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Optimal modulation for known interference
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-7926-5081
KTH, School of Electrical Engineering (EES), Communication Theory.
2007 (English)In: 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, IEEE , 2007, 233-236 p.Conference paper, Published paper (Refereed)
Abstract [en]

We present a symbol-by- symbol approach to the problem of canceling known interference at the transmitter in a communication system. In the envisioned system, the modulator maps an information symbol (taken from a finite alphabet) and an interference symbol (from the complex field) onto a transmitted constellation point. The demodulator picks the information symbol (as a function of the received symbol) which minimizes the average error probability. We find the optimal modulator-demodulator pair, in the minimum-probability-of-symbol-error sense, via an iterative optimization procedure, for fixed average transmit power. We illustrate that the new scheme can perform close to the no-interference bound, and in particular that it outperforms Tomlinson-Harashima precoding, which is a classical but suboptimal solution to the problem under study.

Place, publisher, year, edition, pages
IEEE , 2007. 233-236 p.
Series
International Conference on Acoustics Speech and Signal Processing (ICASSP), ISSN 1520-6149
Keyword [en]
interference suppression, modulation
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-28991DOI: 10.1109/ICASSP.2007.366515ISI: 000248906600059Scopus ID: 2-s2.0-34547528501OAI: oai:DiVA.org:kth-28991DiVA: diva2:395609
Conference
32nd IEEE International Conference on Acoustics, Speech and Signal Processing Honolulu, HI, APR 15-20, 2007
Note
QC 20110207Available from: 2011-02-07 Created: 2011-01-25 Last updated: 2011-12-14Bibliographically approved

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Skoglund, Mikael

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CiteExportLink to record
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  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
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  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
  • html
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  • asciidoc
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