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    Communication system for exchanging data between underwater devices and a land-based data communication network
    1.
    发明授权
    Communication system for exchanging data between underwater devices and a land-based data communication network 有权

    公开(公告)号：US11784722B2

    公开(公告)日：2023-10-10

    申请号：US17801594

    申请日：2021-02-22

    Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： Omar Alkhazragi ,  Mohamed-Slim Alouini ,  Osama Amin ,  Seifallah Jardak ,  Boon Siew Ooi ,  Basem Shihada

    IPC: H04B10/00 ,  H04B13/02 ,  H04J14/00

    CPC classification number: H04B13/02

    Abstract: A communication system includes a first communication gateway arranged proximate to a surface of a body of water and an underwater communication gateway. The underwater communication gateway is configured to receive data from a first underwater communication device using radio frequencies and the ethernet data link layer protocol, to convert the data received from the first underwater communication device from the ethernet data link layer protocol to the second data link layer protocol, and to transmit, using optical radiation and the second data link layer protocol, the data converted by the underwater communication gateway to the first communication gateway. The first communication gateway is configured to convert the data transmitted by the underwater communication gateway from the second data link layer protocol to the ethernet data link layer protocol, and to transmit, using the ethernet data link layer protocol, the data converted by the first communication device to a further communication device.

    GENERATION OF CORRELATED FINITE ALPHABET WAVEFORMS USING GAUSSIAN RANDOM VARIABLES
    3.
    发明申请
    GENERATION OF CORRELATED FINITE ALPHABET WAVEFORMS USING GAUSSIAN RANDOM VARIABLES 有权
    使用高斯随机变量生成相关的有效字母波形

    公开(公告)号：US20160013819A1

    公开(公告)日：2016-01-14

    申请号：US14751916

    申请日：2015-06-26

    Applicant: King Abdullah University of Science and Technology

    Inventor： Sajid Ahmed ,  Mohamed Slim Alouini ,  Seifallah Jardak

    IPC: H04B1/04 ,  H04B7/06 ,  H04L27/36

    CPC classification number: H04B1/0475 ,  G01S7/32 ,  G01S13/26 ,  G01S13/325 ,  G01S2007/356 ,  H04B7/0617 ,  H04L27/36

    Abstract: Various examples of methods and systems are provided for generation of correlated finite alphabet waveforms using Gaussian random variables in, e.g., radar and communication applications. In one example, a method includes mapping an input signal comprising Gaussian random variables (RVs) onto finite-alphabet non-constant-envelope (FANCE) symbols using a predetermined mapping function, and transmitting FANCE waveforms through a uniform linear array of antenna elements to obtain a corresponding beampattern. The FANCE waveforms can be based upon the mapping of the Gaussian RVs onto the FANCE symbols. In another example, a system includes a memory unit that can store a plurality of digital bit streams corresponding to FANCE symbols and a front end unit that can transmit FANCE waveforms through a uniform linear array of antenna elements to obtain a corresponding beampattern. The system can include a processing unit that can encode the input signal and/or determine the mapping function.

    Abstract translation: 提供了各种方法和系统的例子，用于在例如雷达和通信应用中使用高斯随机变量来产生相关的有限字母波形。 在一个示例中，一种方法包括使用预定的映射函数将包含高斯随机变量（RV）的输入信号映射到有限字母非恒定包络（FANCE）符号上，以及通过天线元件的均匀线性阵列传输FANCE波形， 获得相应的波峰图。 FANCE波形可以基于高斯RV到FANCE符号的映射。 在另一示例中，系统包括可以存储对应于FANCE符号的多个数字比特流的存储器单元和可以通过天线元件的均匀线性阵列传输FANCE波形以获得相应的波峰图案的前端单元。 该系统可以包括可对输入信号进行编码和/或确定映射功能的处理单元。

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