Performance evaluation of LDPC codes for patterned media

Author

Ntokas, I.T. ; Nutter, P.W. ; Middleton, B.K. ; Tjhai, C.J. ; Ahmed, M.Z.

Author_Institution

Sch. of Comput. Sci., Manchester Univ., UK

fYear

2005

fDate

4-8 April 2005

Firstpage

987

Lastpage

988

Abstract

This paper examines the application of low-density-parity-check (LDPC) codes to patterned media storage systems. An advanced model of the read channel that allows the investigation of data recovery techniques applicable to patterned media systems is developed. The paper also investigates what BER gain can be achieve by utilizing a soft-input-soft-output (SISO) run-length-limited (RLL) decoder as opposed to the conventional hard output RLL decoder. A final aim of this paper is to analyze the types of errors that occur in the system in relation to the convergence of the iterative decoder.

Keywords

channel coding; error correction codes; error statistics; iterative decoding; magnetic storage; parity check codes; performance evaluation; BER; LDPC codes; data recovery techniques; iterative decoder; low-density-parity-check; patterned media storage systems; performance evaluation; run-length-limited decoder; soft-input-soft-output; Area measurement; Bit error rate; Computer science; Error correction codes; Gain measurement; Iterative decoding; Jitter; Parity check codes; Random media; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1463922

Filename

1463922