We evaluate the performance of the write-margin for the low-density parity-check (LDPC) coding and iterative decoding system in the 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 islands and the island position deviation. It is clarified that the LDPC coding and iterative decoding system in R/W channel using BPM at 3 Tbit/inch 2 has a write-margin of about 20%.
|出版ステータス||Published - 2011|
|イベント||9th Perpendicular Magnetic Recording Conference, PMRC 2010 - Sendai, Japan|
継続期間: 2011 5 17 → 2011 5 19
ASJC Scopus subject areas
- Physics and Astronomy(all)