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Communication Dans Un Congrès Année : 2021

FlexRIC: An SDK for Next-Generation SD-RANs

Robert Schmidt
  • Fonction : Auteur
  • PersonId : 1265397
Mikel Irazabal
  • Fonction : Auteur
  • PersonId : 1265398
Navid Nikaein
  • Fonction : Auteur
  • PersonId : 868226

Résumé

Unlike previous mobile networks, 5G New Radio (5G-NR) provides unprecedented exibility in the radio access network (RAN) to support diverse use cases in a multi-tenant environment. In this context, the need for programmability and control through software-de ned radio access networking (SD-RAN) is well established. While the underlying RAN is designed to be ultra exible and lean, existing SD-RAN controllers are either not exible to address all use cases or use a one-size-ts-all approach. In this paper, we present FlexRIC, a exible and e cient software development kit (SDK) that enables to build specialized serviceoriented controllers. FlexRIC has a modular architecture with minimal footprint and is designed with extensibility in mind. We validate the SDK building concrete implementations of two specialized controllers for state-of-the-art 5G use cases: (1) a recursive RAN controller that virtualizes the network to allow multiple tenants to concurrently control and operate their services in a shared infrastructure over the heterogeneous landscape of 5G networks, and (2) an SD-RAN controller providing programmability for multi-radio access technology (RAT) RAN slicing, and ow-based tra c control targeting low-latency communications. The results reveal that FlexRIC reduces the round-trip time by two while incurring 83 % less CPU compared with O-RAN's reference implementation, and uses 10x less CPU and one third of the memory when compared to FlexRAN. Such performance is required to unleash the potential of emerging 5G use cases. CCS CONCEPTS • Networks → Mobile networks; Programmable networks.
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Dates et versions

hal-04143213 , version 1 (27-06-2023)

Identifiants

Citer

Robert Schmidt, Mikel Irazabal, Navid Nikaein. FlexRIC: An SDK for Next-Generation SD-RANs. CoNEXT 2021, 17th International Conference on emerging Networking EXperiments and Technologies, ACM, Dec 2021, Munich (virtual), Germany. pp.411-425, ⟨10.1145/3485983.3494870⟩. ⟨hal-04143213⟩

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