Traffic Characteristics of Virtual Reality over Edge-enabled Wi-Fi Networks

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PubDate: Nov 2020

Teams: University of Delaware;Cisco Systems

Writers: Seyedmohammad Salehi, Abdullah Alnajim, Xiaoqing Zhu, Malcolm Smith, Chien-Chung Shen, Leonard Cimini

PDF: Traffic Characteristics of Virtual Reality over Edge-enabled Wi-Fi Networks

Abstract

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.

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