60717 20240122154813.0 doi 10.1364/OE.25.003694 sideral 98181 ART-2017-98181 eng Mateo, C. (orcid)0000-0003-1021-3993 Radio-over-fiber linearization with optimized genetic algorithm CPWL model 2017 Access copy available to the general public Unrestricted This article proposes an optimized version of a canonical piece-wise-linear (CPWL) digital predistorter in order to enhance the linearity of a radio-over-fiber (RoF) LTE mobile fronthaul. In this work, we propose a threshold allocation optimization process carried out by a genetic algorithm (GA) in order to optimize the CPWL model (GA-CPWL). Firstly, experiments show how the CPWL model outperforms the classical memory polynomial DPD in an intensity modulation/direct detection (IM/DD) RoF link. Then, the GA-CPWL predistorter is compared with the CPWL model in several scenarios, in order to verify that the proposed DPD offers better performance in different optical transmission conditions. Experimental results reveal that with a proper threshold allocation, the GA-CPWL predistorter offers very promising outcomes. info:eu-repo/grantAgreement/ES/DGA/GCM-T97 info:eu-repo/grantAgreement/ES/MINECO/TEC2014-58341-C4-2-R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.356 2017 OPTICS 19 / 93 = 0.204 2017 Q1 T1 1.519 2017 Atomic and Molecular Physics, and Optics 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Carro, P.L. Universidad de Zaragoza (orcid)0000-0001-5849-5198 García-Dúcar, P. Universidad de Zaragoza (orcid)0000-0002-7452-446X Mingo, J. de Universidad de Zaragoza (orcid)0000-0002-2796-5916 Salinas, I. Universidad de Zaragoza (orcid)0000-0002-6144-7928 5008 800 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Teoría Señal y Comunicac. 25, 4 (2017), 3694-3708 Opt. express OPTICS EXPRESS 1094-4087 4393145 http://zaguan.unizar.es/record/60717/files/texto_completo.pdf Versión publicada 94038 http://zaguan.unizar.es/record/60717/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:60717 articulos driver 2024-01-22-15:31:31 ARTICLE