ITS-Application-Priority-MAC (ITS-APMAC) for Reliable Communication Over VANETs

Abstract

V2V communication suffers due to various factors i.e. short range wireless links, Collision, dynamic topology and VANET’s application compatibility with routing/MAC layer. Channel must be available for the safety applications and rest of slots may be allocated to other non-safety applications but MAC layer is not aware with the type of applications. So any application can access the medium at any time and MAC protocol manages the access to wireless medium. Unfair resource allocation to non-safety applications may interrupt the communication during critical circumstances like medical emergency/battlefield communication etc. Channel must be reserved for these types of application. In this paper, ITS-APMAC is introduced which can identify the application type and according to the rules, assigns the channel access to the applications.