Using Vehicular Ad-Hoc Network (VANET) communication for a Cooperative Collision Warning System (CCWS) has been explored and has shown promise in improving vehicle safety. However, the performance of such a system under different adoption rates has not been examined in depth. We first examine what effects varying adoption rates will have on a CCWS protocol with a variable broadcast scheme. We t...

Privacy, security, and reliability are key requirements in deploying vehicular ad-hoc networks (VANET). Without those the VANET technology won’t be suitable for market diffusion. In this chapter, the authors are concerned with how to fulfill these requirements by using pseudonym-based authentication, designing security schemes that don’t endanger transport safety while maintaining low overhead....

VANET is the technology of building a robust Ad-Hoc network between mobile vehicles and each other, besides, between mobile vehicles and roadside units. Throughout the world, there are many national and international projects in governments, industry, and academia devoted to the development of VANET protocols. In this paper I have reviewed the various security protocols used for vehicular ad ho...

The performance of VANET remains optimum within thousand meters and after that due to high packet loss rate communication among vehicles is not feasible. Finding optimal path is a typical task for dynamic protocols. The research objective is to study some of the important QOS metrics in VANET & vehicular traffic management solutions to improve overall safety of traffic. Keywords— Vehicular Ad h...

The multitude of applications and services in Vehicular Ad hoc NETwork (VANET) and cloud computing technology that are dreamed of in the near future, are visible today. VANET applications are set to explode in the next couple of years as a result of the advancements in the wireless communication technologies and automobile industry. Nevertheless, it is speculated that future high-end vehicles w...

Vehicular Ad hoc Network (VANET) is a network of self organized vehicles and road-side infrastructure communicating with each other over wireless, with a view to improve traffic safety and efficiency. Data interchanged over VANETs often play a vital role in traffic safety. Such information must be accurate and truthful, as lives could depend on this application. Thus, Authentication is one of t...

In this paper, we study the capacity of Vehicular Ad Hoc NETwork (VANET). Due to the particular topology of such a network, results on the capacity of two dimensionnal ad hoc networks are not convenient. Indeed, the nodes are ditributed on a line (the road or the highway), thus they form a chain of nodes. This particular topology reduces the spatial reuse with regard to two dimensionnal network...

A vehicular ad hoc network (VANET) is a vehicular-wireless network enabling vehicle-to-vehicle (V2V) communications and vehicle to infrastructure (V2I) communications. VANET has been under the international spotlight because various applications can be developed by leveraging those wireless communications to avoid vehicular collisions or to save energies. Most of VANET applications have been de...

Vehicular Ad hoc Networks (VANET) is a subgroup of (Mobile Ad Hoc Networks) MANET which is using for improves traffic safety system. Since the movements of Vehicles are restricted by roads, traffic regulations we can deploy fixed infrastructure at critical locations. We focus our study on the different kind of attacks and its behaviour or impact in safety system and how many challenges; we have...

Vehicle Ad-hoc Network (VANET) has recently received a lot of attention as the fundamental technology of Intelligent Transportation System. Among other characteristics of VANET, the rapid mobility particularly causes the problem of time constraint in delivery of data, thereby resulting in the low data accessibility. Therefore, the requested service is likely to suffer from poor performance. Thi...