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Design and performance analysis of a novel trellis coded space-time-frequency OFDM transmission scheme

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Oguz, Onur Aygolu, Umit Panayirci, Erdal

In this paper a new transmit diversity technique is proposed for wireless communications over frequency selective fading channels. The proposed technique utilises orthogonal frequency division multiplexing (OFDM) to transform a frequency selective fading channel into multiple flat fading subchannels on which first space-frequency coding and then additional space-time coding are applied resulting in a space-time-frequency OFDM (STF-OFDM) scheme. This scheme provides a quasi-orthogonal 4 x 4 transmission matrix but relax the constraint on channel fading parameters to be constant over four time or frequency slots into two time and two frequency slots. The pairwise error probability of the new scheme is evaluated and new code design criteria are obtained to improve the error performance. 64-, 128- and 256-state 4-PSK trellis codes for STF transmission scheme are generated based on these criteria and their frame error performances in an OFDM system are evaluated by computer simulations. Copyright (c) 2007 John Wiley & Sons, Ltd.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 2008
Language Anglais
Journal information "European Transactions on Telecommunications" - Vol. 19, no. 1, p. 67-75 (2008)
Peer reviewed yes
Publisher John Wiley & Sons Ltd (Chichester)
issn 1124-318X
e-issn 1541-8251
Publication status Publié
Affiliation UCL
Links
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Bibliographic reference Oguz, Onur ; Aygolu, Umit ; Panayirci, Erdal. Design and performance analysis of a novel trellis coded space-time-frequency OFDM transmission scheme. In: European Transactions on Telecommunications, Vol. 19, no. 1, p. 67-75 (2008)
Permanent URL http://hdl.handle.net/2078.1/36817