Simple series form formula of BER performance for DBPSK/OFDM signals in time selective nonlinear fading channels

This paper proposes a simple series form formula of the bit error rate (BER) for DBPSK/OFDM signals under time selective nonlinear fading channels. The proposed approach derives the theoretical BER in the presence of non-linear distortion and time selective fading effects. Since the BER is represented by the simple series form formula, the proposed approach frees us from the time-consuming computer simulations. The validity of the proposed approach is confirmed by the agreement with the computer simulation results under various kinds of system parameters such as the input back-off (IBO) and the normalized maximum Doppler frequency.