RT Journal Article T1 Integrated Microwave Photonics Coherent Processor for Massive-MIMO Systems in Wireless Communications A1 Martínez-Carrasco Romero, Pablo A1 Rausell-Campo, José Roberto A1 Pérez-Galacho, Diego A1 Li, Xu A1 Qing, Ting A1 Wang, Tiangxiang A1 Pérez-López, Daniel K1 Fotónica K1 Redes inalámbricas AB Massive-MIMO systems can achieve high capacities and data rates by increasing the number of operational antennas in the base station. As more antenna elements are introduced, the complexity of the signal processing operations increases accordingly and current electronic processors struggle to reach those requirements. To overcome these hurdles, we propose a novel theory to process the RF signals in the optical domain. We experimentally demonstrate the capabilities of theory using a non-integrated Dual Parallel Modulator as a 2×2 optical matrix multiplier, recovering satisfactorily previously mixed RF signals modulated following the standards in 5G communications. Finally, we propose an integrated photonic architecture based on a core of Mach Zehnder Interferometers to physically process the information. Together with the optical core, we proposed the integration of RF modulators, microwave photonic filters and high-speed photodetectors. We present simulations on the expected performance of the circuit and analyze the impact of fabrication errors. YR 2023 FD 2023-04-05 LK https://hdl.handle.net/10630/33444 UL https://hdl.handle.net/10630/33444 LA eng NO This work was supported by the UPV-Huawei Wireless Joint Innovation Center Agreement under Project YBN2020095120 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 19 ene 2026