UC San Diego

Recent year has witnessed an explosive growth in the demand for intelligent vehicles. In particular, multi-gigabit throughput and high reliability of vehicle communications are the key requirements to enable intelligent vehicles. Although mmWave is believed to be the right track to meet the extreme throughput requirement, its reliability for vehicle communications is still unclear due to the directional beams and limited field-of-view (FoV). In this thesis, we present the first comprehensive reality check on millimeter-wave vehicle-to-everything (mmWave V2X) communications. We leverage both real-world measurements using COTS devices and large scale simulation using high-fidelity 3D ray-tracer to explore the feasibility of mmWave V2X. Specifically, we study the basic performance, impact of vehicle mobility and obstacle blockage, the effect of codebook/beam management and multi-array basestaion, and the potential solutions to MU-MIMO and interference management. By extensive evaluations, we correct some common misunderstandings and show that mmWave V2X is feasible and its major concerns can be addressed by simple solutions.