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Algorithms for the design of 5G networks with VNF-based Reusable Functional Blocks

  • ``CfP: Techniques for Smart and Secure 5G Softwarized Networks''
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Abstract

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.

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Notes

  1. The same analysis was performed on the BBU and MEC RFBs, yielding to the same conclusions (not reported here due to lack of space).

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Funding

This work has received funding from the Horizon 2020 EU project SUPERFLUIDITY (grant agreement no. 671566).

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Correspondence to Luca Chiaraviglio.

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Chiaraviglio, L., D’Andreagiovanni, F., Rossetti, S. et al. Algorithms for the design of 5G networks with VNF-based Reusable Functional Blocks. Ann. Telecommun. 74, 559–574 (2019). https://doi.org/10.1007/s12243-019-00722-w

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  • DOI: https://doi.org/10.1007/s12243-019-00722-w

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