1. Network Simulator (ns-2).
http://isi.edu/nsnam/ns/
2. Simulation of Urban MObility (SUMO).
http://sumo.sourceforge.net/
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4. Bravo-Torres, J., López-Nores, M., Blanco-Fernández, Y.: VNlayer+: evolution of the virtual node layer to support ad-hoc communications in indoor, pedestrian and vehicular contexts. Department of Telematics Engineering, University of Vigo, Technical report (2013)
5. Brown, M., Gilbert, S., Lynch, N., Newport, C., Nolte, T., Spindel, M.: The virtual node layer: a programming abstraction for wireless sensor networks. ACM SIGBED Rev. 4(3), 121–140 (2007)