On the error probability performance of non-linearly distorted OFDM signals

In this paper, we examine the error probability behavior on non-linearly distorted orthogonal frequency division multiplexing (OFDM) signals with different numbers of subchannels. Specifically, we show that for OFDM systems in the presence of non-linearities increasing the number of subchannels does not necessarily result in degradation of the error rate. We also show that the behavior of the error probability of non-linearly distorted OFDM signals is related to the properties of the intermodulation distortion (IMD) of such signals.