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Drivers change the lane over the road networks is a common seen practice when they face a slow, stopped or broken vehicle. Sometimes they have to change the lane to take the next exist or the next U-turn towards their targeted destination. Changing the lane requires that the driver should be aware of vehicles behind him on the new lane or vehicles intending to change to the same lane during that period...
The overloaded transportation networks in big modern cities have always been a severe issue, resulting in congestion, environmental pollution, waste of energy, and of people's time and money. In this paper, we will discuss the potential solutions that could be offered by the utilization of a flexible ridesharing system. We will discuss the current standings of existing ridesharing tools and then propose...
Vehicular Ad-hoc Networks (VANETs) technology has been utilized in recent applications to enhance the traffic fluency over the road network. Various types of emergency cases may negatively affect the efficiency of traffic flow in highway road scenarios, including accidents, damaged vehicles or the presence of emergency vehicles. These cases exaggerate...
Collaborative Intelligent Transportation Systems are almost part of our everyday life. A C-ITS environment can provide numerous services that soon will become essential to roads' users. The latter resides in improvement of road safety, entertainment, and commercial services. However to provide such services, the C-ITS environment needs an advertisement and dissemination service of the latter. Indeed,...
A distributed network of vehicles well-known as Vehicular Ad Hoc Networks (VANETs) has created a new communication paradigm, which enables us to exploit the mobility of vehicles for data dissemination process within a geographical area of interest. Several data dissemination protocols have focused on two main problems in VANETs: broadcast storm and disconnected network. Moreover, the most of data...
With emphasis on Smart Cities as the future of our world, Vehicular Communication technology rises to the forefront of our focus to enable efficient and intelligent transportation systems. Vehicular communication relies on localization for various applications such as safety and traffic related ones. Current systems rely on Global Positioning Systems (GPS) to obtain vehicle position. Accurate localization...
In this study, we propose a variation of the RAdNet for vehicular environments (RAdNet-VE). The proposed scheme extends the message header, mechanism for registering interest, and message forwarding mechanism of RAdNet. Based on results obtained from simulation experiments, we compare the performance of RAdNet-VE against that of RAdNet, a basic content-centric network (CCN) using reactive data routing,...
The paper presents a start-up study and tests regarding the possibility of employing ZigBee communications for vehicle-to-infrastructure (V2I) communications. Such communications require less energy consumption, compared to other technologies and are recommended for dense urban areas, where the density of infrastructure equipment reaches higher levels and involves significant power consumption. A...
In recent years, the concept of Internet of Vehicles (IoV) is becoming a hot research issue. However, too much and clutter information received by drivers through IoV may affect their driving attention. It is necessary to provide drivers effective guide and notification services according to time, locations and events. This study proposes a Message Queue Telemetry Transport (MQTT) based guide and...
Local vehicle density estimation is an integral part of various applications of Vehicular Ad-hoc Networks (VANETs) such as congestion control and congestion traffic estimation. Currently, many applications use beacons to estimate this density. However, many studies show that the reception rate of these beacons can significantly drop at short distances due to a broadcast storm problem in high-density...
Recently developed algorithms quantify and subsequently evaluate COLREGS performance in collision avoidance scenarios based on vessel track data. Combining these evaluation algorithms with proposed categories of COLREGS rules allows for testing of collision avoidance performance in accordance with protocol requirements. This paper proposes a “road test” framework for autonomous marine vehicles prior...
In the future, VANET and IEEE 802.11p will play important role in ITS with many applications that improve the quality of traffic. Road environment is one of factors that influences the performance of the wireless communication. Especially for blind corner, the buildings which obstruct the signal may be a big challenge for the data transmission of safety applications. Thus, the performance analysis...
Experimental deployment of Cooperative Intelligent Transportation Systems have been undertaken these last years. But a real deployment is lower than expected. One reason is the lack of complete validation techniques which handle the whole system. The aim of this paper is to present a complete framework able to test each component involved in a C-ITS and which is able to check the interoperability...
We propose a multi-hop reliable broadcasting (M-HRB) scheme suitable for a wide range of vehicular ad-hoc network (VANET) applications in urban setting. Multi-hop reliability is performed using local state information. Basically, a street is divided into multiple cells to form grid-like zones. We apply a proactive local state processing scheme exploiting features of periodic beacons to estimate wireless...
Road intersections are considered to be bottlenecks for urban transportation whose impacts are longer travel times and wasted human resources. In this paper we focus on vehicle to vehicle communications (V2V) that allow exchanging data between vehicles. Considering that vehicles are controlled by drivers (not autonomous), we do not pretend to take control of them, nor is the goal to avoid collision...
Vehicular ad hoc network (VANET) is an important component for advancing the intelligent transportation system (ITS) to improve the traffic safety and enrich driving experience. In VANET safety applications, reliable and rapid dissemination of event-driven emergency messages is of great significance to obtain the traffic safety and efficiency. In this paper, we propose a RBEM/CBEM handshake mechanism...
In vehicular ad hoc networks (VANETs), vehicles communicate with each other and with roadside units (RSUs) in order to enhance road safety, improve traffic management and provide infotainment services. Along with the growth of VANETs, some challenges are emerging. Although there are many research work on VANETs, cheating attacks are still not well resolved such as selective message relaying attack,...
Vehicular ad hoc network (VANET) allows vehicles to communicate on the road and is becoming a potential solution to improve the traffic safety. Both trust management and privacy protection play critical roles in VANET but there needs to be a trade-off between them. Existing works only focus on each issue separately or resolve both issues with a lack-of-security proposal. In this paper, we propose...
For safety applications of Vehicular ad-hoc Network (VANET), many valuable broadcast protocols have been proposed nowadays, most of which are based either on sender or receiver. In fact, sender-based protocols would fall into invalidation owing to high mobility of vehicles, while receiver-based ones would generate extra delay. Combining both, this paper proposes a broadcast protocol with the minimum...
In Vehicular Ad-hoc Networks (VANETs), any vehicle uses a location service to get an up-to-date data of all vehicles' positions in its vicinity. Many location services rely on infrastructures to perform location update and location query tasks. However, the infrastructure penetration rate may differ from one region to another. We propose in this paper a new location service called Vehicle-Aided Location...
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