An Overview of Digital Predistortion Solutions for Hybrid Beamforming Mimo Transmitters

U ovom radu dat je pregled postojećih rešenja digitalne predistorzije za hybrid bemforming MIMO (multiple-input multiple-output) predajnike. Pored opisa samih modela, izložena je i uporedna analiza modela u pogledu performansi. Takođe, ukazano je na neke od mogućih problema pri primeni predloženih tehnika digitalne predistorzije u budućim širokopojasnim sistemima.This paper provides an overview of existing digital predistortion solutions for hybrid bemforming MIMO (multiple-input multiple-output) transmitters. In addition to the description of the models, their comparative analysis, in terms of model performance, is also presented. Some of the possible problems in the application of the proposed digital predistortion techniques in future broadband systems have also been pointed out.