Vehicular communication is an important and emerging area of research in the field of vehicular technology. The development of software and hardware in communication systems leads to the generation of new networks. Many researches and projects have been conducted in this upcoming area. Many government projects have been implemented in the USA, Japan and the European Union. The main objective of using this new technology is to create an accident free environment. New architectures, protocols and implementations of vehicular ad-hoc network (VANET) have been made in recent years to provide Intelligent Transportation Services. In this study, the authors survey the current issues like development, deployment, security challenges and about the current projects running in different countries. They also survey the mobility models and simulators required to implement VANET. They have also reviewed the emerging applications of VANET which provides services to the end users. At last, they have presented future research problems in VANET. The main motive of this survey is to explore the current ideas in vehicular communication.

No abstract

No abstract

Security in routing is an important issue in vehicular ad hoc network (VANET) to protect the valuable information. However, this intelligent transportation system (ITS) services provided by VANET are affected by the malicious vehicles. In this study, a secure and intelligent routing (SIR) protocol is proposed to transmit the data in a quickest path through the authenticated vehicles. Sending the data in a most connected path with less link connection problem enhances the system performance and selecting the authenticated vehicles in this quickest path protects the system from the malicious attacks. In this protocol, a weight W is calculated for every neighbouring junction J neighbour by using the safety message transmission model, delay model, link connectivity model and vehicle position model. The J neighbour with minimum W is selected as the junction through which the data are forwarded to the destination D. Simulation results show SIR performs better than secure path routing protocol, greedy traffic-aware routing, anchor-based street and traffic aware routing and geographic source routing protocols in terms of average end-to-end delay, network gap encounter and path length.

No abstract

No abstract

No abstract

No abstract