Predistortion Performance Considering Peak to Average Power Ratio Reduction in OFDM Context
Some recent communication systems like DVB-T2 standard set up a PAPR reduction technique followed by a linearization's one. So in such a scenario, the performance of the linearization is influenced undoubtedly by the PAPR reduction method. In this paper, the authors revisit the EVM metric and evaluate a closed form regarding the performance of both the PAPR reduction technique and the linearization's one. They choose the predistortion as a linearization technique and define a predistortion error. Assuming that the baseband OFDM signal is characterized as a complex Gaussian process, they consider the three top categories of PAPR reduction methods presented in and they first study the distribution of the resulted signal.