690 research outputs found

    Requirement analysis for building practical accident warning systems based on vehicular ad-hoc networks

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    An Accident Warning System (AWS) is a safety application that provides collision avoidance notifications for next generation vehicles whilst Vehicular Ad-hoc Networks (VANETs) provide the communication functionality to exchange these notifi- cations. Despite much previous research, there is little agreement on the requirements for accident warning systems. In order to build a practical warning system, it is important to ascertain the system requirements, information to be exchanged, and protocols needed for communication between vehicles. This paper presents a practical model of an accident warning system by stipulating the requirements in a realistic manner and thoroughly reviewing previous proposals with a view to identify gaps in this area

    Advancement in infotainment system in automotive sector with vehicular cloud network and current state of art

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    The automotive industry has been incorporating various technological advancement on top-end versions of the vehicle order to improvise the degree of comfortability as well as enhancing the safer driving system. Infotainment system is one such pivotal system which not only makes the vehicle smart but also offers abundance of information as well as entertainment to the driver and passenger. The capability to offer extensive relay of service through infotainment system is highly dependent on vehicular adhoc network as well as back end support of cloud environment. However, it is know that such legacy system of vehicular adhoc network is also characterized by various problems associated with channel capacity, latency, heterogeneous network processing, and many more. Therefore, this paper offers a comprehensive insight to the research work being carried out towards leveraging the infotainment system in order to obtain the true picture of strength, limitation, and open end problems associated with infotainment system

    Broadcasting Protocol for Effective Data Dissemination in Vehicular Ad Hoc Networks

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    VANET topology is very dynamic due to frequent movements of the nodes. Using beacon information connected dominated set are formed and nodes further enhanced with neighbor elimination scheme. With acknowledgement the inter section issues are solve. A modified Broadcast Conquest and Delay De-synchronization mechanism address the broadcasting storm issues. Although data dissemination is possible in all direction, the performance of data dissemination in the opposite direction is investigated and compared against the existing protocols

    Vehicular Adhoc Network – A Review

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    Vehicular ad hoc network (VANET) is a most important type of network, which has characteristics to provide vehicle-to-vehicle (V2V) and vehicle to infrastructure(V2I) communication on the road. It is an approach for intelligent transportation system. VANET Works like as mobile ad hoc network. It provides many applications like as message transmission from one vehicle to another, data transmission, map guidance, entertainment and so on. VANET helps to reduce the causes of accidents on a highway. Vehicles can convey messages related to status of the road and other informational messages to each other. Throughout this paper, we will discuss simulation tools, architecture, applications, security concern and routing approaches used for message communication among vehicles. We provide a research review on vehicular ad hoc network

    An Innovative Technique to Avoid Traffic Jamming for VANET Using NS-2

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    A range of efficient control of vehicles has grown together with information and communication tools In scrupulous, with the appliance of wireless network for real world information offering, it has been feasible to create Vehicular Ad-hoc Network (VANET), an intellectual vehicle service for ease and protection, which does feasible crash accident detection and prevention, caution of hazardous aspects on road, traffic information offering, and other types of service offering. Nevertheless, the VANET service situation has physical and technical vulnerabilities sourced by the vehicular inside/outside communication based on wireless network. Thus, Vehicular protection has become known as a crucial aspect to avert malevolent threats and confidentiality defiance from vehicles, drivers, and traffic network. In this paper we proposed a scheme for discovering the routing mischief of an attacker aligned with traffic jamming. Now if the congestions take place in a particular section then in that case all vehicular nodes would produce the traffic jam indications known as Jamming declaration indications to their fellow vehicles and through that the vehicular node would modify their direction. Performances of outcomes are calculated on the basis of parameters: Packet Delivery Ratio, Routing Load and Throughput using Network Simulator (NS-2). Keywords: VANET (Vehicular Ad-hoc Network), Vehicle security, traffic jamming, Road Side Uni
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