TY - JOUR
T1 - A study on nonbinary LDPC coding and iterative decoding system in BPM R/W channel
AU - Nakamura, Yasuaki
AU - Bandai, Yasuhisa
AU - Okamoto, Yoshihiro
AU - Osawa, Hisashi
AU - Aoi, Hajime
AU - Muraoka, Hiroaki
N1 - Funding Information:
ACKNOWLEDGMENT This work was supported in part by the Storage Research Consortium (SRC), Japan, and Grant-in-Aid for Scientific Research (B) of Japan Society for the Promotion of Science (JSPS), 21360188.
PY - 2011/10
Y1 - 2011/10
N2 - In this paper, the iterative decoding system using the nonbinary low-density parity-check (LDPC) code is studied in the magnetic recording system using a bit-patterned media (BPM) R/W channel affected by the write head field gradient, the media switching field distribution (SFD), the demagnetization field from adjacent dots, and the dot position deviation in an areal recording density of 2 Tb/in2. The performance of iterative decoding system using the nonbinary LDPC code over Galois field of GF(28) is evaluated by the computer simulation, and it is compared with the conventional iterative decoding system using the binary LDPC code. The results show that the nonbinary LDPC system provides better performance compared with the binary LDPC system.
AB - In this paper, the iterative decoding system using the nonbinary low-density parity-check (LDPC) code is studied in the magnetic recording system using a bit-patterned media (BPM) R/W channel affected by the write head field gradient, the media switching field distribution (SFD), the demagnetization field from adjacent dots, and the dot position deviation in an areal recording density of 2 Tb/in2. The performance of iterative decoding system using the nonbinary LDPC code over Galois field of GF(28) is evaluated by the computer simulation, and it is compared with the conventional iterative decoding system using the binary LDPC code. The results show that the nonbinary LDPC system provides better performance compared with the binary LDPC system.
KW - Bit-patterned media (BPM)
KW - iterative decoding
KW - nonbinary low-density parity-check (LDPC) code
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U2 - 10.1109/TMAG.2011.2147766
DO - 10.1109/TMAG.2011.2147766
M3 - Article
AN - SCOPUS:80053521332
SN - 0018-9464
VL - 47
SP - 3566
EP - 3569
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 10
M1 - 6028104
ER -