Advanced service data provisioning in ROF-based mobile backhauls/fronthauls

TL;DR

This paper proposes a novel cost-effective method for real-time monitoring of QoS metrics in 5G networks using a specialized optical device that functions as both transmitter and receiver, validated through a proof-of-concept experiment.

Contribution

It introduces a new optical device based on VCSEL technology for simultaneous transmission and reception in 5G backhaul/fronthaul networks, enhancing efficiency and cost-effectiveness.

Findings

Successful proof-of-concept experiment with high-speed digital signal transmission

Demonstrated feasibility of the integrated optical device for real-time QoS monitoring

Confirmed efficiency of the proposed approach in 5G network scenarios

Abstract

A new cost-efficient concept to realize a real-time monitoring of quality-of-service metrics and other service data in 5G and beyond access network using a separate return channel based on a vertical cavity surface emitting laser in the optical injection locked mode that simultaneously operates as an optical transmitter and as a resonant cavity enhanced photodetector, is proposed and discussed. The feasibility and efficiency of the proposed approach are confirmed by a proof-of-concept experiment when optically transceiving high-speed digital signal with multi-position quadrature amplitude modulation of a radio-frequency carrier.