Fifth-Generationnew Radio Fiber-Wirelesssystem For Long-Reach And Enhanced Mobile Broadband Scenarios

This work reports the implementation of a fifth-generation (5G) new radio (NR) fiber-wireless (FiWi) system for long-reach and enhanced mobile broadband scenarios. The proposed 5G NR FiWi system includes a 12.5 km optical distribution network based on radio over fiber technology, a 7.5 km supercell in a rural area using the 700 MHz band, digital pre-distortion (DPD), equalization and a Gbit/s indoor femtocell operating in the 26 GHz band. The 5G NR standard has been applied and DPD and equalization have been efficiently employed to enhance the system performance in mm-waves. Furthermore, experimental results demonstrate successful implementations of a femtocell with 4 Gbit/s throughput and only 4.6% error vector magnitude, as well as a large cell with 33 Mbit/s throughput and 7.51-km reach.