A SECURE NOMA METHOD BASED ON PHYSICAL LAYER SECURITY

    公开(公告)号:US20240063849A1

    公开(公告)日:2024-02-22

    申请号:US18259753

    申请日:2021-12-26

    IPC分类号: H04B7/0426 H04K1/00 H04B7/06

    摘要: Disclosed is a secure scheme that incorporates both internal and external eavesdroppers to secure all users' links in the downlink PD-NOMA. In particular, the proposed scheme implies that the BS induces a phase shift in each user's symbol based on its corresponding instantaneous channel phase. The phase shift of each user is restricted such that the original symbol is moved to the location of another symbol in the constellation diagram. Therefore, as each user is aware of its instantaneous channel phase only, it will be able to recover the actual phase of its corresponding symbol. Thus, the proposed scheme does not only protect the data against eavesdroppers, but it also guarantees confidentiality and privacy against all other users.

    Cup for tremor patients
    2.
    发明授权

    公开(公告)号:US11678754B2

    公开(公告)日:2023-06-20

    申请号:US17771751

    申请日:2020-11-12

    IPC分类号: A47G19/22

    CPC分类号: A47G19/2261 A47G2200/046

    摘要: A cup developed for tremor patients, which provides for the tremor patients to carry out their dietary activities in an easy way, suitable for long-term usage, the cup including a body, an upper body, a central body, a lower body, a valve, a button, a plane, a wire, an under-button spring, a cup handle spring, a spring at the back of the pin, a spring at the back of magnet-c, a body sheath, pockets, a handle sheath, a magnet housing, a magnet-a, a magnet-b and a magnet-c.

    SECURE COMMUNICATION METHOD
    4.
    发明申请

    公开(公告)号:US20230039446A1

    公开(公告)日:2023-02-09

    申请号:US17789246

    申请日:2020-12-02

    IPC分类号: H04L9/08

    摘要: Disclosed is a method for a secure communication method having a secret key generation technique. The novelty of the proposed method stems from enhancing physical layer security (PHY) by using channel-adaptive keys, after manipulating a channel by introducing an artificial component into the channel. An adaptively designed artificial component is cascaded with the legitimate user’s channel. In an orthogonal frequency division multiplexing (OFDM) system, subcarriers corresponding to a channel gain higher than a threshold value are selected to extract the keys. Since the number of the selected subcarriers is adaptive, the length of the generated key sequences is changing adaptively as well. Thus, the channel reciprocity property in a time division duplexing (TDD) system is utilized.

    Automatic repeat-request system for providing absolute safety and authentication in wireless networks

    公开(公告)号:US11075710B2

    公开(公告)日:2021-07-27

    申请号:US16756684

    申请日:2018-12-26

    摘要: A system and method for providing confidentiality against eavesdropping and authentication against impersonation attacks for advanced wireless communication systems are disclosed. The method exploits ARQ as a MAC layer mechanism and artificial noise as a physical layer mechanism with maximal ratio combining to achieve secrecy. An artificial noise, not requiring class space in the channel, is designed and added to the data package based on the QoS requirements and channel condition between legitimate parties. Basically, a special AN, which does not require null-space in the channel, is designed based on the QoS requirements and the channel condition between the legitimate parties and injected to the data packet. If the same packet is requested by the legitimate receiver (Bob), an AN cancelling signal is designed and added to the next packet. Then, an AN-free packet is obtained by using MRC process at Bob, while deteriorating the eavesdropper's performance.

    BLIND IDENTIFICATION OF CHANNEL TAP NUMBERS IN WIRELESS COMMUNICATION

    公开(公告)号:US20230041106A1

    公开(公告)日:2023-02-09

    申请号:US17789304

    申请日:2020-12-02

    IPC分类号: H04L25/02

    摘要: The present disclosure relates to a method for blind identification of channel tap numbers in wireless communication by using deep neural networks (DNN). In the proposed method, it is possible to train a DNN using only the transmitted and received signals of a wireless system in order to obtain the number of channel taps. We propose a robust and efficient sparse representation technique for the identification of wireless channels. We estimate the number of channel taps which is considered as one of the sparse features of the hannel The blind estimation performed in the proposed system, enhances the spectral efficiency of the used wireless communication system since the employed DNN does not require to transmit extra signals for identifying the channel taps. In our identification method, physical insights are not available or used.

    Cup for Tremor Patients
    9.
    发明申请

    公开(公告)号:US20220369836A1

    公开(公告)日:2022-11-24

    申请号:US17771751

    申请日:2020-11-12

    IPC分类号: A47G19/22

    摘要: A cup developed for tremor patients, which provides for the tremor patients to carry out their dietary activities in an easy way, suitable for long-term usage, the cup including a body, an upper body, a central body, a lower body, a valve, a button, a plane, a wire, an under-button spring, a cup handle spring, a spring at the back of the pin, a spring at the back of magnet-c, a body sheath, pockets, a handle sheath, a magnet housing, a magnet-a, a magnet-b and a magnet-c.