Performance and improvement of the finite order compensation in a non-linear DVB-S2 communication channel

High order modulations defined in the DVB-S2 standard are very sensitive to the non-linear interference induced by the power amplifier combined with the filters present in the channel. Several methods have been proposed to mitigate this interference. The finite order compensation, or order p compensation, is an analytical method to remove non-linear interference. However, it shows poor performance in case of high interference channel. We propose therefore a modification of the finite order compensation in order to minimize the mean square error between the initial input symbols and the received symbols.