Trellis precoding: combined coding, precoding and shaping for intersymbol interference channels
| Autor: | M.V. Eyuboglu, G.D. Forney |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Spatial correlation
Computer science Transmitter Equalization (audio) Space–time trellis code Library and Information Sciences Precoding Coding gain Computer Science Applications Intersymbol interference Channel capacity Control theory Zero-forcing precoding Algorithm Quadrature amplitude modulation Information Systems Communication channel |
| Zdroj: | IEEE Transactions on Information Theory. 38:301-314 |
| ISSN: | 1557-9654 0018-9448 |
| DOI: | 10.1109/18.119688 |
| Popis: | On a linear Gaussian channel with intersymbol interference (ISI), trellis precoding is a method that achieves the equalization performance of Tomlinson-Harashima (TH) precoding, the coding gain of any known lattice-type coset code, and a considerable shaping gain. Trellis precoding may be viewed as a generalization of trellis shaping to Gaussian ISI channels, or, alternatively, as a generalization of TH precoding, with coded modulation that achieves shaping gain. With trellis precoding channel capacity can be approached essentially as closely on any strictly bandlimited, high signal-to-noise ratio Gaussian channel as on the ideal channel, using the same coding techniques. For first- and second-order FIR and IIR (finite and infinite impulse response) channels, it is shown that shaping gains close to 1 dB can be obtained with a two-dimensional four-state trellis code. Trellis precoding is quite practical whenever channel information is available at the transmitter. > |
| Databáze: | OpenAIRE |
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