Cross Layer Using End-to-end Delay Assessment for Routing Protocol in Vehicular Ad Hoc Network

The moving with fast velocity of each node in vehicular ad hoc network (VANET) results in the existence transient communication links, which degrade the performance of developed protocols. Established routes frequently become invalid, and existing communication flows are interrupted, incurring delay and additional overhead. In this paper we use cross layer approach solving these problems. Firstly, we concentrate on measurement end-to-end delay in VANET. Subsequently, we use the end-to-end delay assessment of medium access control (MAC) layer for building route metric in network layer with the aim of shrinking route discovery time. For deploying route model we use hybrid routing protocol (combined between proactive and reactive routing protocol) aiming reduce route overhead, accelerate route convergence speed, and enhance route quality in routing table in each node. The simulation results illustrate outstanding features of our proposed model.