Title :
Perpendicular and longitudinal recording: a signal-processing and coding perspective
Author :
Cideciyan, Roy D. ; Eleftheriou, Evangelos ; Mittelholzer, Thomas
Author_Institution :
Zurich Res. Lab., IBM Res., Ruschlikon, Switzerland
fDate :
7/1/2002 12:00:00 AM
Abstract :
Equalization and noise prediction followed by sequence detection and postprocessing are studied for double-layer perpendicular recording channels that are corrupted by electronics and transition noise. The performance of various outer coding schemes, such as conventional Reed-Solomon codes with 8and 10-bit symbols and low-density parity check codes, is evaluated, and a signal-processing and coding perspective is presented for both longitudinal and perpendicular recording channels. Finally, the capacity of recording channels is characterized
Keywords :
Reed-Solomon codes; channel capacity; equalisers; magnetic recording; magnetic recording noise; perpendicular magnetic recording; signal detection; signal processing; Reed-Solomon code; channel capacity; coding; double-layer perpendicular recording channel; electronics noise; equalization; longitudinal recording; low-density parity check code; perpendicular recording; sequence detection; signal processing; transition noise; Communication channels; Detectors; Disk drives; Disk recording; Magnetic heads; Maximum likelihood detection; Parity check codes; Perpendicular magnetic recording; Polynomials; Signal processing;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.1017759
