The NDIC Algorithm of HPA Nonlinearity on MU-Massive MIMO System Performance

摘要

In this paper, we investigate the performance in terms of BER of the impact of the nonlinearity of High Power Amplifier (HPA) on the Multi User-massive Multiple Input Multiple Output (MU- massive MIMO) over Rayleigh fading channel. Thus, we propose a nonlinear distortion iterative cancellation (NDIC) algorithm based MMSE and AMP at the receiver level, in order to estimate and mitigate jointly a nonlinear distortions and the channel noise. Numerical results are provided that the NDIC method can efficiently compensate the nonlinear distortion even after first iteration.