Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Stmicroelectronics S.a.

Jean-Benoit Pierrot

Olivier Savry

Olivier Isson

Pierre-Henri Thevenon

Thierry Lenez

Claude Castelluccia

Patrice Lenez, Legal Representative

Sana Ben Hamida

A method for securing a wireless communication between a transmitter and a receiver includes: reception of a signal by the receiver; extraction by the receiver of at least one noise parameter of this signal received; comparison of the extracted noise parameter with at least one corresponding reference noise parameter stored in a memory in the receiver; decision on the presence or absence of a relay device between the transmitter and the receiver according to the result of this comparison; a preliminary calibration of the receiver, wherein: the receiver receives a signal resulting from a direct communication with the transmitter without intervention of a relay device, the receiver extracts at least one noise parameter from the signal received, and the receiver stores this noise parameter in the memory as a reference noise parameter characteristic of a direct communication without a relay device between the transmitter and the receiver.

Method of securing a wireless communication, receiver device and communication system implementing this method

Detection method and device for a receiver in a digital communication system designed to process a frame comprising a periodic sub-set of length n, said method comprising the following steps:&#x2014;determining a first vector u having a length n;&#x2014;determining a second shifted vector v;&#x2014;calculating a correlation function between said first and second vectors;&#x2014;calculating a quadratic error function between said first and second vectors;&#x2014;calculating a first cost function that is a linear combination of both preceding functions and, according to the sign of the result,&#x2014;calculating a second cost function of frame beginning estimate; and&#x2014;starting the communication system receiver.

Method and system for controlling a receiver in a digital communication system

Growing community of inventors

Saint-Egreve, France

Jean-Benoit Pierrot