On the inclusion of channel's time dependence in a hidden Markov model for blind channel estimation
Document typeConference report
PublisherBOB WERNER IEEE COMPUTER SOCIETY PRESS
Rights accessOpen Access
We introduce several modifications to the Baum&Welch (BW) formulas used to reestimate the parameters of a hidden Markov model (HMM). The estimated parameter is the channel impulse response (CIR) of a communication system which is known to be time-varying. With these modifications, channel tracking properties of a BW-based algorithm are improved. The resulting algorithm is tested in a specific mobile radio environment (the GSM system), exhibiting good performance at expenses of higher computational complexity.
CitationAnton, C., Fonollosa, José A. R., R. Fonollosa, J. On the inclusion of channel's time dependence in a hidden Markov model for blind channel estimation. A: IEEE SIGNAL PROCESSING WORKSHOP ON STATISTICAL SIGNAL AND ARRAY PROCESSING. "?". BOB WERNER IEEE COMPUTER SOCIETY PRESS, 1996, p. 164-167.