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Combined transmitter diversity and multi-level modulation techniques
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. (Radio Communication Systems)ORCID iD: 0000-0001-9697-9978
2006 (English)In: Wireless personal communications, ISSN 0929-6212, E-ISSN 1572-834X, Vol. 39, no 2, 215-227 p.Article in journal (Refereed) Published
Abstract [en]

Orthogonal transmitter diversity such as frequency diversity and time diversity is quite simple to implement and, with optimum signal combining, can take full advantage of fading multipath channels. However, such a scheme has a bandwidth efficiency that decreases inversely with the number of diversity branches making it less attractive in wireless communications applications. This paper considers combined orthogonal transmitter diversity and multi-level linear modulation techniques. The idea is to view the signal constellations of the modulation scheme in an augmented signal space formed by the modulation signal dimension and the number of branches of the transmitter diversity scheme. This augmented signal space provides a good spread for the modulation signal points and can be quite efficient for high-level linear modulation techniques. The obtained results show that this combined scheme, not only improves the system performance on both additive white Gaussian noise and fading multipath channels, but also improves the bandwidth efficiency of orthogonal transmitter diversity.

Place, publisher, year, edition, pages
2006. Vol. 39, no 2, 215-227 p.
Keyword [en]
orthogonal transmitter diversity, multi-level linear modulation, diversity gain, bandwidth efficiency, wireless communications
National Category
Telecommunications
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-30266DOI: 10.1007/s11277-006-9089-7ISI: 000240318100006Scopus ID: 2-s2.0-33748430379OAI: oai:DiVA.org:kth-30266DiVA: diva2:399243
Note
QC 20111004Available from: 2011-02-21 Created: 2011-02-21 Last updated: 2017-12-11Bibliographically approved

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Ben Slimane, Slimane

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CiteExportLink to record
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Citation style
  • apa
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  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf