Patents by Inventor Igor Tolochko

Igor Tolochko has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Channel estimation for ofdm systems
    Publication number: 20070110172
    Abstract: A method for performing channel estimation in an orthogonal frequency-division multiplexing system, the method including the steps of: receiving (80) transmitting pilot symbols from a plurality of transmit antennas; forming (82) a least-squares estimation matrix from the transmitted pilot symbols; forming (8488) a sparse smoothing matrix approximating a fixed weighting matrix, wherein each row vector in the sparse smoothing matrix contains one or more of the strongest weights in each row of the fixed weighting matrix; and (90) deriving a channel estimation matrix from the sparse smoothing matrix and the least-squares estimation matrix.
    Type: Application
    Filed: December 3, 2004
    Publication date: May 17, 2007
    Applicant: AUSTRALIAN TELECOMMUNICATIONS COOPERATIVE RESEARCH
    Inventors: Michael Faulkner, Igor Tolochko