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Comparison of coded OFDM systems with coherent and incoherent detection

Comparaison des systÈmes cofdm avec dÉtection cohÉrente et non cohÉrente

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Abstract

Orthogonal frequency division multiplexing (ofdm) is used for transmitting high data rates over frequency-selective radio channels in order to simplify equalization. No equalization at all is required if a differential modulation scheme is used. In this paper we compare the performance of convolutionally coded ofdm systems with coherent and with differential modulation in terms of bit error rate.

Résumé

Le multiplexage par répartition en fréquences orthogonales est utilisé pour la transmission à hauts débits sur des canaux radioélectriques sélectifs en fréquence pour simplifier ľégalisation. Avec une modulation différentielle, aucune égalisation n’est nécessaire. Dans cet article, les performances des systèmes ofdm avec codes convolutionnels sont comparées pour une modulation cohérente et pour une modulation différentielle, en fonction du taux ďerreurs.

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Authors and Affiliations

  1. Technical University of Braunschweig, Schleinitzstr. 22, D-38092, Braunschweig, Allemagne

    Hermann Rohling & Thomas May

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  1. Hermann Rohling
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  2. Thomas May
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Correspondence to Hermann Rohling or Thomas May.

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Rohling, H., May, T. Comparison of coded OFDM systems with coherent and incoherent detection. Ann. Télécommun. 52, 52–57 (1997). https://doi.org/10.1007/BF03001050

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  • DOI: https://doi.org/10.1007/BF03001050

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