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Equalization combined with trellis coded and turbo trellis coded modulation in the nonlinear satellite channel

Authors: S.W. Heo; S.B. Gelfand; J.V. Krogmeier;

Equalization combined with trellis coded and turbo trellis coded modulation in the nonlinear satellite channel

Abstract

We study advanced receiver based techniques to alleviate the effects of nonlinear distortion in the bandlimited coded nonlinear satellite channel. First we develop a novel reduced complexity maximum likelihood sequence estimator for a Volterra channel model, which can be used for combined equalization and decoding in trellis coded systems. We show that the combined equalization and decoding scheme gives about 1.0 dB gain for 16 QAM TCM (at a BER=10/sup -3/) compared with conventional separate equalization, and is more robust with respect to deviation of the output back-off from its optimal value. We also investigate the performance of turbo coding in the nonlinear satellite channel using combined and separate equalization and decoding schemes.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Average
Top 10%
Average
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