Soft Feedback Equalization for Patterned Media Storage

• Published in: IEEE transactions on magnetics Vol. 44; no. 11; pp. 3793 - 3796
• Main Author: Keskinoz, M.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.11.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Bit error rate; Cross-disciplinary physics: materials science; rheology; Crosstalk; Decision feedback equalizers; Degradation; Exact sciences and technology; Holographic optical components; Inter-symbol interference; Intersymbol interference; Iterative decoding; Magnetic noise; Magnetic recording; Magnetic separation; Magnetism; Materials science; Other topics in materials science; patterned media; Physics; two-dimensional equalization/detection; Storage; two-dimensional equalization/detection; Inter-symbol interference; Magnetic properties; patterned media
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2008.2002378

Patterned media storage (PMS) is one of the promising technologies to overcome the limitations of the conventional magnetic recording. For a high areal density PMS, both inter-track interference (ITI) and inter-symbol interference (ISI), and noise severely degrade the bit error rate (BER) performance of the system. In this work, we develop soft feedback equalization (SFE) to mitigate these adverse effects. We evaluate the performance of SFE by using numerical experiments under different amount of 2D-ISI and noise. Simulation results suggest that SFE is a good candidate for ultra-high capacity PMS.