Efficient PAPR Reduction Techniques and Performance of DWT-OFDM

Wideband digital communication can benefit from the effective wideband OFDM modulation technique, which is used for high-speed data requirement. Some important properties of OFDM are high bandwidth efficiency, robustness to channel fading, capability of handling strong echoes, and immunity to impulse response. High peak-to-average power ratio (PAPR) is the main disadvantage of OFDM, which restricts its use in communication systems. FFT is typically used to implement OFDM. Orthogonal wavelets are being used in recent research to switch from FFT-based OFDM to DWT-based OFDM in order to achieve high performance and high-speed integrated data. By incorporating DWT into OFDM, we can improve spectral efficiency and reduce bit error rates. This work is introduced to compare the performance of DWT-OFDM with traditional FFT-based OFDM examining the performance of PAPR. Additionally, it is suggested that effective PAPR reduction techniques maintain the adverse impacts induced within the allowable limits.