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In this study an Overtake Mishap preventive road safety system is designed. The System makes driver aware about the platoon of which its vehicle is a part. The system helps driver to know the overtaking behavior of back vehicle. The system with the help of front vehicle's response also guides driver when it decides to overtake it. The Road-Side-Devices help to maintain the communication amongst vehicles...
This paper investigates information services in vehicular networks via cooperative infrastructure-to-vehicle (I2V), vehicle-to-vehicle (V2V) communications. In particular, we consider the cooperation among multiple roadside units (RSUs) in a bidirectional roadway scenario in providing data services. The primary objective is to best explore the channel efficiency for I2V/V2V communications to maximize...
In this paper, we propose a black-box modeling framework for connected vehicle networks comprised of conventional vehicles and vehicles equipped with wireless vehicle-to-vehicle (V2V) communication. First, we identify the link length that is the number of vehicles between the broadcasting and the host vehicle. Based on the estimated link length, a linear model is used to approximate the dynamics of...
Recently, Vehicular Ad hoc Network (VANET) has been drawing dramatic attention from researchers and industrial bodies. Wireless Access in Vehicular Environments (WAVE) which is designed for VANET suggests to apply multiple channels, i.e., service channels (SCHs) and control channel (CCH), to provide entertainment services and safety services. In order to improve the utilization of wireless channel...
In this paper, we study the cooperation behavior of vehicles in a VANET (vehicle ad hoc network) for information dissemination. Any vehicle is only allowed to adopt one of two strategies at the same time: cooperation (forwarding) or defection (dropping), and may change its strategy periodically. We consider the scenario that the incentive for cooperation of any vehicle is controlled according to evolutionary...
In this paper, reconstruction and allocation transmission sequences are investigated for addressing media access control (MAC) without feedback in Vehicular Ad-hoc Network (VANET). Global Navigation Satellite Systems (GNSS) based code allocation is a great solution. It tessellates the geographic region to be covered into regular hexagonal quantization cell. All users access to their location information...
Position-based Routing Vehicular Ad-hoc Network (PBR-VANET) is a specific type of mobile Ad-hoc network where the nodes are present as vehicles and the routing is decided based on node position. However, PBR-VANET routing protocols greatly suffer from mass packet loss due to frequent changes in topology. We discuss the requirements of the routing protocol and propose a routing encapsulation protocol...
Maintaining communication links of an established communication path that extends between source and destination nodes is a significant challenge in Vehicular Ad Hoc Networks (VANETs) due to movement of the vehicles. In emergency applications for vehicular networks, users only interest the content in the messages that are related to them. Therefore, Named Data Networking (NDN) is a perfect match for...
Recently, Visible Light Communication (VLC) has been proposed as a low-cost and low-complexity technology for vehicular communications. In this paper, we propose a vehicular network architecture that enables wireless Infrastructure-to-Vehicle (I2V) and Vehicle-to-Vehicle (V2V) communication to provide value added services. The wireless communication technique chosen to enable the data transmission...
In recent times, Vehicular Ad Hoc Networks (VANETs) are increasingly gaining attention for their applicability in safe driving support systems. There are a variety of safety and route planning applications using VANETs such as emergency accidents warning, intersections warning, and road congestion warning applications. Vehicle visualization is an effective way to support safe driving. Visualized hidden...
From the decades ago, the ITS (Intelligent Traffic System) became one of the major research field. In order to save human lives, ITS safety applications collect various information from neighboring vehicles. For the ITS safety application, each vehicle periodically broadcasts beacon messages in order to update the information to the neighbors. However, due to the wireless nature of the ITS network,...
In this paper, we propose the spectrum and connectivity aware anchor-based routing protocol for cognitive radio vehicular ad hoc networks (CR-VANETs). The protocol has two modes: decision mode and forwarding mode. Decision is taken at the junctions to select the path which is highly connected and which has common idle channels between communicating vehicles. In forwarding mode, vehicles select the...
Traffic safety applications exploit vehicle-to-vehicle communication is an emerging and promising area within the intelligent transportation system (ITS) environment. This objective would be achieved essentially by the employ of efficient safety applications which should be able to wirelessly broadcast warning messages between neighboring vehicles in order to inform drivers about a dangerous situation;...
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...
Due to high mobility and intermittent connections in vehicular networks, reliable and efficient Vehicle-to-Vehicle (V2V) communication is a challenging task. The Named Data Networking (NDN) paradigm is recently being applied to achieve efficient V2V communication, however, proactive V2V information diffusion conflicts with the receiver-initiated nature of NDN. This paper bridges this gap by exploiting...
This study proposes a novel conical monopole antenna with a metallic lid connected to the antenna ground through four pillars. The proposed conical monopole antenna is only 0.14-λ0 in height, which is low profile, compact in size, and suitable for automotive antenna application. By using the metallic lid placed above the conical shell monopole antenna, the measured peak gain 6.6 dBi, efficiency 84...
Vehicle Ad hoc Network (VANET) is an emerging technology and a new application of mobile Ad Hoc technology in the field of traffic. As the simulation experiments cost less manpower and material resources and they are easy to reproduce the same scenario, VANET simulation technology has become a focus of scholars. But node mobility is strictly limited in the realistic traffic environment and fast moving...
Due to high mobility and intermittent connections in vehicular networks, reliable and efficient vehicular communication is a challenging task. Previous research on Vehicle-to-Vehicle (V2V) communication mostly focuses on achieving reliable transmissions from a given source to a given destination by mining moving patterns of taxicabs. However, to the best of our knowledge, none of them considered the...
Vehicular-to-Vehicular (V2V) and Vehicular-to-Infrastructure (V2I) communications in Vehicular Ad hoc Network (VANET) environment rely mainly on Medium Access Control (MAC) to minimize the delay and maintain reliable access to the communication medium. IEEE 802.11p standard is developed to achieve these goals. However its performance deteriorates drastically in large networks due to the high level...
Traffic congestion causes drivers' frustration and costs billions of dollars annually in lost time and fuel consumption. In order to overcome such issues, this paper presents a mechanism for Intelligent Transport Systems named FOX (Fast Offset XPath), which aims to detect and manage traffic congestion in Vehicular Ad hoc Networks. FOX is implemented in a FOG computing environment, taking advantage...
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