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Delay Tolerant Networking (DTN) is an approach to networking which handlesnetwork disruptions and high delays that may occur in many kinds ofcommunication networks. The major reasons for high delay include partialconnectivity of networks as can be seen in many types of ad hoc wirelessnetworks with frequent network partitions, long propagation time as experiencedin inter-planetary and deep space networks, and frequent link disruptions dueto the mobility of nodes as observed in terrestrial wireless networkenvironments. Experimenting network architectures, protocols, and mobilitymodels in such real-world scenarios is difficult due to the complexitiesinvolved in the network environment. Therefore, in this document, we presentthe documentation of an Urban Delay Tolerant Network Simulator (UDTNSim)version 0.1, capable of simulating urban road network environments with DTNcharacteristics including mobility models and routing protocols. The mobilitymodels included in this version of UDTNSim are (i) Stationary Movement, (ii)Simple Random Movement, (iii) Path Type Based Movememt, (iv) Path Memory BasedMovement, (v) Path Type with Restricted Movement, and (vi) Path Type with WaitMovement. In addition to mobility models, we also provide three routing anddata hand-off protocols: (i) Epidemic Routing, (ii) Superior Only Handoff, and(iii) Superior Peer Handoff. UDTNSim v0.1 is designed using object-orientedprogramming approach in order to provide flexibility in addition of newfeatures to the DTN environment. UDTNSim v0.1 is distributed as an open sourcesimulator for the use of the research community.

Urban Delay Tolerant Network Simulator (UDTNSim v0.1)