Performance evaluation of LDPC coding and iterative decoding system in TDMR R/W channel with head skew

Author

Suzutou, R. ; Nakamura, Y. ; Osawa, H. ; Okamoto, Y. ; Kanai, Y. ; Muraoka, H.

Author_Institution

Grad. Sch. of Sci. & Eng., Ehime Univ., Matsuyama, Japan

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

Two-dimensional magnetic recording (TDMR) by shingled magnetic recording (SMR) draws attention as a next generation technology to increase recording densities in hard disk drive (HDD) [1]. TDMR exploits two-dimensional signal processing using the waveforms reproduced by array head from the intended and adjacent tracks to mitigate the impact of intertrack interference (ITI) [2]. However array head has the issue on the degradation of bit error rate (BER) performance due to head skew [3], [4]. In this study, we evaluate the BER performance of TDMR R/W channel with head skew under the specification of 4 Tbit/inch² employing low-density parity check (LDPC) coding and iterative decoding system using a two-dimensional finite impulse response (TD-FIR) filter by computer simulation.

Keywords

FIR filters; decoding; error statistics; iterative methods; magnetic heads; magnetic recording; parity check codes; performance evaluation; BER performance; LDPC coding; TDMR R/W channel; computer simulation; head skew; iterative decoding system; low-density parity check coding; performance evaluation; shingled magnetic recording; two-dimensional finite impulse response filter; two-dimensional magnetic recording; Arrays; Bit error rate; Decoding; Encoding; Magnetic heads; Magnetic recording; Parity check codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7157692

Filename

7157692