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Brief Announcement
DOI: 10.4230/LIPIcs.DISC.2021.59
Brief Announcement: Simple Majority Consensus in Networks with Unreliable Communication

Authors: Ariel Livshits, Yonatan Shadmi, and Ran Tamir (Averbuch)

Published in: LIPIcs, Volume 209, 35th International Symposium on Distributed Computing (DISC 2021)

Abstract
In this work, we consider a synchronous model of n faultless agents, with a complete communication graph and messages that are lost with some constant probability q ∈ (0,1). In this model we show that there exists a protocol, called the Simple Majority Protocol, that solves consensus in 3 communication rounds with probability of agreement converging to 1 as n → ∞. We also prove that 3 communication rounds are necessary for the SMP to achieve consensus, with high probability.
Cite as

Ariel Livshits, Yonatan Shadmi, and Ran Tamir (Averbuch). Brief Announcement: Simple Majority Consensus in Networks with Unreliable Communication. In 35th International Symposium on Distributed Computing (DISC 2021). Leibniz International Proceedings in Informatics (LIPIcs), Volume 209, pp. 59:1-59:4, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{livshits_et_al:LIPIcs.DISC.2021.59,
  author =	{Livshits, Ariel and Shadmi, Yonatan and Tamir (Averbuch), Ran},
  title =	{{Brief Announcement: Simple Majority Consensus in Networks with Unreliable Communication}},
  booktitle =	{35th International Symposium on Distributed Computing (DISC 2021)},
  pages =	{59:1--59:4},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-210-5},
  ISSN =	{1868-8969},
  year =	{2021},
  volume =	{209},
  editor =	{Gilbert, Seth},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.DISC.2021.59},
  URN =		{urn:nbn:de:0030-drops-148617},
  doi =		{10.4230/LIPIcs.DISC.2021.59},
  annote =	{Keywords: Majority consensus, probabilistic message loss, distributed systems}
}
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