![]() ; Codeca, Lara ![]() in VANET '12 Vehicular inter-networking, systems, and applications (2012) MoViT is a distributed software suite for the emulation of mobile wireless networks. MoViT provides researchers and developers with a virtualized environment for developing and testing mobile applications ... [more ▼] MoViT is a distributed software suite for the emulation of mobile wireless networks. MoViT provides researchers and developers with a virtualized environment for developing and testing mobile applications and protocols for any hardware and software platform that can be virtualized. The distributed nature of MoViT allows for the emulation of mobile networks of arbitrary size. Additionally, the network connectivity is shaped transparently such that the connectivity observed by each virtual node resembles that of a physical mobile network. In this paper we present the MoViT architecture, the models used to emulate the wireless channel, the details of our initial implementation and, finally, the results of our evaluation regarding the scalability, realism, and versatility of MoViT. [less ▲] Detailed reference viewed: 124 (12 UL)![]() ; Frank, Raphaël ![]() in Proceedings of the IEEE (2011), 99(7), 1280-1294 Advances in portable technologies and emergence of new applications stimulate interest in urban vehicular communications for commercial, military, and homeland defense applications. Simulation is an ... [more ▼] Advances in portable technologies and emergence of new applications stimulate interest in urban vehicular communications for commercial, military, and homeland defense applications. Simulation is an essential tool to study the behavior and evaluate the performance of protocols and applications in large-scale urban vehicular ad hoc networks (VANET). In this paper, we propose CORNER, a low computational cost yet accurate urban propagation model for mobile networks. CORNER estimates the presence of buildings and obstacles along the signal path using information extrapolated from urban digital maps. A reverse geocoding algorithm is used to classify the propagation situation of any two nodes that need to communicate starting from their geographical coordinates. We classify the relative position of the sender and the receiver as in line of sight (LOS) or nonline of sight (NLOS). Based on this classification, we apply different formulas to compute the path loss (PL) metric. CORNER has been validated through extensive on-the-road experiments, the results show high accuracy in predicting the network connectivity. In addition, on-the-road experiments suggest the need to refine the fading model to differentiate between LOS, and NLOS situations. Finally, we show the impact of CORNER on simulation results for widely used applications. [less ▲] Detailed reference viewed: 169 (0 UL)![]() Frank, Raphaël ![]() in Proceedings of the 7th Asian Internet Engineering Conference (AINTEC 2011) (2011) In this paper we present a novel evaluation methodology for the comparison of ad hoc routing protocols in urban scenarios applied to inter-vehicular communications. We introduce a new route evaluation ... [more ▼] In this paper we present a novel evaluation methodology for the comparison of ad hoc routing protocols in urban scenarios applied to inter-vehicular communications. We introduce a new route evaluation metric that identifies the goodness of a given route. Through analysis of subsequent mobility snapshots of the network topology, we compute an optimal route between two communicating vehicles. We compare the properties of the obtained route to the most representative routing approaches namely reactive and proactive routing. Based on this evaluation we provide a detailed discussion on the pros and cons of the different schemes when applied to urban scenarios. [less ▲] Detailed reference viewed: 187 (1 UL)![]() ; Frank, Raphaël ![]() in Proceedings of the seventh ACM international workshop on VehiculAr InterNETworking (2010) Detailed reference viewed: 78 (0 UL)![]() Frank, Raphaël ![]() in Proceedings of the IEEE 6th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob) (2010) Detailed reference viewed: 134 (1 UL)![]() ; Frank, Raphaël ![]() in Proceedings of the Seventh International Conference on Wireless On-demand Network Systems and Services (WONS'10) (2010) Detailed reference viewed: 143 (1 UL)![]() ; Frank, Raphaël ![]() in Proceedings of the IEEE 6th International Conference on Mobile Adhoc and Sensor Systems (MASS '09) (2009) Detailed reference viewed: 131 (1 UL) |
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