Title :
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
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;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463922
