In this demo we describe VIVAGr, a graphicaloriented real time visualization tool for vehicular ad-hoc network connectivity graphs. This tool enables the effective synthesis of structural, topological, and dynamic characteristics of VANET graphs, with a variety of parameters that affect the shape and characteristics of a vehicular ad hoc network. Keywordsreal-time graph visualization; VANETs; i...

Submitted: May 11, 2013; Accepted: Jun 18, 2013; Published: Jun 30, 2013 Abtract: The expansion in Ad-hoc wireless network and vehicular Ad-hoc networks, it is expected that traffic data will be collected and dispersed in real time by mobile sensors as a alternative of fixed sensors infrastructure. Routing in vehicular Ad-hoc networks is a challenging field of interest, due to high speed and ci...

VANET (Vehicular Ad-hoc Network) which is a hy- brid network (combination of infrastructure and infra- structure-less networks) is an emergent technology with promising future as well as great challenges especially in security. By the other hand this type of network is very sensible to safety problem. This paper focuses on a new mechanism for DoS (denial of service) attacks on the physical and ...

In different this paper we present the performance evaluation study of a simple broadcast data dissemination technique in new emerging Vehicular Ad hoc Networks (VANETs). Differently from the traditional Mobile Ad hoc NETworks (MANETs), VANETs require particular routing protocols, due to the high dynamism of the network topology, and to different traffic and mobility patterns. For safety and em...

Two types of ad hoc networks in mobile communications are mainly existing; one is Mobile Ad Hoc Network (MANET) and other one Vehicular Ad Hoc Network (VANET). Vehicular Ad Hoc Network (VANET) is highly demanded wireless ad hoc network. It is based on IEEE 802.11 wireless standard, which facilitates vehicle to vehicle and vehicle to roadside communications through air interface. Federal Communi...

There has been significant progress in the field of vehicular ad hoc networks (VANET) over the last several years which support vehicle-to-vehicle and vehicle-to-infrastructure communications. With the two types of communication modes, user can access the internet and existing mobility management can be reviewed. Mobility management and handoffs are the most challenging research issues for vehi...

This chapter introduces an integrated network and traffic simulation platform, called NCTUns. This platform provides the capabilities of road network simulation, communication and network protocol simulation, vehicular traffic simulation, and a feedback loop among them. As such, it is very suitable for advanced wireless vehicular ad hoc network research where a vehicle needs to change its movin...

In this paper, system operating margin (SOM) is estimated for vehicular ad-hoc networks in absence and presence of Rayleigh fading. The Ad-hoc IEEE 802.11 model is considered for estimating the signal strength and system operating margin. Rayleigh fading was then simulated and system operating margin are estimated in Rayleigh fading environment for different standard modulation schemes. Keyword...

The Mobile Ad hoc Network is the self configuring type of network in which no central controller is present. The vehicular Ad hoc network is the type of Ad hoc network in which vehicles move freely and communicate with each other. In vehicular ad hoc networks two type of communication is possible, that is; vehicle to vehicle and vehicle to infrastructure communication. As vehicle nodes have hig...