Performance Analysis of CSMA, MACA and MACAW Protocols for VANETs

Abstract

Vehicular Ad Hoc Networks (VANETs) are a special type of Mobile Ad Hoc Networks (MANETs). Recent advances in various wireless communication technologies and the emergence of computationally rich vehicles are pushing VANET research to the forefront in academia and industry. A lot of research results have been published in various areas (such as routing, broadcasting, security and others) of VANET in the last decade covering both vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) scenarios. One specific area of VANET that still faces significant challenges is the design of reliable and robust media access control (MAC) protocols for V2V communications. Many algorithms of V2V MAC methods (including various VANET standards) have been proposed for VANETs over the last, few years that also focused on the benefits and limitations of the proposed MAC techniques as well as their ease of implementation in practice and future deployment. In this paper, we have made the performance analysis of Carrier sense multiple access (CSMA), Multiple Access with Collision Avoidance (MACA) and Multiple Access with Collision Avoidance for Wireless (MACAW) for VANET environment.