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.

翻译：实现高质量的无线交互式扩展现实（XR）需要在极低延迟下达到多千兆比特的吞吐量。频率范围在24至300GHz之间的毫米波频段能够实现这种极致性能。然而，由于毫米波通信具有固有的方向性，在用户高速移动时保持持续的高体验质量具有挑战性。本研究提出并评估了一种基于毫米波的移动XR系统的端到端方案。我们对该系统进行了高度真实的仿真，包含精确的XR数据流量、详细的毫米波传播模型和真实的用户运动轨迹。我们评估了波束成形策略和频率对整体性能的影响。此外，我们首次对CoVRage算法进行了系统级评估——这是一种专为高速移动XR环境设计的、具有空间感知能力的主动式用户侧波束成形方法。