Channel estimation for OFDM systems based on wavelets network interpolation algorithm

For pilot symbol aided orthogonal frequency division multiplexing (OFDM) systems, wavelets network interpolation channel estimators are proposed. Compared to conventional methods, wavelets network interpolation channel estimator can guarantee the high transmission rate and lower bit error rates (BER). Computer simulation demonstrates that the proposed channel estimation methods exhibit an improved performance compared to the conventional linear channel estimation methods and are robust to fading rate, especially in fast fading channels.