Title :
Bounds for low-density parity-check codes over partial response channels
Author :
Tan, Weijun ; Todd, Richard M. ; Cruz, J.R.
Author_Institution :
Sch. of Electr. & Comput. Eng., Oklahoma Univ., Norman, OK, USA
fDate :
9/1/2002 12:00:00 AM
Abstract :
A bounding technique is used to evaluate the performance of high-rate low-density parity-check codes over partial response channels. Performance bounds for an ensemble of random codes, as well as for particular finite-geometry codes, are computed. Simulations are used to evaluate the bounds. The results show that the bounds appear to be valid for signal-to-noise ratios and code rates of interest in magnetic recording.
Keywords :
channel coding; digital magnetic recording; error correction codes; geometric codes; maximum likelihood decoding; partial response channels; random codes; LDPC codes; bounding technique; finite-geometry codes; high-rate codes; low-density parity-check codes; magnetic recording; maximum likelihood decoding; partial response channels; performance bounds; random codes; signal-to-noise ratio; weight distribution; Computational modeling; Distributed computing; Euclidean distance; Helium; Magnetic analysis; Magnetic recording; Parity check codes; Partial response channels; Performance analysis; Signal to noise ratio;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.801877
