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首页> 外文期刊>Annales des Telecommunications >Algorithms for the design of 5G networks with VNF-based Reusable Functional Blocks
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Algorithms for the design of 5G networks with VNF-based Reusable Functional Blocks

机译：基于VNF的可重用功能块设计5G网络的算法

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摘要

We face the problem of designing a 5G network composed of Virtual Network Function (VNF)-based entities, called Reusable Functional Blocks (RFBs). RFBs provide a high level of flexibility and scalability, which are recognized as core functions for the deployment of the forthcoming 5G technology. Moreover, the RFBs can be run on different HardWare (HW) and SoftWare (SW) execution environments located in 5G nodes, in line with the current trend of network softwarization. After overviewing the considered RFB-based 5G network architecture, we formulate the problem of minimizing the total costs of a 5G network composed of RFBs and physical 5G nodes. Since the presented problem is NP-Hard, we derive two algorithms, called SFDA and 5G-PCDA, to tackle it. We then consider a set of scenarios located in the city of San Francisco, where the positions of the users and the set of candidate sites to host 5G nodes have been derived from the WeFi app. Our results clearly show the trade-offs that emerge between (i) the total costs incurred by the installation of the 5G equipment, (ii) the percentage of users that are served, and (iii) the minimum downlink traffic provided to the users.
机译：我们面临设计由虚拟网络功能（VNF）的5G网络组成的5G网络，称为可重用功能块（RFB）。 RFB提供了高水平的灵活性和可伸缩性，该可扩展性被认为是部署即将到来的5G技术的核心功能。此外，RFB可以在位于5G节点中的不同硬件（HW）和软件（SW）执行环境中运行，符合网络软化的当前趋势。在概述所考虑的基于RFB的5G网络架构之后，我们制定最小化由RFB和物理5G节点组成的5G网络的总成本的问题。由于所呈现的问题是NP-Hard，我们推出了两个算法，名为SFDA和5G-PCDA，以解决它。然后，我们考虑位于旧金山市的一系列场景，其中用户和候选站点的候选站点的位置来自WEFI应用程序。我们的结果清楚地显示了（i）介于安装5G设备的总费用之间的权衡，（ii）服务的用户的百分比和（iii）向用户提供的最低下行链路流量。

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