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    DEVICES AND METHODS FOR MACHINE LEARNING ASSISTED SPHERE DECODING
    101.
    发明申请
    DEVICES AND METHODS FOR MACHINE LEARNING ASSISTED SPHERE DECODING 有权

    公开(公告)号：US20220247605A1

    公开(公告)日：2022-08-04

    申请号：US17620715

    申请日：2020-06-23

    Applicant: INSTITUT MINES-TELECOM

    Inventor： Ghaya REKAYA ,  Aymen ASKRI

    IPC: H04L25/03 ,  G06N3/04 ,  G06N20/10

    Abstract: A decoder for decoding a signal received through a transmission channel represented by a channel matrix using a search sphere radius. The decoder comprises a radius determination device for determining a search sphere radius from a preliminary radius. The radius determination device is configured to: i. apply a machine learning algorithm to input data derived from the received signal, the channel matrix and a current radius, the current radius being initially set to the preliminary radius, which provides a current predicted number of lattice points associated with the current radius; ii. compare the current predicted number of lattice points to a given threshold; iii. update the current radius if the current predicted number of lattice points is strictly higher than the given threshold, the current radius being updated by applying a linear function to the current radius; Steps i to iii are iterated until a termination condition is satisfied, the termination condition being related to the current predicted number, the radius determination device being configured to set the search sphere radius to the current radius in response to the termination condition being satisfied.

    DEVICES AND METHODS FOR MACHINE LEARNING ASSISTED PRECODING
    102.
    发明申请
    DEVICES AND METHODS FOR MACHINE LEARNING ASSISTED PRECODING 有权

    公开(公告)号：US20220247460A1

    公开(公告)日：2022-08-04

    申请号：US17620716

    申请日：2020-06-23

    Applicant: INSTITUT MINES-TELECOM

    Inventor： Ghaya REKAYA ,  Aymen ASKRI

    IPC: H04B7/0456 ,  G06N20/00

    Abstract: A precoder for precoding a vector of information symbols is provided. The precoder includes a radius determination unit configured to determine a search sphere radius, the determination of the search sphere radius comprising applying a machine learning algorithm to input data dependent on the vector of information symbols and on a predefined precoding matrix; a sphere encoding unit configured to determine a perturbation vector from lattice points found inside a spherical region by applying a sphere search-based sequential algorithm, the spherical region having as a radius the search sphere radius, and a precoding unit configured to precode the vector of information symbols using the perturbation vector and a precoding matrix.

    Optical transmission system and method for core selection in multi-core fibers
    104.
    发明授权
    Optical transmission system and method for core selection in multi-core fibers 有权

    公开(公告)号：US11218218B2

    公开(公告)日：2022-01-04

    申请号：US17050358

    申请日：2019-04-10

    Applicant: INSTITUT MINES-TELECOM

    Inventor： Ghaya Rekaya ,  Akram Abouseif ,  Yves Jaouen

    IPC: H04J14/04 ,  H04B10/2525 ,  H04B10/2581 ,  H04B10/50

    Abstract: Embodiments provide an optical transmission system comprising an optical transmitter configured to transmit data over an optical fiber transmission channel comprising a multi-core fiber, the data being carried by one or more optical signals propagating along the multi-core fiber according to a plurality of cores, each core among the plurality of cores being associated with one or more core parameters, wherein the optical transmission system comprises a core selection device configured to select a set of transmit cores among the plurality of cores according to a transmit core selection criterion, the transmit core selection criterion being related to the one or more core parameters, the optical transmitter being configured to transmit the data over the set of transmit cores.

    Methods and devices for estimating secret values
    105.
    发明授权
    Methods and devices for estimating secret values 有权

    公开(公告)号：US11210367B2

    公开(公告)日：2021-12-28

    申请号：US16060947

    申请日：2016-12-08

    Applicant: INSTITUT MINES-TELECOM

    Inventor： Olivier Rioul ,  Sylvain Guilley

    IPC: G06F17/18 ,  H04L9/00 ,  G06F17/16 ,  G06F21/55 ,  G06N7/00 ,  H04L9/36

    Abstract: A secret value estimation device is provided for determining an estimate of at least one secret value used by at least one cryptographic mechanism implemented in a cryptographic system from a statistical distribution of a set of multivariate leakage traces determined by a leakage traces statistical distribution unit. Each leakage trace being a vector comprises a plurality of random values, the number of said random values being an integer number superior or equal to 1, the statistical distribution being a function of parametric linear combinations of a set of leakage model basis vectors representing a multivariate leakage model, the number of basis vectors being an integer number superior or equal to 1, and the linear combinations being defined by a matrix of real values.

    OPTICAL TRANSMISSION SYSTEM AND METHOD FOR CORE SCRAMBLING FOR MULTICORE OPTICAL FIBERS
    106.
    发明申请
    OPTICAL TRANSMISSION SYSTEM AND METHOD FOR CORE SCRAMBLING FOR MULTICORE OPTICAL FIBERS 有权

    公开(公告)号：US20210376929A1

    公开(公告)日：2021-12-02

    申请号：US17050351

    申请日：2019-04-10

    Applicant: INSTITUT MINES TELECOM

    Inventor： Ghaya REKAYA ,  Akram ABOUSEIF ,  Yves JAOUEN

    IPC: H04B10/2581 ,  H04B10/2507 ,  H04B10/50 ,  H04B10/516 ,  H04B10/60 ,  H04J14/02

    Abstract: The various embodiments provide an optical transmission system comprising an optical transmitter configured to transmit data over an optical fiber transmission channel made of a multi-core fiber, optical signals carrying the data propagate along the multi-core fiber according to two or more cores, each core being associated with one or more core parameters, wherein the optical transmission system comprises: a scrambling configuration device configured to determine a scrambling function depending on one or more of the core parameters associated with the two or more cores, and at least one scrambling device arranged in the optical fiber transmission channel for scrambling the two or more cores, each of the at least one scrambling device being configured to determine permuted cores by applying the scrambling function to the two or more cores and to redistribute the optical signals according to the permuted cores.

    MULTIBAND ANTENNA ARRANGEMENT BUILT TO A SPECIFICATION FROM A LIBRARY OF BASIC ELEMENTS
    107.
    发明申请
    MULTIBAND ANTENNA ARRANGEMENT BUILT TO A SPECIFICATION FROM A LIBRARY OF BASIC ELEMENTS 有权

    公开(公告)号：US20210376470A1

    公开(公告)日：2021-12-02

    申请号：US17255407

    申请日：2019-06-27

    Applicant: INSTITUT MINES TELECOM - IMT ATLANTIQUE - BRETAGNE - PAYS DE LA LOIRE

    Inventor： Jean-Philippe COUPEZ

    IPC: H01Q5/371 ,  H01Q21/30 ,  H01Q9/40

    Abstract: An antenna arrangement that is designed to match, or approach based on a cost function, a specification includes a list of a plurality of predefined frequencies and, possibly a list of predefined bandwidths at a matching level. The antenna arrangement is designed using a plurality of predefined elements comprising a primary conductive element defined as a main trunk and a combination of secondary conductive elements selected from trunks, branches or leaves. The primary conductive element and the secondary conductive elements are defined by design parameters that comprise a susceptance that is a function of a geometry, a form factor, a main dimension, an orientation of the secondary conductive elements relative to the primary conductive element and a position of the secondary conductive elements on the primary conductive element. The antenna arrangement may be further defined to match a predefined form factor.

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