自适应视频传输的多层边缘到云架构

R. Immich, L. Villas, L. Bittencourt, E. Madeira
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引用次数: 6

摘要

在过去的几年中,各种实时视频服务和应用迅速扩散。这些技术使无线系统每天都充斥着视频内容。由于视频流量的急剧增加,由于网络干扰和拥塞而导致错误的可能性上升。顺便说一句,第五代无线系统(5G)的采用将使这种增长变得更大,因为它具有高带宽容量和低延迟。然而,即使无线功能有了这些改进,可靠和高质量的视频传输仍然带来了一些挑战,例如如何处理大量异构设备,以及如何更好地利用资源丰富的边缘、雾和云计算源来满足用户的需求。为了克服这些问题,本研究提出了一种多层视频传输架构,该架构依赖于多种技术,如多接入边缘计算(MEC)、5G切片和微服务放置/链。此外,为了评估所提出的想法,设计,实现了多层架构的实验概念验证测试平台,并使用现实世界的工具和实际视频序列进行了评估。研究结果支持了多层视频传输系统的可行性,并能极大地造福终端用户。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multi-tier Edge-to-Cloud Architecture for Adaptive Video Delivery
In the last few years, there has been a rapid proliferation of a wide range of real-time video services and applications. These technologies flood the wireless systems with video content on a daily basis. As a result of this sharp increase in video traffic, the prospect of errors due to network interference and congestion rises. Incidentally, the adoption of the 5th generation of wireless systems (5G) will allow this growth to be even greater due to its high bandwidth capacity and low latency. However, even with these improvements on the wireless capabilities, a reliable and high-quality video transmission still imposes several challenges, such as how to handle a large number of heterogeneous devices and how to better use the resource-richer Edge, Fog, and Cloud computing sources to meet the user's requirements. To overcome these issues, this work proposes a multi-tier video delivery architecture relying upon several technologies such as Multi-access Edge computing (MEC), 5G slices, and microservice placement/chaining. Furthermore, to assess the proposed idea an experimental proof-of-concept testbed of the multi-tier architecture was designed, implemented, and evaluated using real-world tools and actual video sequences. The results obtained supported our claim that a multi-tier video delivery system is feasible and can greatly benefit the end-users.
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