Security is an important issue in the VANET environment and the Sybil attack affects it the most. In Sybil attack a node illegally claims itself as a legitimate node using multiple identities. This paper systematically analyses about Sybil attack and its effect in the VANET. We establish a Signal and Time clustering (STC) algorithm to detect the Sybil attack in VANET. The scheme provides a low ...

Nowadays, everything is moving towards the infrastructure less wireless environment to bring the smartness of the society. In this situation, it is necessary to bring the smart technologies in the adhoc network environment. As vehicular traffic is a foremost problem in modern cities and on highway. Huge amount of time and resources are wasted while traveling due to traffic congestion. VANET is ...

Human safety considerations linked with rapidly growing auto mobile market has given special attention to the Intelligent Transportation System (ITS). ITS provides a set of standards for inter vehicular communication with emphasis on safety, traffic efficiency and infotainment related applications. In ITS, the vehicles acting as mobile nodes, form a specialized ad hoc network, known as Vehicula...

Vehicular Ad hoc Networks (VANETs) are classified as an application of Mobile Ad-hoc Networks (MANETs) that has the potential in improving road safety and providing Intelligent Transportation System (ITS). Vehicular communication system facilitates communication devices for exchange of information among vehicles and vehicles and Road Side Units (RSUs).The era of vehicular adhoc networks is now ...

VANET can be formed by connecting vehicles with internet access by drivers. Vehicles running with different speed, directions and locations can form ad-hoc network to solve various problems in human life such as traffic management, safety in transportation, utilization of transport resources and many ad-hoc applications for mobile users. Method used for protecting such as clustering, anonymizat...

Simulations play a vital role in implementing, testing and validating proposed algorithms and protocols in VANET. Mobility model, defined as the movement pattern of vehicles, is one of the main factors that contribute towards the efficient implementation of VANET algorithms and protocols. Using near reality mobility models ensure that accurate results are obtained from simulations. Mobility mod...

Vehicular Ad hoc Network (Vanet) is one of the emerging technologies to support safety, traffic monitoring and comfort related services. Vanet is a subclass of MANET but its topology changes rapidly and network gets disconnected frequently. The prevailing routing protocol of MANET is very much applicable to Vanet. Because of its frequently disconnecting routes it is difficult to design an effic...

A vehicle ad hoc network (VANET) is a solution for road safety, congestion management, and infotainment services. Integration of cognitive radio (CR), known as CR-VANET, needed to solve the spectrum scarcity problems VANET. Several research efforts have addressed concerns CR-VANET. However, more reliable, robust, faster sensing still challenge. novel segment-based CR-VANET (Seg-CR-VANET) archit...

During the last few years, VANET has become an active area of research. Vehicle on road like car, busses, van etc. perform the role of node in VANET that moved in unbounded area and in any direction with varying speed. These nodes makes traffic in VANET and have high dynamic nature from which communication path is disconnected frequently in between source and destination nodes. The process of d...

Vehicular Ad hoc Network (VANET) is very promising technique to increase traffic safety. This will help in saving life of many people from road accidents. VANET uses vehicle to vehicle communication to inform about the location of other vehicles and the traffic density. There are many routing protocols described in VANET. Position-based protocols are best suited in highly dynamic topology envir...