Video Delivery in Dense 5G Cellular Networks
Video Delivery in Dense 5G Cellular Networks
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DOI：
10.1109/mnet.2017.1600298
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发表时间：
2017-07
期刊：
影响因子：
9.3
通讯作者：
A. Argyriou;Konstantinos Poularakis;G. Iosifidis;L. Tassiulas
中科院分区：
文献类型：
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作者：
A. Argyriou;Konstantinos Poularakis;G. Iosifidis;L. Tassiulas
移动网络运营商目前面临的主要挑战之一是高效地提供移动视频点播服务。为了满足他们的需求，我们必须彻底改变我们管理5G无线网络中密集部署的资源的方式，并为视频内容交付量身定制它们的运营。利用5G基础设施密度的两个关键方法是系统地使用BSS中可用的网络内存储资源来部署智能缓存策略，以及利用5G系统的新颖多层、密集和异类结构的视频交付优化技术。我们首先概述密集部署的5G网络的主要功能，这些网络预计将塑造移动VoD服务。接下来，我们将介绍最近针对上述每种方法提出的具体解决方案，并讨论从中吸取的主要经验教训。最后，我们讨论了密集5G系统中视频传输的一些有待解决的问题。
One of the main challenges for mobile network operators today is the efficient delivery of mobile VoD services. In order to satisfy their requirements, we must revolutionize the way we manage the densely deployed resources in 5G wireless networks, and tailor their operation for video content delivery. Two key approaches that leverage the density of the 5G infrastructure are the systematic usage of in-network storage resources available in BSs for the deployment of smart caching policies, and the video delivery optimization techniques that leverage the novel multi-tier, dense, and heterogeneous structure of 5G systems. We first provide an overview of the main features of the densely deployed 5G networks that are expected to shape mobile VoD services. Next, we present specific solutions that have recently been proposed for each one of the approaches above, and discuss the main lessons learned. Finally, we discuss a number of open problems for video delivery in dense 5G systems.