ANALYSIS OF DISTORTION IN A MEMORYLESS BANDPASS NONLINEARITY

In this paper we study linear models for some nonlinear systems with random Gaussian input signals. The model consists of a linear deterministic gain plus an additive random distortion. The model is used for some typical nonlinearities in a digital communication link. The validity of the model in comparison with the most commonly used model for a scalar quantizer is also studied. As an example of the application of the model we will look at the performance of an OFDM system with nonlinearity. I