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Improving Spectral Efficiency While Reducing PAPR Using Faster-Than-Nyquist Multicarrier Signaling

Siclet, Cyrille and Roque, Damien and Marquet, Alexandre and Ros, Laurent Improving Spectral Efficiency While Reducing PAPR Using Faster-Than-Nyquist Multicarrier Signaling. (2017) In: 12th International Workshop, Nets4Cars/Nets4Trains/Nets4Aircraft 2017, 4 May 2017 - 5 May 2017 (Toulouse, France).

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Official URL: http://dx.doi.org/10.1007/978-3-319-56880-5_3

Abstract

Multicarrier modulations are widely used in mobile radio applications due to their adaptability to the time-frequency characteristics of the channel, thus enabling low-complexity equalization. However, their intrinsically high peak-to-average power ratio (PAPR) is a major drawback with regard to implementation issues (e.g., power amplification efficiency, regulatory constraints...). In this paper, we confirm that the PAPR can be decreased as the signaling density (i.e., spectral efficiency at fixed constellation size) increases, even in the case where symbols cannot be perfectly reconstructed using a linear system. In such a two-dimensional generalization of faster-than-Nyquist (FTN) systems, PAPR distribution models from the literature are confirmed by simulation results. Furthermore, for a fixed number of subcarriers, we show that a sufficient condition to yield the optimal PAPR distribution at the output of a critically sampled transmitter is to specify pulse shapes as tight frames. Finally, simulation are performed in the more realistic case of an oversampled transmitted signal.

Item Type:Conference or Workshop Item (Paper)
Additional Information:This book constitutes the proceedings of the 12th International Workshop on Communication Technologies for Vehicles, Nets4Cars/Nets4Trains/Nets4Aircraft 2017, held in Toulouse, France, in May 2017.
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Institut polytechnique de Grenoble (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > Université Joseph Fourier Grenoble 1 - UJF (FRANCE)
Other partners > Université Stendhal-Grenoble 3 - U3 (FRANCE)
Other partners > Université de Grenoble (FRANCE)
Laboratory name:
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Deposited By: Damien Roque
Deposited On:19 Jun 2017 13:07

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