On the equalization scheme for ZP-OFDM using MMSE criteria over deep fading channels

OFDM is a special technique of FDM. In OFDM carrier frequency differs from each other by integer multiples of base carrier frequency making the carrier being mutually orthogonal to each other. But OFDM suffers from the spectral null problem. On the other hand Zero-padded OFDM recovers the symbol but its complexity is high in equalizer. Finally in this paper the problem of spectral null and complexity is solved by means of DFT code. The simulation result has also been proven better by means of complexity when compared with ZP-OFDM Overlap and Add scheme.