Multi-path multi-tier 360-degree video streaming in 5G networks
Multi-path multi-tier 360-degree video streaming in 5G networks
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DOI：
10.1145/3204949.3204978
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发表时间：
2018-06
期刊：
影响因子：
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通讯作者：
Liyang Sun;F. Duanmu;Yong Liu;Yao Wang;Y. Ye;Hang Shi;David H. Dai
中科院分区：
文献类型：
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作者：
Liyang Sun;F. Duanmu;Yong Liu;Yao Wang;Y. Ye;Hang Shi;David H. Dai
360°视频流是新兴的虚拟现实（VR）和增强现实（AR）应用的关键组成部分。在360°视频流传输中，用户可以通过改变她期望的视场来自由地浏览所捕获的360°视频场景。由5G无线网络实现的高吞吐量和低延迟数据传输可能有助于实现不受限制的360°视频流体验。与此同时，5G无线链路的高波动性为流畅的360°视频流带来了前所未有的挑战。在本文中，新的多路径多层360°视频流解决方案的开发，同时解决网络带宽和用户观看方向的动态。我们系统地研究各种设计权衡流媒体质量和鲁棒性。通过真实的5G网络带宽轨迹和用户观看方向轨迹驱动的模拟，我们证明了所提出的360°视频流解决方案可以在具有挑战性的5G无线网络环境中实现高水平的体验质量（QoE）。
360° video streaming is a key component of the emerging Virtual Reality (VR) and Augmented Reality (AR) applications. In 360° video streaming, a user may freely navigate through the captured 360° video scene by changing her desired Field-of-View. High-throughput and low-delay data transfers enabled by 5G wireless networks can potentially facilitate untethered 360° video streaming experience. Meanwhile, the high volatility of 5G wireless links present unprecedented challenges for smooth 360° video streaming. In this paper, novel multi-path multi-tier 360° video streaming solutions are developed to simultaneously address the dynamics in both network bandwidth and user viewing direction. We systematically investigate various design trade-offs on streaming quality and robustness. Through simulations driven by real 5G network bandwidth traces and user viewing direction traces, we demonstrate that the proposed 360° video streaming solutions can achieve a high-level of Quality-of-Experience (QoE) in the challenging 5G wireless network environment.