Multilevel coding: aspects from information theory
- 24 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
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.Keywords
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