RIS	Reconfigurable intelligent surface
BS	Base station
CSI	Channel state information
ITS	Intelligent transportation system
V2V	Vehicle-to-vehicle
V2I	Vehicle-to-infrastructure
V2P	Vehicle-to-pedestrian
V2N	Vehicle-to-network
V2X	Vehicle-to-everything
5G	Fifth-generation wireless network
6G	Sixth-generation wireless network
mmWave	Millimeter wave
3GPP	Third-Generation Partnership Project
LOS	Line-of-sight
SNR	Signal-to-noise ratio
LS	Least squares
SDR	Semidefinite relaxation
SDP	Semidefinite programming
AO	Alternating optimization
CS	Compressive sensing
CPU	Central processing unit
GPU	Graphics processing unit