Implementation of nonlinear distortion minimization technique for RoF link using polynomial based predistorter
Radio over Fiber is one most promising approaches for data communication but it is suffer from the nonlinear distortions. There are number of techniques like feedback, feed forward and predistortion etc. which have been studied to mitigate the problem of non-linear distortion in the field of radio over fiber communication. This paper describes memory polynomial (MPM), envelope memory polynomial (EMPM) predistorter along with the implementation steps to carry out the simulation study on OptiSystem 13.0. As per author's best knowledge, this is the first time result, obtained for MPM & EMPM based predistorter for RoF link using MATLAB-OptiSystem co-simulation. The paper concludes with the suggestions of development of new technique named hybrid memory envelope polynomial (HEMPM) which can be implemented by amalgamation of MPM and EMPM. The requisite simulation steps have also been suggested. The authors expect that the suggested technique could improve the results in terms of RoF quality parameters like power spectral density (PSD), Adjacent Channel Power Ratio (ACPR) etc.