  We report results from millimeter wave vehicle-to-infrastructure (V2I)
channel measurements conducted on Sept. 25, 2018 in an urban street
environment, down-town Vienna, Austria. Measurements of a frequency-division
multiplexed multiple-input single-output channel have been acquired with a
time-domain channel sounder at 60 GHz with a bandwidth of 100 MHz and a
frequency resolution of 5 MHz. Two horn antennas were used on a moving
transmitter vehicle: one horn emitted a beam towards the horizon and the second
horn emitted an elevated beam at 15-degrees up-tilt. This configuration was
chosen to assess the impact of beam elevation on V2I communication channel
characteristics: propagation loss and sparsity of the local scattering function
in the delay-Doppler domain. The measurement results within urban speed limits
show high sparsity in the delay-Doppler domain.
