## Abstract

We consider the problem of making distributed computations robust to noise, in particular to worst-case (adversarial) corruptions of messages. We give a general distributed interactive coding scheme which simulates any asynchronous distributed protocol while tolerating a maximal corruption level of (1/n)-fraction of all messages. Our noise tolerance is optimal and is obtained with only a moderate overhead in the number of messages. Our result is the first fully distributed interactive coding scheme in which the topology of the communication network is not known in advance. Prior work required either a coordinating node to be connected to all other nodes in the network or assumed a synchronous network in which all nodes already know the complete topology of the network. Overcoming this more realistic setting of an unknown topology leads to intriguing distributed problems, in which nodes try to learn su cient information about the network topology in order to perform efficient coding and routing operations for coping with the noise. What makes these problems hard is that these topology exploration computations themselves must already be robust to noise.

Original language | English |
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Title of host publication | 9th Innovations in Theoretical Computer Science, ITCS 2018 |

Editors | Anna R. Karlin |

Publisher | Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing |

ISBN (Electronic) | 9783959770606 |

DOIs | |

State | Published - 1 Jan 2018 |

Event | 9th Innovations in Theoretical Computer Science, ITCS 2018 - Cambridge, United States Duration: 11 Jan 2018 → 14 Jan 2018 |

### Publication series

Name | Leibniz International Proceedings in Informatics, LIPIcs |
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Volume | 94 |

ISSN (Print) | 1868-8969 |

### Conference

Conference | 9th Innovations in Theoretical Computer Science, ITCS 2018 |
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Country/Territory | United States |

City | Cambridge |

Period | 11/01/18 → 14/01/18 |

### Bibliographical note

Funding Information:Research supported in part by the Israel Science Foundation (grants 1696/14 and 1078/17), the Binational Science Foundation (grant 2015803), and NSF grants CCF-1527110 and CCF-1618280.

Publisher Copyright:

© Keren Censor-Hillel, Ran Gelles, and Bernhard Haeupler.

## Keywords

- Coding Theory
- Coding for Interactive Communication
- Distributed Computation
- Noise-Resilient Computation