Patents by Inventor Mohamed GRISSA

Mohamed GRISSA 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).

  • Apparatus and method for protecting location privacy of cooperative spectrum sensing users
    Patent number: 11343278
    Abstract: An apparatus is provided which comprises: logic to privately compare one or more received Order Preserving Encrypted (OPE) signal strength (RSS) values, from a plurality of secondary users (SUs), with a OPE threshold value; a transmitter to send the comparison result to a fusion center (FC); and a receiver to receive the OPE threshold value from the FC.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: May 24, 2022
    Assignee: Oregon State University
    Inventors: Mohamed Grissa, Atilla Yavuz, Bechir Hamdaoui
  • Hierarchical weighted consensus for permissioned blockchains
    Patent number: 11048596
    Abstract: A method of reaching consensus in a blockchain network including a plurality of nodes, including: clustering the nodes into a plurality of sites; randomly selecting a node at each site as a representative; initializing a weight for each node; receiving, by a first representative of a first site, a plurality of transactions received by nodes in the first site; constructing, by the first representative, a first block including the plurality of transactions received by the first representative; performing a weighted consensus mechanism to verify the first block, wherein each of nodes in the first site participates in a weighted Byzantine Fault Tolerant (BFT) consensus mechanism and wherein the consensus is based upon each node's weight; performing a BFT consensus mechanism by the plurality of representatives on the first block; updating each nodes weight; and updating the representative for each site by selecting the node at each site with the highest weight.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: June 29, 2021
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Anwar Walid, Mohamed Grissa
  • HIERARCHICAL WEIGHTED CONSENSUS FOR PERMISSIONED BLOCKCHAINS
    Publication number: 20200192770
    Abstract: A method of reaching consensus in a blockchain network including a plurality of nodes, including: clustering the nodes into a plurality of sites; randomly selecting a node at each site as a representative; initializing a weight for each node; receiving, by a first representative of a first site, a plurality of transactions received by nodes in the first site; constructing, by the first representative, a first block including the plurality of transactions received by the first representative; performing a weighted consensus mechanism to verify the first block, wherein each of nodes in the first site participates in a weighted Byzantine Fault Tolerant (BFT) consensus mechanism and wherein the consensus is based upon each node's weight; performing a BFT consensus mechanism by the plurality of representatives on the first block; updating each nodes weight; and updating the representative for each site by selecting the node at each site with the highest weight.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 18, 2020
    Inventors: Anwar WALID, Mohamed GRISSA
  • APPARATUS AND METHOD FOR PROTECTING LOCATION PRIVACY OF COOPERATIVE SPECTRUM SENSING USERS
    Publication number: 20200178301
    Abstract: An apparatus is provided which comprises: logic to privately compare one or more received Order Preserving Encrypted (OPE) signal strength (RSS) values, from a plurality of secondary users (SUs), with a OPE threshold value; a transmitter to send the comparison result to a fusion center (FC); and a receiver to receive the OPE threshold value from the FC.
    Type: Application
    Filed: February 6, 2020
    Publication date: June 4, 2020
    Applicant: Oregon State University
    Inventors: Mohamed GRISSA, Atilla YAVUZ, Bechir HAMDAOUI
  • Apparatus and method for protecting location privacy of cooperative spectrum sensing users
    Patent number: 10575331
    Abstract: An apparatus is provided which comprises: logic to privately compare one or more received Order Preserving Encrypted (OPE) signal strength (RSS) values, from a plurality of secondary users (SUs), with a OPE threshold value; a transmitter to send the comparison result to a fusion center (FC); and a receiver to receive the OPE threshold value from the FC.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: February 25, 2020
    Assignee: Oregon State University
    Inventors: Mohamed Grissa, Attila Yavuz, Bechir Hamdaoui
  • APPARATUS AND METHOD FOR PROTECTING LOCATION PRIVACY OF COOPERATIVE SPECTRUM SENSING USERS
    Publication number: 20180249504
    Abstract: An apparatus is provided which comprises: logic to privately compare one or more received Order Preserving Encrypted (OPE) signal strength (RSS) values, from a plurality of secondary users (SUs), with a OPE threshold value; a transmitter to send the comparison result to a fusion center (FC); and a receiver to receive the OPE threshold value from the FC.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 30, 2018
    Applicant: Oregon State University
    Inventors: Mohamed GRISSA, Attila YAVUZ, Bechir HAMDAOUI