Centre National De La Recherche Scientifique

Institut National Des Sciences Appliquees De Rennes

Ecole Superieure D'electricite

Yves Louet

Jean-Francois Helard

Jacques Palicot

Irene Masinjara Mahafeno

Jean-François Helard

Irène Masinjara Mahafeno

Désiré Guel

A method and apparatus for multicarrier transmission of a signal representing a source signal. The source signal includes symbols including a set of subcarriers, transmitted simultaneously and having pilot subcarriers intended for at least one processing operation for assisting and/or improving decoding in at least one receiver, and data subcarriers, the location in time-frequency space and a reference value of the pilot subcarriers being known to the at least one receiver. The method of transmission includes: a phase of modifying, for a given symbol, the reference value of at least one subset of the pilot subcarriers, by correction data configured to correct phase and/or amplitude for each of the pilot subcarriers of the subset, so as to minimize peak-to-average power ratio, the correction data taking at least three distinct values, a transition between the values of two successive pilot subcarriers of the subset on a frequency axis being constant.

Peak-to-average power ratio reduction in a multicarrier signal

Growing community of inventors

Betton, France

Yves Louet