Trust Management for Encounter-Based Routing in Delay Tolerant Networks

: We propose and analyze a class of trust management protocols for encounter-based routing in delay tolerant networks (DTNs). The underlying idea is to incorporate trust evaluation in the routing protocol, considering not only quality-of-service (QoS) trust properties (connectivity) but also social trust properties (honesty and unselfishness) to evaluate other nodes encountered. Two versions of trust management protocols are considered: an equal-weight QoS and social trust management protocol (called trust-based routing) and a QoS only trust management protocol (called connectivity-based routing). By utilizing a stochastic Petri net model describing a DTN behavior, we analyze the performance characteristics of these two routing protocols in terms of message delivery ratio, latency, and message overhead. We also perform a comparative performance analysis with epidemic routing for a DTN consisting of heterogeneous mobile nodes with vastly different social and networking behaviors. The re...

• Type: Journal
• Year: 2010
• Where: GLOBECOM
• Authors: Ing-Ray Chen, Fenye Bao, Moonjeong Chang, Jin-Hee Cho
• Keywords: Communications, GLOBECOM 2010, Routing, Social Trust, Trust Management Protocols