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|Title:||Joint and separate detection-decoding on BPMR channels|
|Keywords:||Bit-patterned media (BPM)|
Davey-MacKay (DM) construction
|Source:||Wu, T., Armand, M.A. (2013). Joint and separate detection-decoding on BPMR channels. IEEE Transactions on Magnetics 49 (7) : 3779-3782. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2013.2250262|
|Abstract:||The presence of written-in errors is recognized as a challenging issue that limits the performance of bit-patterned media recording (BPMR). In this paper, we consider the Davey-MacKay coding scheme for a BPMR channel model which consists of a write channel producing dependent insertion, deletion, and substitution errors and a single-track equalized read channel with a GPR target. Three detection-decoding algorithms are proposed to work with an outer LDPC decoder to recover data encoded by the DM coding scheme on the BPMR channel. These include the Bahl-Cocke-Jelinek-Raviv binary input inner decoder (BCJR-BIID) algorithm, the joint detection-decoding algorithm and the separate detection-decoding (SDD) algorithm. Computer simulations show that at low to moderate (resp. high) signal-to-noise ratios, SDD (resp. BCJR-BIID) provides good performance-complexity trade-offs. © 1965-2012 IEEE.|
|Source Title:||IEEE Transactions on Magnetics|
|Appears in Collections:||Staff Publications|
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