Enhancing 5G O-RAN Communication Efficiency Through AI-Based Latency Forecasting
It addresses latency issues in 5G O-RAN for network operators, but is incremental as it builds on existing ML methods with hardware validation.
This paper tackled the challenge of maintaining low latency in 5G O-RAN by developing an AI-based latency forecasting system integrated into a functional prototype, achieving a loss metric below 0.04 in experiments.
The increasing complexity and dynamic nature of 5G open radio access networks (O-RAN) pose significant challenges to maintaining low latency, high throughput, and resource efficiency. While existing methods leverage machine learning for latency prediction and resource management, they often lack real-world scalability and hardware validation. This paper addresses these limitations by presenting an artificial intelligence-driven latency forecasting system integrated into a functional O-RAN prototype. The system uses a bidirectional long short-term memory model to predict latency in real time within a scalable, open-source framework built with FlexRIC. Experimental results demonstrate the model's efficacy, achieving a loss metric below 0.04, thus validating its applicability in dynamic 5G environments.