Impulsive noise effects on DWT- and WPT-OFDM versus FFT-OFDM

We demonstrate a performance study on waveletbased OFDM, particularly using DWT and WPT-OFDM as substitutions for Fourier- based OFDM with the focus on impulse noise effects. We begin by constructing the models of the inverse and forward transforms. We explain in detail each model and study the BER performance in two scenarios when varying the Poisson recurrence parameter a from small to large. The waveletbased OFDM (DWT-OFDM and WPT-OFDM) are assumed to have orthonormal bases and perfect reconstruction properties. Results show that a large value of a limits the impact of impulsive noise on the system.We also found that the WPT-OFDM platform is superior in BER to others.