Priority Based Scheduling by Achieve Better Service Ratio in VANET

Vehicular ad-hoc network (VANET) is a part of Mobile ad-hoc network (MANET). VANET used to communicate between mobile vehicles as well as, between vehicles and Roadside Unit (RSU). They communicate using wireless medium on roads and it sake interest when vehicles increasing more and more. They communicate with each other, and communication may be emergency messages, normal messages, and/or lower priority messages. Now, VANET have issue that it has frequent disconnection issue because of high mobility. Because of that some requests could not be served on time. It affects achieving higher service ratio. There are some researches available to provide better service ratio by some scheduling policy, but they are not full proof as there is starvation problem because higher emergency request rate affect normal requests to be served. We propose a priority based scheduling algorithm to avoid starvation using aging technique along with better service ratio. Our scheduling algorithm will be capable of higher service ratio and better quality of service.