Capacity analysis for Gaussian channels with memoryless nonlinear hardware

This paper presents the analysis of the impact of circuit nonlinearities on the transmission rate of a communication system. We consider a general transmission model that includes transmitter- and receiver-side nonlinearities, environmental thermal noise and receiver chain noise. Using this model we establish lower and upper bounds for the capacity of nonlinear additive white Gaussian noise channels in various thermal noise and receiver noise regimes.