Maximum Likelihood Slow Frequency-Selective Fading Channel Estimation Using Frequency Domain Approach
Journal : Number: CSHCN TR 2000-13
December 31, 2000
Traditional works assumed symbol period spaced delay-tapped line model and additive white Gaussian noise (AWGN). Because of pre-filtering in the receiver front end, if the sampling rate is larger than one sample per symbol or sampling epoch is unknown (i.e., timing information is not available), AWGN model is not valid anymore.