PreDA: Predicate Routing for DTN Architectures over MANET

—We consider a Delay Tolerant Network (DTN) whose users (nodes) are connected by an underlying Mobile Ad hoc Network (MANET) substrate. Users can declaratively express high-level policy constraints on how “content” should be routed. For example, content can be directed through an intermediary DTN node for the purposes of preprocessing, authentication, etc., or content from a malicious MANET node can be dropped. To support such content routing at the DTN level, we implement Predicate Routing [1] where high-level constraints of DTN nodes are mapped into low-level routing predicates within the MANET nodes. Our testbed [2] uses a Linux system architecture with User Mode Linux [3] to emulate every DTN node with a DTN Reference Implementation code [4]. In our initial architecture prototype, we use the On Demand Distance Vector (AODV) routing protocol at the MANET level. We use the network simulator ns-2 (nsemulation version) to simulate the wireless connectivity of both DTN and MANET n...

• Type: Conference
• Year: 2009
• Where: GLOBECOM
• Authors: Flavio Esposito, Ibrahim Matta
• Keywords: Dtn Node, GLOBECOM 2009, Intermediary Dtn Node, Manet Nodes, Telecommunications