Issue No. 04 - April (2012 vol. 11)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TMC.2011.100
Oscar Trullols-Cruces , Universitat Politècnica de Catalunya, Barcelona
Marco Fiore , INSA Lyon - INRIA, Lyon
Jose M. Barcelo-Ordinas , Universitat Politècnica de Catalunya, Barcelona
We consider a complex (i.e., nonlinear) road scenario where users aboard vehicles equipped with communication interfaces are interested in downloading large files from road-side Access Points (APs). We investigate the possibility of exploiting opportunistic encounters among mobile nodes so to augment the transfer rate experienced by vehicular downloaders. To that end, we devise solutions for the selection of carriers and data chunks at the APs, and evaluate them in real-world road topologies, under different AP deployment strategies. Through extensive simulations, we show that carry&forward transfers can significantly increase the download rate of vehicular users in urban/suburban environments, and that such a result holds throughout diverse mobility scenarios, AP placements and network loads.
Vehicular networks, cooperative downloading, delay tolerant networking, carry & forward transmission.
J. M. Barcelo-Ordinas, M. Fiore and O. Trullols-Cruces, "Cooperative Download in Vehicular Environments," in IEEE Transactions on Mobile Computing, vol. 11, no. , pp. 663-678, 2011.