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Brief Announcement
DOI: 10.4230/LIPIcs.DISC.2017.46
Brief Announcement: Crash-Tolerant Consensus in Directed Graph Revisited

Authors: Ashish Choudhury, Gayathri Garimella, Arpita Patra, Divya Ravi, and Pratik Sarkar

Published in: LIPIcs, Volume 91, 31st International Symposium on Distributed Computing (DISC 2017)

Abstract
We revisit the problem of distributed consensus in directed graphs tolerating crash failures; we improve the round and communication complexity of the existing protocols. Moreover, we prove that our protocol requires the optimal number of communication rounds, required by any protocol belonging to a specific class of crash-tolerant consensus protocols in directed graphs.
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Ashish Choudhury, Gayathri Garimella, Arpita Patra, Divya Ravi, and Pratik Sarkar. Brief Announcement: Crash-Tolerant Consensus in Directed Graph Revisited. In 31st International Symposium on Distributed Computing (DISC 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 91, pp. 46:1-46:4, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{choudhury_et_al:LIPIcs.DISC.2017.46,
  author =	{Choudhury, Ashish and Garimella, Gayathri and Patra, Arpita and Ravi, Divya and Sarkar, Pratik},
  title =	{{Brief Announcement: Crash-Tolerant Consensus in Directed Graph Revisited}},
  booktitle =	{31st International Symposium on Distributed Computing (DISC 2017)},
  pages =	{46:1--46:4},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-053-8},
  ISSN =	{1868-8969},
  year =	{2017},
  volume =	{91},
  editor =	{Richa, Andr\'{e}a},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.DISC.2017.46},
  URN =		{urn:nbn:de:0030-drops-79784},
  doi =		{10.4230/LIPIcs.DISC.2017.46},
  annote =	{Keywords: Directed graph, Consensus, Crash failure, Round complexity}
}
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