Information propagation speed in mobile and delay tolerant networks

Philippe Jacquet*, Bernard Mans, Georgios Rodolakis

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

34 Citations (Scopus)
15 Downloads (Pure)


The goal of this paper is to increase our under-standing of the fundamental performance limits of mobile and Delay Tolerant Networks (DTNs), where end-to-end multi-hop paths may not exist and communication routes may only be available through time and mobility. We use analytical tools to derive generic theoretical upper bounds for the information propagation speed in large scale mobile and intermittently connected networks. In other words, we upper-bound the optimal performance, in terms of delay, that can be achieved using any routing algorithm. We then show how our analysis can be applied to specific mobility and graph models to obtain specific analytical estimates. In particular, when nodes move at speed v and their density v is small (the network is sparse and surely disconnected), we prove that the information propagation speed is upper bounded by (1+ O(v2))v in the random way-point model, while it is upper bounded by O(v √vvv) for other mobility models (random walk, Brownian motion). We also present simulations that confirm the validity of the bounds in these scenarios.

Original languageEnglish
Title of host publicationThe 28th Conference on Computer Communications, IEEE INFOCOM 2009
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages9
ISBN (Electronic)9781424435135
ISBN (Print)9781424435128
Publication statusPublished - 2009
Event28th Conference on Computer Communications, IEEE INFOCOM 2009 - Rio de Janeiro, Brazil
Duration: 19 Apr 200925 Apr 2009

Publication series

ISSN (Print)0743-166X


Other28th Conference on Computer Communications, IEEE INFOCOM 2009
CityRio de Janeiro

Bibliographical note

Copyright 2009 IEEE. Reprinted from 2009 Proceedings IEEE INFOCOM : 19-25 April 2009, Rio de Janeiro, Brazil. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Macquarie University’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.


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