Title :
Turbo coding for decision feedback equalized magnetic recording channels
Author :
Zhao, Fang ; Mathew, George ; Farhang-Boroujeny, B.
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
The application of iterative detection using turbo codes for signal detection in magnetic recording channels has become a topic of intense research. Interesting results have been reported for partial response equalized recording channels. This paper investigates the performance of turbo codes on decision feedback equalized (DFE) recording channels. The channel detector used is a soft-in soft-out parallel DFE (PDFE) detector. Simulation results shows a coding gain of more than 3 dB at a bit error rate of 10-6. Further, the error propagation in PDFE has been significantly minimized by the de-interleaver between PDFE and turbo decoder, and it does not influence the overall burst error performance
Keywords :
channel coding; decision feedback equalisers; decoding; digital magnetic recording; error statistics; partial response channels; signal detection; turbo codes; 3 dB; DFE recording channels; PDFE detector; bit error rate; burst error performance; channel detector; de-interleaver; decision feedback equalized magnetic recording channels; error propagation; iterative detection; partial response equalized recording channels; signal detection; soft-in soft-out parallel DFE detector; turbo coding; turbo decoder; AWGN; Bit error rate; Concatenated codes; Decision feedback equalizers; Detectors; Intersymbol interference; Iterative decoding; Magnetic recording; Signal detection; Turbo codes;
Conference_Titel :
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-7097-1
DOI :
10.1109/ICC.2001.936645
