Performance analysis of the Wavelet-OFDM new scheme in AWGN channel

Orthogonal Frequency Division Multiplexing (OFDM) is a special form of multi-carrier transmission that uses the policy of divide and rule. In this scheme, a large number of orthogonal, overlapping, narrow band sub-channels (subcarriers) are transmitted in parallel and divide the available transmission bandwidth. This technique is originally based on the Fast Fourier Transform of the information data. In order to improve the performance of the OFDM and overcome some limitations, an alternative OFDM approach based on the Wavelet Transform is proposed. In this paper, we study the performance of such systems in Additive White Gaussian Channel (AWGN). MATLAB simulations are realized and performance comparisons are presented.