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This article presents an Android application for safety driving based on OsmAnd, an open source platform offering offline maps and navigation. Our application extends OsmAnd to achieved smart navigation features by creating a network of vehicles. These features allow informing regular vehicles about incoming emergency vehicles, which include ambulances, police cars and fire brigades. The goal is to...
Vehicles are increasingly equipped with sensors for safety applications. Sharing information among vehicles can further improve the safety of the overall transportation environment. Enabling each vehicle to get the “right information at the right time” can be valuable to avoid dangerous situations. Information-Centric Networks (ICN) that use the notion of “named-objects” enable information dissemination...
The increasing interest in vehicular communications draws attention to scalability and network congestion problems and therefore on techniques to offload the traffic, typically carried through the infrastructure, to the Vehicle-to-vehicle (V2V) network. Floating content (FC) represents a promising paradigm to share ephemeral content without direct support from infrastructure. It is based on constraining...
The number of on-road vehicles has increased by almost 140% over the past decade, thereby increasing pollution levels, congestion and fuel consumption. To contain such a situation, Vehicular Ad-Hoc Network (VANET) technology is almost on the verge of large scale practical deployment. Hence, the aim is to provide a system to control the above using VANET and to provide an infrastructure to reduce the...
Automotive networks are simple, real-time networks with very low error rates. In-vehicle infotainment (IVI) systems include GPS-based navigation and wireless hotspots for cellular communication. In the event of a power outage or a major catastrophe, such as an earthquake, existing network mainframes may either shut down completely or become overloaded with traffic. In that regard, it is important...
In recent years, vehicular networks have been drawing special attention because of its significant potential role in future smart city regarding traffic efficiency improvement and road safety. Safety's crucial status in vehicular networks is determined by its direct impact on people's lives. Several security services based on cryptography, PKI and pseudonymous have been standardized in the past few...
Greedy routing in VANETs requires some geographical informations, such as the source location and the destination location. The first one could be obtained using some localization devices like GPS receiver. However, the second one is provided by a location service. This later has a high overhead especially if it is implemented over V2V (vehicle to vehicle) communications. Many location services are...
In hybrid vehicular ad hoc networks (VANETs), content data can be downloaded either from 3G/4G cellular networks or from roadside units (RSUs) of VANETs. When downloading via cellular networks, the delay is low but the cost is expensive. While, downloading via VANETs, the cost is nearly free. However, due to the unique characteristics of VANETs, such as frequent disruptions, high speed mobility and...
Heavy vehicles driving as platoon with highly reduced inter-vehicle gaps has shown considerable fuel saving potential, but put high timing and reliability requirements on the underlying control data exchange. The recently standardized IEEE 802.11p protocol suite for Vehicular Ad-Hoc Networks (VANETs) and its message types do neither support the demands of a platooning application nor take advantage...
The increasing need for mobility has revealed inefficiencies related to transportation, such as congestion, accidents and environmental pollution. An innovative solution to achieve more efficient and safer mobility is to attribute to vehicles embedded intelligence functionality. This paper introduces a framework for providing intelligence to vehicles. The framework operates by collecting contextual,...
Vehicular Ad-hoc Networks (VANETs) using a connected-car technology can support safety-critical applications in Cooperative Intelligent Transportation Systems (C-ITS). While WAVE/DSRC has been investigated by a number of researchers to support VANETs, it may not be easy to distribute WAVE/DSRC in the near future due to several practical obstacles. In this paper, we discuss an alternative to support...
Recent works on enhancing comfortability and convenience in vehicles reveal that information collections by various wireless sensor nodes have the potential due to their easiness of install and their small size. However, the conventional wireless network standards achieve insufficient reliability for practical in-vehicle communications. In this paper, through implementing 2.4GHz devices in an actual...
In vehicular ad hoc networks, network coding and cooperative for message propagation have attracted considerable attention as ways to reduce the outage probability to improve the system performances. In this paper, we analyze the exact expression of outage probability and give an approximated expression over the Nakagami-m fading channel with dynamic network coding(DNC) and MIMO dynamic networks coding(MIMO-DNC)...
It does not seem easy to generate reliable routes in Vehicular Ad-hoc Networks (VANETs) because of frequent link failures caused by vehicle's mobility. In this regard, we analyze the characteristics of topology-based routing protocols in order to assess the feasibility of each protocol for vehicular environments. We plan to design an efficient routing protocol for VANETs in order to generate reliable...
VANETs is used to provide the network environment for intelligent transportation system in which the node speed is very high and topology changes frequently. So that route acquisition and nodes communications in the network are the tedious task. We can't apply the routing protocols of MANETs on VANETs directly. In this paper we describe an approach that is based on firefly algorithm (an implementation...
Privacy in Vehicular Ad-hoc NETworks (VANETs) is one of the most important issues to attract users to this new technology. In this paper we propose a novel protocol that allows vehicles using the same application in a VANET to agree on an encryption key to exchange confidential data while preserving the privacy. We do this by combining the Elliptic Curve Integrated Encryption Scheme (ECIES) with ring...
In this work, the analysis of the performance of a Wireless Sensor Network integrated within urban infrastructure employed in an Infrastructure to Vehicle network will be presented. Features of a realistic scenario in which urban vehicles will be located will be analyzed with the aid of in-house implemented 3D Ray Launching code, in which the scenario, including urban furnishing, vehicles and users...
In this paper, we propose a hierarchical architecture based on software defined networking (SDN) to manage the physical resources in vehicular ad-hoc networks (VANETs), namely sdnMAC. First of all, a novel roadside unit (denoted by ROFS) is designed, which is an OpenFlow switch equipped with a wireless interface. Then, a hierarchical architecture is proposed for sdnMAC, consisting of two tiers, one...
Vehicular ad hoc networks based on IEEE 802.11 OCB suffer from channel congestion, which will be critical for safety applications when the channel becomes saturated. Therefore, decentralized congestion control (DCC) is needed that keeps the channel load under a pre-defined threshold. In the European system for vehicular communication, a DCC-gatekeeper has been inserted into the protocol stack that...
Cooperative routing has gained promising approach in Adhoc networks where nodes are assumed to be static. Recently there has been an increased heed in the cellular and vehicular Adhoc Networks (VANETs) where links between vehicles to vehicle are not fixed and inefficient. Towards this there exists only one cooperative routing scheme, Cross layer Cooperative Routing (CLCR) for route discovery on the...
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