Virtual reality streaming at the edge
Zichen Zhu, Nan Jiang, Tian Guo, Sheng Wei · 2019
This poster focuses on addressing the power consumption issues in 360-degree immersive video streaming on smart phones, an emerging virtual reality (VR) application in the consumer video market. We first conducted a power measurement study that indicates VR view generation as the major power consumption source. Then, we developed an edge-based immersive streaming system called EdgeVR that offloads the power-consuming view generation operation from the smart phone to the edge. Through our preliminary evaluations using EdgeVR, we identified the challenge of Motion-to-Photon latency associated with offloading. To reduce such latency, we propose a viewport prediction-based pre-rendering mechanism at the edge to ensure the quality of experience in the VR application.