Virtual reality (VR) is becoming prevalent with a plethora of applications in education, healthcare, entertainment, etc. To increase the user mobility, and to reduce the energy consumption and production cost of VR head mounted displays (HMDs), wireless VR with edge-computing has been the focus of both industry and academia. However, transferring large video frames of VR applications with their stringent Quality of Service (QoS) requirements over wireless network requires innovations and optimizations across different network layers. In order to develop efficient architectures, protocols and scheduling mechanisms, the traffic characteristics of various types of VR applications are required. In this paper, we first compute the theoretical throughput requirements of an ideal VR experience as well as a popular VR HMD. We then examine the traffic characteristics of a set of VR applications using an edge-enabled Wi-Fi network. Our results reveal interesting findings that can be considered in developing new optimizations, protocols, access mechanisms and scheduling algorithms.

中文翻译：

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虚拟现实在支持边缘的 Wi-Fi 网络上的流量特征

虚拟现实 (VR) 在教育、医疗保健、娱乐等领域的应用越来越广泛。 为了增加用户的移动性，并降低 VR 头戴式显示器 (HMD) 的能耗和生产成本，具有边缘的无线 VR -计算一直是工业界和学术界的焦点。然而，通过无线网络传输具有严格服务质量 (QoS) 要求的 VR 应用程序的大型视频帧需要跨不同网络层进行创新和优化。为了开发高效的架构、协议和调度机制，需要了解各类 VR 应用的流量特性。在本文中，我们首先计算了理想 VR 体验以及流行的 VR HMD 的理论吞吐量要求。然后，我们使用支持边缘的 Wi-Fi 网络检查一组 VR 应用程序的流量特征。我们的结果揭示了有趣的发现，可以在开发新的优化、协议、访问机制和调度算法时考虑这些发现。