Title :
Erasure detection algorithms for magnetic recording channels
Author :
Tan, Weijun ; Xia, Haitao ; Cruz, J.R.
Author_Institution :
Sch. of Electr. & Comput. Eng., Univ. of Oklahoma, Norman, OK, USA
fDate :
7/1/2004 12:00:00 AM
Abstract :
The effects of precoding on the detection of erasures based on violations of run-length-limited (RLL) constraints for low-density parity-check (LDPC) coded magnetic recording channels are investigated and an improved erasure detection algorithm is proposed. Its performance on an ME2PR4 channel is evaluated using computer simulations.
Keywords :
channel coding; magnetic recording; parity check codes; partial response channels; runlength codes; BCJR algorithm; ME2PR4 channel; RLL constraint violation; computer simulations; erasure detection; low-density parity-check codes; magnetic recording channels; partial response channels; precoding; run-length-limited codes; run-length-limited constraints; Bit error rate; Computer simulation; Detection algorithms; Detectors; Error correction codes; Helium; Magnetic noise; Magnetic recording; Parity check codes; System performance; BCJR algorithm; LDPC; PR; RLL; channels; codes; erasure; erasure detection; low-density parity-check; magnetic recording channels; partial response; precoding; run-length-limited;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.832499
