Commissariat a L'energie Atomique

Stmicroelectronics N.v.

Chiara Martinelli-Cattaneo

Mathieu Bouvier Des Noes

Dimitri Ktenas

Miguel Kirsch

Luc Maret

Régis Cattenoz

Stéphane Tanrikulu

A transmission band of an analog signal including successive symbols to be transmitted is notched, where each symbol includes sub-carriers to be modulated. In particular, in each symbol the sub-carriers corresponding to a part of the transmission band to be notched are suppressed. In addition, in each symbol a chosen part of the remaining sub-carriers to be modulated is also suppressed.

Method and device for notching the transmission band of an analog signal, in particular for a detect and avoid (DAA) operation mode of an MB-OFDM system

This method for carrying out the flexible demodulation of data modulated following an amplitude modulation in quadrature is used in a communications system employing a code division multiple access technique (CDMA) and an optical frequency division multiplexing (OFDM) using non-binary spread codes. The invention includes steps for determining a simplified expression specific to the logarithm of the likelihood ratio.

Method and device for carrying out flexible demodulation in an OFDM-CDMA system

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Sergy, France

Chiara Martinelli-Cattaneo