Equalization and detection in storage channels

Cited 5 time in webofscience Cited 7 time in scopus
  • Hit : 313
  • Download : 0
In this work, a model for digital magnetic recording on thin-film media is developed, and the performances of several detector/run-length-limited code combinations are compared under different densities, media noise, offtrack interference, and channel mismatch conditions. The study is based on computer simulations using an experimentally extracted transition response of a magnetoresistive read head. The detection algorithms considered include the partial response maximum likelihood detectors, decision feedback equalizer (DFE), and fixed-delay tree search with decision feedback (FDTS/DF) detector. It was found that the DFE with a (0, k) run-length-limited (RLL) code and the FDTS/DF with a (1, 7) RLL code show the least bit error rate degradation, as the user density increases beyond 2.5 bits/PW50. The PRML and DFE suffer less from offtrack interference. The (0, fi) coded DFE and the (1,7) coded EPRML and FDTS/DF channels are relatively robust under PW50 mismatch. At a user density of 2.5, FDTS/DF (1, 7) and DFE; (0, k) are found to yield the best bit error performance under varying intensities of white Gaussian noise and media noise.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
1996-09
Language
English
Article Type
Article
Keywords

DECISION-FEEDBACK EQUALIZATION; PERFORMANCE; DENSITY

Citation

IEEE TRANSACTIONS ON MAGNETICS, v.32, no.5, pp.5206 - 5217

ISSN
0018-9464
DOI
10.1109/20.538623
URI
http://hdl.handle.net/10203/75639
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 5 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0