Diseño e implementación de esquemas de modulación QAM-OFDM para sistemas de comunicación RoF utilizando OptiSystem .

Abstract

The present work consists of carrying out the design and implementation of a radio communication system over fiber (RoF) through three simulation scenarios of quadrature amplitude modulation (QAM) schemes combined with orthogonal frequency division multiplexing (OFDM). ) using the OptiSystem environment. In order to meet the main objective of this work, different robust simulation environments had to be analyzed, such as MatLab / Simulink, LabVIEW, Opnet Modeler, OMNeT ++ and OptiSystem. The latter was chosen as the most suitable when designing a hybrid optical system and for its very user-friendly graphical environment to implement optical networks. Before designing the RoF communication system, the theoretical foundations of these systems were described. For the design of the RoF communication system, three QAM optical modulation schemes (4QAM, 16QAM and 64QAM) were used with the variation of subcarriers and combined with the OFDM system in wireless access.