A reputation-based approach to tolerate misbehaving carriers in Delay Tolerant Networks

Authors:
Gianluca Dini;Angelica Lo Duca
Affiliations:
Dept. of Ingegneria della Informazione, University of Pisa, L.go Lazzarino 1, I-56126, Italy;Dept. of Ingegneria della Informazione, University of Pisa, L.go Lazzarino 1, I-56126, Italy
Venue:
ISCC '10 Proceedings of the The IEEE symposium on Computers and Communications
Year:
2010

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Abstract

Delay Tolerant Network (DTN) is a network paradigm used to deliver messages when network connectivity is not guaranteed. In a DTN, communication is made possible by carriers, mobile nodes that physically carry messages from a network partition to another. Selecting carriers that provide the best delivery probability is a crucial issue. However, if carriers misbehave, the integrity and availability of a DTN is endangered. In this paper we present a decentralised reputation-based system aimed at tolerating misbehaving carriers. A prototype of the system has been integrated into Context Aware Routing (CAR) [1]. Simulations show that the resulting system RCAR provides a greater delivery probability than CAR and Epidemic Routing [2] without increasing the average delivery delay.