Fast track article: Enabling opportunistic storage for mobile DTNs

  • Authors:
  • Mikko Juhani Pitkänen;Jörg Ott

  • Affiliations:
  • Helsinki Institute of Physics, CERN/PH, CH-1217 Genève, Switzerland and Helsinki University of Technology, Espoo, Finland;Helsinki Institute of Physics, CERN/PH, CH-1217 Genève, Switzerland and Helsinki University of Technology, Espoo, Finland

  • Venue:
  • Pervasive and Mobile Computing
  • Year:
  • 2008

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Abstract

Delay-tolerant Networking (DTN) can enable ad-hoc communication within (sparse) mobile user communities and multi-hop Internet access where IP-based end-to-end communication would fail. DTN message forwarding in ad-hoc networks may lead to message replication and messages remaining stored on several nodes for some time. We leverage these characteristics and provide application support in intermediate nodes: we enable them to understand the resources contained in forwarded and locally stored DTN messages to perform application-specific processing. Based upon this, we create an opportunistic distributed storage for cooperative content caching and retrieval using the nodes' buffers.