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Vehicular ad hoc networks (VANETs) represent a particular mobile technology that permits communication between vehicles, offering security and comfort. Nowadays, distributed mobile wireless computing is becoming a very important communication paradigm, due to its flexibility to adapt to different mobile applications. In this work, an interference aware metric is proposed in order to reduce the level...
Given the future context of fully integrated Intelligent Transport Systems, reliable wireless communications is a necessity. Traditionally, a single wireless technology is selected for communication but by using heterogeneous wireless communication, advantage can be taken of the different transmission characteristics. This paper proposes a novel Multiple Interface Scheduling Algorithm (MISA) which...
Vehicle-to-vehicle (V2V) road safety applications assume a correct, reliable and time-critical exchange of information between nodes to ensure cooperative awareness between vehicles and their neighborhood. While these safety-based applications rely on the single-hop broadcast of status information shared among vehicles on a single channel, in high network load conditions the channel will suffer from...
The acquisition of environmental information from vehicles is expected to overload cellular networks. Short range vehicle-to-vehicle and vehicle-to-roadside wireless communication technologies, such as IEEE 802.11p, are being foreseen for the offloading of cellular networks. A nearer breakthrough in this direction is represented by visible light communication (VLC), which can exploit light emitting...
On-road-communications are increasing in relevance, due to the variety of applications for traffic management systems (TMS) and road safety. This interest is enforcing relevant efforts from research community and standardization bodies to support V2V (vehicle to vehicle) and V2I (vehicle to infrastructure) communications. In this framework, an hybrid approach between IEEE 802.11p standard together...
Self-organized TDMA (STDMA) has been proposed as a medium access control (MAC) protocol for Vehicle-to-Vehicle (V2V) communication. Although it avoids the unbounded channel access delay faced by other CSMA-based protocols, the reliability in high traffic density is still unsatisfactory for critical road safety applications. This paper introduces an enhanced prediction-based STDMA protocol which utilizes...
Driving vehicles in platoons has the potential to improve traffic efficiency, increase safety, reduce fuel consumption, and make driving experience more enjoyable. A lot of effort is being spent in the development of technologies, like radars, enabling automated cruise control following and ensuring emergency braking if the driver does not react in time; but these technologies alone do not empower...
There are increasing interest recently in using 802.11p for ETC (Electronic Toll Collection) communication. However, there are two potential problems for using 802.11p for mission-critical applications like ETC. First, a 802.11p wireless network is prone to fading, shadowing, and interferences, which might result in packet losses. But the WSMP protocol in 802.11p standard does not provide any reliability...
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