Path planning based QoS routing in VANET

Vehicular ad hoc networks (VANETs) is an emerging technology which has received lot of attention due to its potential to improve vehicle and road safety, traffic control, efficiency as well as convenience for users. VANET is a sub category of mobile ad hoc network (MANET). A lot of research in VANET is done on routing, broadcasting, Quality of Service (QoS) and security. This paper proposes a novel path planning algorithm for reliable and efficient routing. The proposed system will traditionally distribute the work load over alternate paths in order to avoid congestion and reduce travel cost. It ensures reliable routing with less bandwidth requirement as it manages large size packets by dividing into parts and sending via alternate path. VANET may be affected by attacks on routing leading to altering messages and routes which will affect QoS parameters. The proposed algorithm will also deal with providing security measures over the routing process. Therefore, we obtain routing algorithm subject to multiple QoS constraints for secure communication in VANET.