Title :
A two-path tree search algorithm for use with DFE
Author :
Wang, Xiaodong ; Spencer, Richard R.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA
fDate :
6/1/2000 12:00:00 AM
Abstract :
The two-path tree search is a detection algorithm that improves the performance of standard decision-feedback equalizer detectors by examining two likely paths through the decision tree. The method achieves about 1-dB improvement over standard decision-feedback equalization for typical magnetic recording channels used in hard disk drives. The implementation complexity is modest and is compared with other improved decision-feedback structures
Keywords :
decision feedback equalisers; disc drives; magnetic recording; signal detection; tree searching; DFE; decision tree; decision-feedback equalizer detectors; decision-feedback structures; detection algorithm; hard disk drives; implementation complexity; magnetic recording channels; two-path tree search algorithm; Decision feedback equalizers; Detection algorithms; Detectors; Filters; Intersymbol interference; Iron; Magnetic recording; Maximum likelihood estimation; Polynomials; Signal to noise ratio;
Journal_Title :
Communications, IEEE Transactions on
