Scheme for Utilizing the Soft Feedback Information in Bit-Patterned Media Recording Systems
- Authors
- Chi Dinh Nguyen; Lee, Jaejin
- Issue Date
- Mar-2017
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Bit-patterned media recording (BPMR); extrinsic information; intertrack interference (ITI); soft output Viterbi algorithm
- Citation
- IEEE TRANSACTIONS ON MAGNETICS, v.53, no.3
- Journal Title
- IEEE TRANSACTIONS ON MAGNETICS
- Volume
- 53
- Number
- 3
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/6440
- DOI
- 10.1109/TMAG.2016.2626386
- ISSN
- 0018-9464
- Abstract
- This paper presents a scheme that utilizes soft feedback information obtained from a decoder to eliminate detrimental interference in bit-patterned media recording (BPMR) systems. BPMR is a promising technology that can increase the storage area density of magnetic storage systems, but one of the main challenges is to overcome 2-D spatial interference. The performance of the proposed scheme is compared with that of a conventional iterative detection scheme, and the results indicate that the proposed model is better by approximately 1 dB at 20% track misregistration. In particular, the performance of the system is quite superior, allowing the design of systems with higher area densities.
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