Title :
Picket-Shift Codes for Bit-Patterned Media Recording With Insertion/Deletion Errors
Author :
Ng, Yibin ; Kumar, B. V K Vijaya ; Cai, Kui ; Nabavi, Sheida ; Chong, Tow Chong
Author_Institution :
Data Storage Syst. Center (DSSC), Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
6/1/2010 12:00:00 AM
Abstract :
We report the results of an investigation of bit-patterned media recording (BPMR) channels containing insertion/deletion errors that may be introduced because of the write synchronization problem. We first describe a simple channel model for insertion/deletion errors in BPM, as a result of write clock frequency offset. Based on this channel model, we propose a new error correction coding (ECC) scheme to correct insertion/deletion errors-picket shift. Simulation results show that picket shift performs significantly better than a no-ECC scheme in the presence of insertion/deletion errors.
Keywords :
error correction codes; magnetic recording; synchronisation; bit-patterned media recording; channel model; deletion error; error correction coding; insertion error; picket shift; write clock frequency; write synchronization; Bit error rate; Clocks; Data storage systems; Error correction; Error correction codes; Frequency synchronization; Magnetic heads; Magnetic recording; Timing jitter; Writing; Bit-patterned media (BPM); frequency offset; insertion/deletion errors; write synchronization;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2010.2043926