Experimental Analysis of A-RoF Based Optical Communication System for 6G O-RAN Downlink

This paper explores recent advancements in optical communication for sixth generation (6G) networks, focusing on the proposed architecture, Open Radio Access Network (O-RAN) specifications, and Radio over Fiber (RoF) systems. Experimental evaluation of 6G Analog RoF, utilizing 60 GHz and 28 GHz carriers over 10 km single mode fiber, demonstrates the efficacy of Digital Pre-Distortion (DPD) linearization in reducing Error Vector Magnitude (EVM). Despite the observed rise in EVM with increased bandwidth, slight performance improvements are facilitated by DPD. This underscores the significance of ongoing advancements in mitigating challenges and harnessing the full potential of 6G Analog RoF (A-RoF) technology for upcoming O-RAN. These developments are poised to transform communication networks, ensuring enhanced speed, reliability, and efficiency to meet the dynamic demands of the digital landscape in the upcoming 6G era and beyond.