Distance Enhancing Constraints for Noise Predictive Maximum Likelihood Detectors
نویسنده
چکیده
|Using performance analysis of Reduced State Sequence Estimators (RSSE), we characterize dominant error events for a Noise Predictive Maximum Likelihood (NPML) detector. The error event characterization may be used to determine distance enhancing constraints that improve the reliability of NPML/RSSE detection. An example of a constraint that provides approximately :8 dB asymptotic coding gain for an NPML detector operating at a user bit density of 2:54 is illustrated.
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