Title :
Low density parity check codes for magnetic recording channels
Author :
Song, Hongxin ; Todd, Richard M. ; Cruz, J.R.
Author_Institution :
Sch. of Electr. & Comput. Eng., Oklahoma Univ., Norman, OK, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
We propose a system for magnetic recording, using a low density parity check (LDPC) code as the error-correcting-code, in conjunction with a rate 16/17 quasi-maximum-transition-run channel code and a modified E2PR4-equalized channel. Iterative decoding between the partial response channel and the LDPC code is performed. Simulations show that this system can achieve a 5.9 dB gain over uncoded EPR4. The algorithms used to design this LDPC code are also discussed
Keywords :
channel coding; digital magnetic recording; equalisers; error correction codes; iterative decoding; partial response channels; 5.9 dB; coding gain; error-correcting-code; iterative decoding; low density parity check code; magnetic recording channels; modified E2PR4-equalized channel; partial response channel; rate 16/17 quasi-maximum-transition-run channel code; Algorithm design and analysis; Concatenated codes; Convolutional codes; Gain; Iterative algorithms; Iterative decoding; Magnetic recording; Parity check codes; Partial response channels; Turbo codes;
Journal_Title :
Magnetics, IEEE Transactions on
