In this paper, an antenna synthesis process is investigated
for Intelligent Transportation System (ITS) application.
The wireless communication between Road Side Units (RSUs) and
On Board Units (OBUs) located in the vehicles enables smart
mobility. However, to support high speed vehicles and high data
rates, a wider coverage area by the RSU antennas projected on
the highway is required. This is defined by the radiation patterns
of the RSU antennas. On a multi-lane highway, interference from
the adjacent lanes is a critical issue which determines the communication
reliability in terms of Single-to-Interference plus Noise
Ratio (SINR). Hence, in this paper, an interference-aware antenna
synthesis process is proposed and a planar array is optimized based
on the objective function of obtaining awide coverage area in terms
of SINR distribution for a given modulation scheme. The proposed
antenna array enhances the reliable communication area and provides
improved SINR distribution across the lane for misaligned
vehicles from the center of the lane. The results indicate that the
proposed antenna array performs better than the existing designs
in terms of communication reliability.