Wavelet based OFDM system over flat fading channel using NLMS equalization

Wavelet transformation based OFDM has took place in wireless communication due to its time-frequency localization, bit error rate improvement, interference minimization, improvement in bandwidth efficiency with respect to conventional OFDM. DWT OFDM don't need of cyclic prefix (CP). This paper presents that bit error ratio is reduces much better due to NLMS algorithm based channel estimation than flat fading that can be modeled by Rayleigh and Rician in which later gives the improved results.