Information-Centric Content Retrieval for Delay-Tolerant Networks

Anastasiades, Carlos; Schmid, Tobias; Weber, Jürg; Braun, Torsten (2016). Information-Centric Content Retrieval for Delay-Tolerant Networks. Computer Networks, 107, pp. 194-207. Elsevier 10.1016/j.comnet.2016.03.006

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The shift from host-centric to information-centric networking (ICN) promises seamless communication in mobile networks. However, most existing works either consider well-connected networks with high node density or introduce modifications to {ICN} message processing for delay-tolerant Networking (DTN). In this work, we present agent-based content retrieval, which provides information-centric {DTN} support as an application module without modifications to {ICN} message processing. This enables flexible interoperability in changing environments. If no content source can be found via wireless multi-hop routing, requesters may exploit the mobility of neighbor nodes (called agents) by delegating content retrieval to them. Agents that receive a delegation and move closer to content sources can retrieve data and return it back to requesters. We show that agent-based content retrieval may be even more efficient in scenarios where multi-hop communication is possible. Furthermore, we show that broadcast communication may not be necessarily the best option since dynamic unicast requests have little overhead and can better exploit short contact times between nodes (no broadcast delays required for duplicate suppression).

Item Type: Journal Article (Original Article)
Division/Institute: 08 Faculty of Science > Institute of Computer Science (INF) > Communication and Distributed Systems (CDS)
08 Faculty of Science > Institute of Computer Science (INF)
UniBE Contributor: Anastasiades, Carlos; Schmid, Tobias; Weber, Jürg and Braun, Torsten
Subjects: 000 Computer science, knowledge & systems
500 Science > 510 Mathematics
ISSN: 1389-1286
Publisher: Elsevier
Language: English
Submitter: Jonnahtan Eduardo Saltarin de Arco
Date Deposited: 06 May 2016 13:13
Last Modified: 01 Oct 2016 01:30
Publisher DOI: 10.1016/j.comnet.2016.03.006
Uncontrolled Keywords: CCN
BORIS DOI: 10.7892/boris.80574

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