Multilevel coding: aspects from information theory

Multilevel coding: aspects from information theory

Important issues for coded modulation in practice are derived from information theoretic parameters. Optimality of multilevel coding as well as various rules to assign rates to the individual component codes are discussed. Moreover, suitable dimensionality of the signal constellation used for coding...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Fischer, R.F.H., Huber, J.B., Wachsmann, U.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Block codes
Constellation diagram
Convolutional codes
Decoding
Information theory
Modulation coding
Multidimensional systems
Predictive models
Signal mapping
World Wide Web
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Beschreibung
Zusammenfassung:Important issues for coded modulation in practice are derived from information theoretic parameters. Optimality of multilevel coding as well as various rules to assign rates to the individual component codes are discussed. Moreover, suitable dimensionality of the signal constellation used for coding is considered. All phenomena predicted from information theory are confirmed by simulation results. Finally, optimum combination of coding and signal shaping is derived. Noticeable shaping gains are only achievable if presented rules are taken into account.
DOI:10.1109/GLOCOM.1996.586754