An Open Source Digital Twin Framework for O-RAN

Open radio access network (O-RAN) offers interoperability and innovation by disaggregating traditional monolithic architecture. However, open networks' complexity and dynamic nature pose significant optimization challenges. In this context, digital twins are crucial as they enable real-time monitoring, simulation, and optimization, leading to substantial performance improvements in the O-RAN network. This paper presents a framework that integrates the ns-3 network simulator, the Open Source Community (OSC) RAN Intelligent Controller (RIC), and xApps within O-RAN digital twins. By bridging the gap between simulation and real-world deployment, this research underscores the role of digital twins in the O-RAN ecosystem for developing and testing xApps. These digital twins enhance network performance optimization through real-time data analysis and simulation, enabling operators to seamlessly transition from simulated environments to actual telecom infrastructure. This integration not only promotes the programmability and disaggregation of network functions but also drives innovation in network management and control, leading to more intelligent and responsive wireless networks.