Channel Estimation with Improved OFDM

ABSTRACT:.In this paper channel estimation for orthogonal frequency division multiplexing (OFDM) is presented. This channel estimation employs two training symbol in combination with polynomial fitting thus to get accurate estimation result. Channel estimation is mainly performed by sending pilot from the transmitter and measuring the pilot at the receiver side. A sufficient amount of pilot needs to be transmitted in order for the receiver to obtain a reasonably accurate estimate of the channel response. Simulation result is also represented. Simulation makes the study of OFDM processing very easy. By simply taking the values of SNR, we can easily observe.