Patents by Inventor Jawwad Ahmad

Jawwad Ahmad 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).

  • Patent number: 11483183
    Abstract: A device, method, and non-transitory computer readable medium to perform a method of blind equalization implemented by a filter bank multi-carrier with offset quadrature amplitude modulation (FBMC-OQAM) transmission system. A first matrix W is obtained by dividing a second matrix V by a receiver waveform matrix G. The second matrix V is obtained by calculating a total objective function J until the total objective function J is either constant or below a threshold error margin. The calculation of the total objective function J includes iterating calculations with a plurality of combination of a frequency bin p and a time slot q. Weights of the obtained first matrix W are applied to an equalizer. A received signal in the equalizer is processed using the applied weights. The weights of the obtained first matrix W are configured to minimize a total outage probability Pout, TOTAL.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: October 25, 2022
    Assignee: King Abdulaziz University
    Inventors: Muhammad Moinuddin, Ubaid M. Al-Saggaf, Jawwad Ahmad, Asmaa Ubaid Al-Saggaf, Mohammad S. Alhazmi
  • Patent number: 11218885
    Abstract: A method for spectrum sensing for cognitive radio includes performing a process of local spectrum sensing using receive beamforming and energy detection at each of a plurality of secondary users included in a cognitive radio network, wherein the process of local spectrum sensing decides between two hypotheses corresponding to absence and presence of a primary user, the two hypotheses being formulated using a primary user signal, a plurality of co-channel interferences, and sensing noise, the primary user signal, the plurality of co-channel interferences, and the sensing noise being received at each of the plurality of secondary users, and a set of beamforming weights of the receive beamforming is determined by optimizing a probability of detection and constraining a probability of false alarm.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: January 4, 2022
    Assignee: King Abdulaziz University
    Inventors: Muhammed Moinuddin, Ubaid M. Al-Saggaf, Mohammed A. Alrefaei, Jawwad Ahmad
  • Publication number: 20210360422
    Abstract: A method for spectrum sensing for cognitive radio includes performing a process of local spectrum sensing using receive beamforming and energy detection at each of a plurality of secondary users included in a cognitive radio network, wherein the process of local spectrum sensing decides between two hypotheses corresponding to absence and presence of a primary user, the two hypotheses being formulated using a primary user signal, a plurality of co-channel interferences, and sensing noise, the primary user signal, the plurality of co-channel interferences, and the sensing noise being received at each of the plurality of secondary users, and a set of beamforming weights of the receive beamforming is determined by optimizing a probability of detection and constraining a probability of false alarm.
    Type: Application
    Filed: June 25, 2021
    Publication date: November 18, 2021
    Applicant: King Abdulaziz University
    Inventors: Muhammed MOINUDDIN, Ubaid M. Al-Saggaf, Mohammed A. Alfefaei, Jawwad Ahmad
  • Patent number: 11146970
    Abstract: A method for spectrum sensing for cognitive radio includes performing a process of local spectrum sensing using receive beamforming and energy detection at each of a plurality of secondary users included in a cognitive radio network, wherein the process of local spectrum sensing decides between two hypotheses corresponding to absence and presence of a primary user, the two hypotheses being formulated using a primary user signal, a plurality of co-channel interferences, and sensing noise, the primary user signal, the plurality of co-channel interferences, and the sensing noise being received at each of the plurality of secondary users, and a set of beamforming weights of the receive beamforming is determined by optimizing a probability of detection and constraining a probability of false alarm.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: October 12, 2021
    Assignee: King Abdulaziz University
    Inventors: Muhammed Moinuddin, Ubaid M. Al-Saggaf, Mohammed A. Alrefaei, Jawwad Ahmad
  • Patent number: 11076299
    Abstract: A method for spectrum sensing for cognitive radio includes performing a process of local spectrum sensing using receive beamforming and energy detection at each of a plurality of secondary users included in a cognitive radio network, wherein the process of local spectrum sensing decides between two hypotheses corresponding to absence and presence of a primary user, the two hypotheses being formulated using a primary user signal, a plurality of co-channel interferences, and sensing noise, the primary user signal, the plurality of co-channel interferences, and the sensing noise being received at each of the plurality of secondary users, and a set of beamforming weights of the receive beamforming is determined by optimizing a probability of detection and constraining a probability of false alarm.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: July 27, 2021
    Assignee: King Abdulaziz University
    Inventors: Muhammed Moinuddin, Ubaid M. Al-Saggaf, Mohammed A. Alrefaei, Jawwad Ahmad
  • Patent number: 10880752
    Abstract: A method for spectrum sensing for cognitive radio includes performing a process of local spectrum sensing using receive beamforming and energy detection at each of a plurality of secondary users included in a cognitive radio network, wherein the process of local spectrum sensing decides between two hypotheses corresponding to absence and presence of a primary user, the two hypotheses being formulated using a primary user signal, a plurality of co-channel interferences, and sensing noise, the primary user signal, the plurality of co-channel interferences, and the sensing noise being received at each of the plurality of secondary users, and a set of beamforming weights of the receive beamforming is determined by optimizing a probability of detection and constraining a probability of false alarm.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: December 29, 2020
    Assignee: King Abdulaziz University
    Inventors: Muhammed Moinuddin, Ubaid M. Al-Saggaf, Mohammed A. Alrefaei, Jawwad Ahmad