signal to noise ratio is measured for each beam and the beam with an optimal snr is selected as an optimal beam for communicating data between the mobile transceiver and the stationary transceiver application_number US 41386809 A description fig1 shows a network that uses embodiments of our invention the network uses orthogonal frequency division multiplexing ofdm and provides wireless access in vehicular environments wave the network includes a set of mobile transceivers 101 and a set of stationary road side units rsus 102 the mobile transceivers are mounted in vehicles and are connected to an array of antennas 201 the communication 111 between the rsus and the vehicle is called vehicle to infrastructure v2i and the communication 112 between vehicles is called vehicle to vehicle v2v fig2 shows an array of antennas 201 and a beam pattern at a transmitter that includes a main beam lobe 202 with a highest gain at an angle u03c6 orthogonal with respect the array and side beams 203 with much lower gains beams can also be formed at the receiver the signals received by the different antennas it is understood that other antenna design are possible to provide different beam patterns the collinear array of antennas is preferably mounted vertically to increase overall gain and directivity in the horizontal direction as shown in fig3 each transmitted signal received at each.