Centre National Detudes Spatiales

Benjamin Ros

Gaël Scot

Christelle Boustie

The invention relates to a method of receiving digital data transmitted on a coded serial digital transmission modulated on a noisy channel with non-stationary equalization attenuation. Digital data are stored associating a value of quality of transmission with the information elements received, and a mutual information value Ik is computed for each value of the quality of transmission. The value of quality of transmission consists of an equivalent signal/noise plus interference ratio calculated as a function of the method of equalization on the basis of various signal/channel noise ratio values measured for the various temporal symbols of information elements received of the signal received corresponding to one and the same information element and according to interference due to the waveform.

Method of reception and receiver for single-carrier cyclic waveform coded serial digital transmission

A satellite cellular radio-communication system using beam formation is provided. The system includes a satellite, at least one satellite access station, terminals, at least one control unit of a virtual cell. At least one of the terminals is configured to transmit and receive on a transmission channel having at least two frequency and spatial transmission resources of a same virtual cell that are different by their frequency band, a frequency and spatial transmission resource being a sub-band of a frequency band used in a beam. The frequency band is taken from among a predetermined number of frequency bands and was allocated to said beam according to a reuse function.

Growing community of inventors

Roques, France

Benjamin Ros