NECTAR: a DTN routing protocol based on neighborhood contact history

There are a number of scenarios where connectivity is intermittent, and a given destination may not be reachable at the moment a message is sent. Networks with these characteristics are known as Delay and Disruption Tolerant Networks (DTN). The NECTAR protocol proposed in this article is based on the contacts history in order to create a Neighborhood Index and then determine the most appropriated route for DTNs. Simulations performed with real data retrieved from mobile and wireless environments at Dartmouth College in scenarios where the occurrence of highlypartitioned networks is frequent, and with the presence of resource constrained nodes show that NECTAR is able to deliver more messages than Epidemic and PROPHET protocols with lower consumption of network resources. Categories and Subject Descriptors C.2.2 [Network Protocols]: Routing protocols General Terms Routing protocols Keywords DTN, Routing Protocol, Neighborhood

• Type: Conference
• Year: 2009
• Where: SAC
• Authors: Etienne C. R. de Oliveira, Célio V. N. de Albuquerque
• Keywords: Applied Computing, Disruption Tolerant Networks, Routing Protocol, SAC 2009, Terms Routing Protocols