  Achieving high-quality wireless interactive Extended Reality (XR) will
require multi-gigabit throughput at extremely low latency. The Millimeter-Wave
(mmWave) frequency bands, between 24 and 300GHz, can achieve such extreme
performance. However, maintaining a consistently high Quality of Experience
with highly mobile users is challenging, as mmWave communications are
inherently directional. In this work, we present and evaluate an end-to-end
approach to such a mmWave-based mobile XR system. We perform a highly realistic
simulation of the system, incorporating accurate XR data traffic, detailed
mmWave propagation models and actual user motion. We evaluate the impact of the
beamforming strategy and frequency on the overall performance. In addition, we
provide the first system-level evaluation of the CoVRage algorithm, a proactive
and spatially aware user-side beamforming approach designed specifically for
highly mobile XR environments.
