A Cross-Layered Interference in Multichannel MAC of VANET

Recently, with the various issues experienced in street mobility, the presence and improvement of the Vehicular Ad hoc Networks (VANETs) become a necessity. VANETs has distinctive positive effects on vehicular safety, street security, traffic the executives, drivers' comfort and passengers' convenience. Roads have encountered an increase in traffic congestion as a reason for the growth in population density. Thus, people face drastic delays that lead to a radical impact on the economics, society and environment. In this paper, we propose a novel Signal to Interference Routing (SIR) protocol that aims to discover the best routing path between source and destination. SIR differs from existing protocols by proposing a new metric that depends on Signal to Interference (SIR) at each Service Channel (SCH) of each node from source to destination. The proposed protocol aims to minimize interferences in vehicular environment considering both MAC and routing layers. We use Network Simulator NS-2.35 in order to implement and evaluate the proposed protocol. The results show significant improvements concerning an end to end delay, throughput and packet delivery ratio.