PAPR Mitigation in Converged Radio over Fiber Access PON Networks

This project addresses the technical challenge of high peak-to-average power ratio (PAPR) in convergent radio-over-fiber (RoF) and passive optical network (PON) access systems. As networks evolve toward 6G, the integration of multi-carrier signals like OFDM-IM and OTSM alongside 4G and 5G technologies causes non-linear distortions in optical amplifiers and lasers, degrading signal quality and increasing the bit error rate (BER). The research aims to evaluate and optimize PAPR mitigation techniques, including adaptive clipping, peak insertion, and frequency/phase modulation (FM/PM). Unlike traditional approaches, this study focuses on a realistic intensity modulation and direct detection (IM/DD) scenario. The project combines computational simulations using Matlab and OptSim with experimental validation in a laboratory testbed. Expected outcomes include the optimization of spectral efficiency and reduction of BER, providing practical data for the efficient deployment of next-generation telecommunications infrastructure, benefiting both the scientific community and network operators.<br/><br/><b>Goal</b>: <br/>Evaluate PAPR reduction techniques in radio-over-fiber (RoF) systems supporting the convergence of 4G, 5G, and 6G mobile signals in PON access networks. The goal is to minimize non-linear distortion in amplifiers and lasers to improve system efficiency.<br/><br/><b>Research lines</b>: <br/>Telecommunications and information technologies