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The IEEE 802.11p standard has been created for vehicle to vehicle and vehicle to infrastructure communications. Vehicular networks require vehicles to periodically broadcast beacons in order to detect nearby vehicles or road infrastructure nodes and exchange critical information. The IEEE 802.11p standard defines different data rates that can be used for such transmissions, but 6 Mbps has been generally...
Dedicated Short-Range Communications (DSRC) technology in the 5.8GHz band is a key enabler to support a safer and more efficient vehicular transportation in the future. The chosen 5.8GHz frequency band is therefore of great interest for us to study the propagation of signals under various environments. In this paper we investigate and record the propagation effects of 5.8GHz radio signals in an urban...
In vehicular communications, roadside units are the key components to collect/disseminate information from/to vehicles. In this paper we investigate the roadside unit deployment problem in vehicle-to-infrastructure communications. This problem is formulated as a constrained optimization problem with the objective to minimize the deployment cost subject to the constraints that all service areas should...
Vehicular networks (VANET) attract a lot of attention in the research world. Novel vehicular applications need suitable communication mechanisms to extend in-vehicle capabilities and, be aware about surrounding events. However, these networks present some characteristics, such as high mobility or specific topologies. These properties affect the performances of applications and more effort should be...
The availability of efficient location system receivers, numerous calculation techniques of the relative coordinates and the need to design an efficient and a scalable network are the main reasons for geographical information usage in vehicular networks (VANET). IPv6 is considered as the most appropriate technologies to support communication in VANET thanks to its extended address space, enhanced...
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