An iterative method for non-linear channel equalization in OFDM systems

In this paper, we present an algorithm for the nonlinear equalisation in OFDM transmission systems. We suggest to apply a disjoint iterative method for the linear multipath channel estimation and the nonlinearly distorted transmitted data recovery. A simple technique is proposed for the channel re-estimation on the basis of the recovered transmitted data. For the nonlinear noise cancellation, we use a procedure of the nonlinear noise estimation at the receiver. The presented simulation results confirm the efficiency of the proposed algorithm.