The Analysis of the High Power Amplifier Distortion on the MIMO-GFDM System

Abstract

Generalized Frequency Division Multiplexing (GFDM) is a flexible waveform possible choice for the next communication system that offers advantages such as low out-of-band (OOB) and high spectral efficiency. The High Power Amplifier (HPA) is operated close to the saturation region for increased efficiency. However, working in that area will result in nonlinear distortion. We investigated the effect of HPA in the GFDM Multiple Input Multiple Output (MIMO) system. The model used is the Rapp Model. In this paper, the Bit Error Rate (BER) of the MIMO-GFDM system with HPA through the Additive White Gaussian Noise (AWGN) channel will be explored. The output of the simulation shows that the nonlinear distortion effect will cause the signal constellation to propagate. Besides, there was an increase in the BER value for the HPA system.