Title :
Performance of high rate turbo codes on a PR4-equalized magnetic recording channel
Author :
Ryan, William E.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA
Abstract :
We discuss the applicability of high rate turbo codes for magnetic recording, citing in particular the attractiveness of interleaver gain as opposed to coding gain. We then examine the performance of rate 4/5, 8/9, and 16/17 turbo codes on a PRA-equalized magnetic recording channel at a user density of Su=2.0. Simulation results show that a gain of 7.1 dB relative to the uncoded situation is attainable at an error rate of 10-5 for the rate 4/5 and 8/9 codes, whereas the rate 16/17 code achieves a gain of 6.5 dB
Keywords :
concatenated codes; convolutional codes; decoding; digital magnetic recording; equalisers; interleaved codes; partial response channels; PR4-equalized magnetic recording channel; binary concatenated convolutional codes; coding gain; error rate; high rate turbo codes; interleaver gain; performance; simulation results; soft output detectors/decoders; user density; Concatenated codes; Convolutional codes; Detectors; Disk recording; Error analysis; Gain; Iterative decoding; Magnetic recording; Maximum likelihood decoding; Turbo codes;
Conference_Titel :
Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-4788-9
DOI :
10.1109/ICC.1998.685151
