Abstract
We present a modified turbo equalization scheme that accounts for the colored noise present in high-density partial-response equalization systems. The scheme uses soft information from previous turbo iterations to selectively predict the noise before the next iteration. Simulation results on a PR4 target with low-density parity check (LDPC) coding show that the proposed scheme with up to 2-tap prediction substantially outperforms standard turbo equalization schemes for LDPC-coded EPR4 and PR4 channels.
Original language | English (US) |
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Pages (from-to) | 2959-2961 |
Number of pages | 3 |
Journal | IEEE Transactions on Magnetics |
Volume | 41 |
Issue number | 10 |
DOIs | |
State | Published - Oct 1 2005 |
Keywords
- Iterative detection/decoding
- Noise-predictive turbo equalization
- Partial-response channels
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering