Improved Key Management and Security in Dynamic Wireless Sensor Networks

In recent years, lots of research is being done in Vehicular ad hoc networks and it becomes popular on different aspects of VANETS. Vehicular ad hoc networks (VANETS) is generally a system that consists of mobile nodes such as laptops, sensors, etc. interfacing without the assistance of access points, bridges, etc. several research have made in terms of routing, synchronization, bandwidth considerations, power consumption, etc. This paper concentrates only on multipath routing techniques which is the most challenging issue occurs due to the dynamic topology of ad hoc networks. Based on the network conditions the routing protocols are selected but it faces some difficulty while selecting the exact protocol. Hence, this paper provides a detail comparison between two routing protocols namely, Ad-hoc On-Demand Multipath Distance Vector Routing (AODV), Dynamic Source Routing and Destination-Sequenced Distance Vector routing. Finally, the best protocol is selected with high transmission rate, low delay and less energy consumption and implemented in the key management applications and also efficient simple VANETS based data transmission module is made with improved efficiency and limited delay.