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Optimal intra-symbol spectral compensation for multicarrier modulation

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Author

Summary, in English

Spectral compensation aims at maximising the throughput of a multicarrier transmission system under a given power spectral density (PSD) constraint. A set of carefully chosen tones, the so called compensation tones, is modulated with a linear combination of the data transmitted over the complementary set of tones. The compensation tones support shaping of the transmit PSD so that the overall transmit power and thus the throughput increase. The contribution of this paper is twofold. First, we compute the optimal solution for a given set of compensation tones - optimal in the sense of maximising the mutual information between transmit and receive blocks for a time-dispersive Gaussian channel known to the transmitter. Second, we present a low-complexity heuristic to find the set of compensation tones.

Publishing year

2006

Language

English

Pages

138-141

Publication/Series

International Zurich Seminar on Digital Communications

Volume

2006

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Tones
  • Power spectral density (PSD)
  • Gaussian channels

Conference name

IEEE 2006 International Zurich Seminar on Digital Communications

Conference date

2006-02-22 - 2006-02-24

Conference place

Zurich, Switzerland

Status

Published

ISBN/ISSN/Other

  • CODEN: PIZCDH