Prise en compte du facteur de crête dans le dimensionnement des systèmes de télécommunications

Abstract : OFDM is a well known modulation scheme used in many digital communication systems due to its strong immunity to multi-path fading and impulse noise while providing high bit rates at the same time. Complex time-domain samples of OFDM signals are approximately Gaussian distributed due to the statistical independence of carriers and centrallimit theorem. This means that there could be some very high peaks present in the signal characterized by the Peak to Average Power Ratio (PAPR). This document covers my researchers regarding PAPR issue whose aim is to mitigate it so as to increase power amplifier efficiencies. It covers too applications to software and cognitive ratio.
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Habilitation à diriger des recherches
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Submitted on : Friday, April 9, 2010 - 10:24:27 AM
Last modification on : Friday, November 16, 2018 - 1:26:53 AM
Long-term archiving on : Tuesday, September 14, 2010 - 5:51:32 PM

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  • HAL Id : tel-00471891, version 1

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Yves Louët. Prise en compte du facteur de crête dans le dimensionnement des systèmes de télécommunications. Traitement du signal et de l'image [eess.SP]. Université Rennes 1, 2010. ⟨tel-00471891⟩

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