An Open, Programmable, Multi-vendor 5G O-RAN Testbed with NVIDIA ARC and OpenAirInterface

X5G is the first 8-node network deployment of the NVIDIA Aerial RAN CoLab Over-The-Air (ARC-OTA), with the Aerial SDK for the PHY layer, accelerated on Graphics Processing Unit (GPU), and through its integration with higher layers from the OpenAirInterface (OAI) open-source project through the Small Cell Forum Functional Application Platform Interface (FAPI).