Bit-patterned media with written-in errors: Modeling, detection, and theoretical limits

被引：41

作者：

Hu, Jun ^{[1
]}

Duman, Tolga M.

Kurtas, Erozan M.

Erden, M. Fatih

机构：

[1] Arizona State Univ, Dept Elect Engn, Tempe, AZ 85287 USA

[2] Seagate Technol, Pittsburgh, PA 15222 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2007年 / 43卷 / 08期

关键词：

achievable information rates; bit-patterned media; intersymbol interference (ISI); maximum a posteriori (MAP) detection; written-in errors;

D O I：

10.1109/TMAG.2007.898307

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report a study of bit-patterned media recording channels containing written-in errors. From a signal processing point of view, we consider an abstract model for the overall recording channel, incorporating errors caused by timing and write ability. Based on the resulting channel model, we develop various trellis structures, and propose several detection algorithms that can be used to recover the recorded data. Furthermore, we investigate achievable information rates for patterned media recording systems with different levels of written-in error probability, providing an information theoretical performance assessment for such systems.

引用

页码：3517 / 3524

页数：8

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