A New Method for Channel Estimation in Orthogonal Frequency Division Multiplexing (OFDM) Systems Using Reduced Pilots

In this paper, a new method for channel estimation is proposed based on a combination of pilots and pseudo pilots in OFDM system. In the suggested method, only half of the minimum necessary pilots that are required to obtain the minimum mean square error (MSE) of least square (LS) channel estimation is being used with the same efficiency of conventional methods.