Adaptive channel equalization using context trees


The maximum likelihood sequence estimator is the optimal receiver for the inter-symbol interference (ISI) channel with additive white noise. A receiver is demonstrated that estimates sequence likelihood using a variable order Markov model constructed from a crudely quantized training sequence. Receiver performance is relatively unaffected by heavy-tailed noise that can undermine the performance of Gaussian based algorithms such as decision feedback equalization with gradient based (LMS) adaptation.

DOI: 10.1109/ICASSP.1997.598924

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@inproceedings{Kelly1997AdaptiveCE, title={Adaptive channel equalization using context trees}, author={Owen E. Kelly and Don H. Johnson}, booktitle={ICASSP}, year={1997} }