781611975031.169
发表时间:
2017
期刊:
J. Comput. Syst. Sci.
影响因子:
--
作者:
L. Gąsieniec;Grzegorz Stachowiak
通讯作者:
Grzegorz Stachowiak
DOI:
--
发表时间:
2016
期刊:
Colloquium on Structural Information & Communication Complexity
影响因子:
--
作者:
M. Rabie
通讯作者:
M. Rabie