A trust-based framework for data forwarding in opportunistic networks

Authors:
Na Li;Sajal K. Das
Affiliations:
CReWMaN Lab, Computer Science and Engineering Department, The University of Texas at Arlington, United States;CReWMaN Lab, Computer Science and Engineering Department, The University of Texas at Arlington, United States
Venue:
Ad Hoc Networks
Year:
2013

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Abstract

In general, the encounter probability is leveraged to evaluate whether a node is a qualified next-hop forwarder in Opportunistic Networks (OppNets); however, it does not truly present the node's competency of delivering data in a hostile wireless environment, because a malicious node can arbitrarily bloat that probability to intercept data from others. In this paper, we design a trust-based framework to more accurately evaluate an encounter's delivery competency, which can be flexibly integrated with a large family of existing data forwarding protocols designed for OppNets. As a case study, we integrate our proposed framework with PROPHET, and demonstrate its effectiveness against ''black hole'' attacks through experimental study.