Vehicular Ad Hoc Network (VANET) emerges to ameliorate road accident, traffic congestion, and infotainment. Cognitive radio (CR) is integrated with VANET (termed as CR-VANET) deal the spectrum scarcity problems. For better data transmission, routing very important in a highly dynamic CR-VANET environment. Routing has several challenges due vehicles’ high-speed movements channel accessibility is...

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract Vehicular ad-hoc network (VANET) is special class of the MANET that consists of vehicle to vehicle communication and vehicle to roadside communication. Vehicular Ad-hoc network (VANET) requires trusted vehicles to vehicles communication. In this pa...

In the performance evaluation of a protocol for a vehicular ad hoc network, the protocol should be tested under a realistic conditions including, representative data traffic models, and realistic movements of the mobile nodes which are the vehicles (i.e., a mobility model). This work is a comparative study between two mobility models that are used in the simulations of vehicular networks, i.e.,...

In VANET high speed is the real characteristics which leads to frequent breakdown, interference etc. Therefore Performance of adhoc routing protocols is helpful to improve the Quality of Service (QOS). In this paper we studied various adhoc routing protocols, Reactive, Proactive & Hybrid, taking in to consideration parameters like speed, altitude, mobility etc in real VANET scenario. The AODV a...

In this paper we study the feasibility of disseminating reports about resources via vehicular ad-hoc networks. Each disseminated report represents information about a spatial-temporal event, such as the availability of a parking slot at a particular time. The simple flooding algorithm is used for dissemination in a VANET. The feasibility is analyzed by comparing the effectiveness of VANET with ...

Vehicular ad hoc networks (VANET) are a Class of MANETs used for communication among vehicles and between vehicles and roadside equipment. VANET provide the communication framework for dissemination of safety critical message such as beacons and emergency messages. Due to the technological involvement there are more number of wireless devices, which also creates more congestion in the wireless ...

Vehicular ad hoc network (VANET) is one of the most modern and promising technologies for revolutionizing the transportation system where vehicles can communicate via a wireless medium. The IEEE 802.11p includes communication between vehicles (V2V) and between vehicle and roadside infrastructure (V2I). VANET provide the communication framework for dissemination of safety critical message such a...

Vehicular Ad hoc Network (VANET) is one of the technologies that have been developed to solve problems in the transportation area. VANET is an Ad hoc network with vehicles as the nodes of the network. VANET technology comes from the improvement of the Mobile Ad hoc Network (MANET). In fact, route searching algorithm is needed to avoid congestion by dividing the load of the vehicle. This researc...

In this paper, the study focuses on the various mobility and handover management schemes for different networks (like heterogeneous/homogeneous networks) in Vehicular Ad hoc Network (VANET). Internet Engineering Task force (IETF) purposed MIPv4/v6 (Mobile Internet Protocol-version4/6) and its enhancements like HMIPv6 (Hierarichal), FMIPv6 (Fast), FHMIPv6, PMIPv6 (Proxy) are various mobility man...

Vehicular ad hoc network (VANET) can offer various services and benefits to VANET users and thus deserves deployment effort. Misusing such network could cause destructive consequences. It is therefore necessary to discourage misbehavior and defend VANET systems against it, in order to ensure correct and smooth operations of the network. In this paper, we review the techniques for handling misbe...