An Orthogonal Frequency Division Multiplexing (OFDM) receiver comprises: a channel estimator receiving a signal that includes a plurality of symbols, each of the symbols including a plurality of pilots and a plurality of data subcarriers, wherein each symbol further includes at least one pilot subcarrier, the estimator using a first channel response estimate of the at least one pilot subcarrier in a first symbol to select a first weight matrix from a plurality of pre-generated weight matrices, and generating channel estimation information for data subcarriers in the first symbol using the selected first weight matrix.