Title :
Performance of serially concatenated convolutional turbo codes for magnetic recording
Author :
Wu, Yunxiang ; Raghunathan, Aravind ; Cronch, Robert D. ; Bruner, Nikki 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 :
Performance of serially concatenated convolutional turbo codes has been evaluated for the Lorentzian channel using simulation, and experimentally for a real hard disk drive. The experimental results are consistent with simulations, which show a substantial gain over uncoded systems. To limit the number of unnecessary iterations, two stopping criteria were studied. One of them, namely, the observed hard decisions method, was used in the drive data experiment
Keywords :
concatenated codes; convolutional codes; digital magnetic recording; disc drives; hard discs; turbo codes; Lorentzian channel; drive data experiment; hard decisions method; hard disk drive; magnetic recording; serially concatenated convolutional turbo codes; stopping criteria; Concatenated codes; Convolution; Convolutional codes; Gain control; Iterative decoding; Magnetic recording; Partial response channels; Signal to noise ratio; Timing; Turbo codes;
Journal_Title :
Magnetics, IEEE Transactions on
