Patents by Inventor Somichetty Gowrisankar

Somichetty Gowrisankar 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).

  • Selecting modulation and coding level and spatial rate for orthogonal frequency domain modulation systems
    Patent number: 7680206
    Abstract: Embodiments are directed to a link adaptation method that selects the optimum transmission scheme and modulation and coding signal (MCS) level within a MIMO system, based on optimal maximum throughput on the channels. The method selects the MCS levels and spatial rate values for broadband communication systems based on the instantaneous broadband MIMO-OFDM signaling capacities. The transmission rate over the transmission channel is selected based on a comparison of the capacities achieved under diversity coding and spatial multiplexing MIMO transmission schemes. The effect of a particular receiver type or implementation can also be factored into the signaling capacity. For a fixed target probability of error, the scheme or spatial rate that has the higher instantaneous throughput is selected for transmission.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: March 16, 2010
    Assignee: BECEEM Communications Inc.
    Inventors: Djordje Tujkovic, Erik Lindskog, Vara Prasad, Somichetty Gowrisankar, Erik Westman
  • Selecting modulation and coding level and spatial rate for orthogonal frequency domain modulation systems
    Publication number: 20070183529
    Abstract: Embodiments are directed to a link adaptation method that selects the optimum transmission scheme and modulation and coding signal (MCS) level within a MIMO system, based on optimal maximum throughput on the channels. The method selects the MCS levels and spatial rate values for broadband communication systems based on the instantaneous broadband MIMO-OFDM signaling capacities. The transmission rate over the transmission channel is selected based on a comparison of the capacities achieved under diversity coding and spatial multiplexing MIMO transmission schemes. The effect of a particular receiver type or implementation can also be factored into the signaling capacity. For a fixed target probability of error, the scheme or spatial rate that has the higher instantaneous throughput is selected for transmission.
    Type: Application
    Filed: January 31, 2007
    Publication date: August 9, 2007
    Inventors: Djordje Tujkovic, Erik Lindskog, Vara Prasad, Somichetty Gowrisankar, Erik Westman