Abstract
The BER performance of iterative decoding systems and PRML systems in a perpendicular magnetic recording channel is experimentally investigated. A performance evaluation system consisting of a spinstand, a recording waveform generator, a digital storage oscilloscope and a personal computer was used. PR1ML, PR2ML, EPR3ML, E2PR3ML and ME2PR4ML systems are discussed as a PRML channel. The 8/9 and 16/17 iterative-decoding systems consists of the encoder, with RSC encoder serially concatenated with precoded PR channels and the iterative decoder with APP modules using Max-log-MAP algorithm. The results show that EPR3ML and E2PR3ML provide good BER performance in a perpendicular magnetic recording channel and that the iterative decoding system is also an efficient way to improve the BER performance in the channel.
Original language | English |
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Pages (from-to) | 689-694 |
Number of pages | 6 |
Journal | IEEE Transactions on Magnetics |
Volume | 37 |
Issue number | 2 I |
DOIs | |
Publication status | Published - 2001 Mar |
Externally published | Yes |
Keywords
- Iterative decoding
- PR channel
- PRML system
- Perpendicular magnetic recording
- Serial concatenation
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering