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On Two-Party Communication through Dynamic Networks

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Principles of Distributed Systems (OPODIS 2013)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 8304))

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Abstract

We study two-party communication in the context of directed dynamic networks that are controlled by an adaptive adversary. This adversary is able to change all edges as long as the networks stay strongly-connected in each round. In this work, we establish a relation between counting the total number of nodes in the network and the problem of exchanging tokens between two communication partners which communicate through a dynamic network. We show that the communication problem for a constant fraction of n tokens in a dynamic network with n nodes is at most as hard as counting the number of nodes in a dynamic network with at most 4nā€‰+ā€‰3 nodes. For the proof, we construct a family of directed dynamic networks and apply a lower bound from two-party communication complexity.

This work was partially supported by the German Research Foundation (DFG) within the Collaborative Research Centre ā€œOn-The-Fly Computingā€ (SFB 901), by the EU within FET project MULTIPLEX under contract no. 317532, and the International Graduate School ā€œDynamic Intelligent Systemsā€.

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Abshoff, S., Benter, M., Malatyali, M., Meyer auf der Heide, F. (2013). On Two-Party Communication through Dynamic Networks. In: Baldoni, R., Nisse, N., van Steen, M. (eds) Principles of Distributed Systems. OPODIS 2013. Lecture Notes in Computer Science, vol 8304. Springer, Cham. https://doi.org/10.1007/978-3-319-03850-6_2

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  • DOI: https://doi.org/10.1007/978-3-319-03850-6_2

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-03849-0

  • Online ISBN: 978-3-319-03850-6

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