An OAI Based Cybertwin Networks Platform

Modern wireless networks must support numerous connected devices with diverse quality of service (QoS) and security requirements, posing challenges for traditional architectures. Cybertwin technology offers a novel approach by leveraging digital proxies to explore the potential of bridging the physical and virtual worlds. This paper introduces the programmable and flexible platform for cybertwin networks (PFPCTN), implemented using the open-source OpenAirInterface (OAI) framework. The platform integrates multiple universal software radio peripheral (USRP) devices and a containerized core network to create a software-defined, multi-vendor experimental environment, providing essential infrastructure for exploring cybertwin functionalities. Laboratory experiments demonstrate stable operation under moderate traffic, supporting up to eight cybertwin-assisted user entities (CTs), achieving over 100 Mbit/s downlink throughput on a 40 MHz bandwidth, and enabling smooth 1080P video playback at extended distances. To the best of our knowledge, this is the first fully programmable, open-source 5G testbed built on software-defined radio, integrating preliminary cybertwin interfaces and providing a foundation for future in-depth studies. Future plans include outdoor deployments, higher frequency bands, and AI-driven experimentation.