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Theses

Cloudification and Slicing in 5G Radio Access Network

Abstract : Over the past few decades, the continuing growth of network statistics requires a constantly evolving technology. Therefore, a natural question arises in our minds: what will 5G be? To answer this question, the 5G architecture must be designed with a certain level of flexibility through the integration of softwarization and virtualization principles. Therefore, we can see that 5G will provide a paradigm shift beyond radio access technology in order to establish an agile and sophisticated communication system. The network can be used efficiently and independently by creating multiple logically separated spaces, called network slices. In addition, each logical network can deploy its network functions in a flexible cloud environment. To this end, the goal of this thesis is to study these two techniques: (a) Cloud-RAN and (b) RAN splitting. In the first part, our focus is on the C-RAN concept, in which monolithic base stations are replaced by (1) distributed radio elements and (2) centralized pools for baseband processing units. The C-RAN notion is still confronted with stringent capacity and latency requirements of the fronthaul interface that connects the distributed remote radio unit to the centralized baseband processing unit. In the second part, we focus on RAN cutting not only to allow different levels of isolation and sharing at each slice of network, but also to customize the control plane, user plane and control logic. Therefore, we provide a flexible runtime environment for the "RAN Runtime" slicing system to host service instances on each of the underlying RAN modules.
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https://tel.archives-ouvertes.fr/tel-02501244
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Submitted on : Friday, March 6, 2020 - 4:30:11 PM
Last modification on : Thursday, June 4, 2020 - 6:14:42 PM
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  • HAL Id : tel-02501244, version 1

Citation

Chia-Yu Chang. Cloudification and Slicing in 5G Radio Access Network. Networking and Internet Architecture [cs.NI]. Sorbonne Université, 2018. English. ⟨NNT : 2018SORUS293⟩. ⟨tel-02501244⟩

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