Integrated sensor networks with optical and wireless links
    102.
    发明授权
    Integrated sensor networks with optical and wireless links 有权
    具有光纤和无线链路的集成传感器网络

    公开(公告)号:US08380072B2

    公开(公告)日:2013-02-19

    申请号:US12716442

    申请日:2010-03-03

    Abstract: A network includes an optical sensor network; and a radio frequency (RF) wireless sensor network coupled to the optical sensor network, wherein the optical sensor network and the RF wireless sensor network communications are coordinated over both optical and wireless links.

    Abstract translation: 网络包括光传感器网络; 以及耦合到所述光学传感器网络的射频(RF)无线传感器网络,其中所述光学传感器网络和所述RF无线传感器网络通信在光学和无线链路两者上协调。

    Polmux-OFDM-DD Transmitter and Receiver for Reduced Complexity and Overhead in Optical Access/Metro Transmission
    103.
    发明申请
    Polmux-OFDM-DD Transmitter and Receiver for Reduced Complexity and Overhead in Optical Access/Metro Transmission 有权
    Polmux-OFDM-DD发射机和接收机,用于降低光接入/城域传输中的复杂性和开销

    公开(公告)号:US20120263467A1

    公开(公告)日:2012-10-18

    申请号:US13446306

    申请日:2012-04-13

    Abstract: An optical communication system includes a polarization multiplexed orthogonal frequency-division multiplexing POLMUX-OFDM transmitter for generating a POLMUX-OFDM double sideband signal, an optical processing path for processing the double sideband signal from the transmitter; an analog-to-digital convert ADC-OFDM receiver coupled to the optical processing path for receiving the double sideband signal processed by the optical path; and a block-diagonal multiple-input multiple-output MIMO equalizer responsive to the receiver for enabling correct operation for a completely random incoming signal polarization state without adaptive polarization control at said receiver, which enables complexity.

    Abstract translation: 光通信系统包括用于产生POLMUX-OFDM双边带信号的偏振复用正交频分复用POLMUX-OFDM发射机,用于处理来自发射机的双边带信号的光处理路径; 耦合到光学处理路径的用于接收由光路处理的双边带信号的模数转换ADC-OFDM接收器; 以及响应于接收机的块对角多输入多输出MIMO均衡器,用于使能在所述接收机处没有自适应偏振控制的完全随机输入信号偏振状态的正确操作,这使得复杂性。

    MULTIDIMENSIONAL HYBRID MODULATIONS FOR ULTRA-HIGH-SPEED OPTICAL TRANSPORT
    104.
    发明申请
    MULTIDIMENSIONAL HYBRID MODULATIONS FOR ULTRA-HIGH-SPEED OPTICAL TRANSPORT 有权
    用于超高速光学传输的多维混合调制

    公开(公告)号:US20120263466A1

    公开(公告)日:2012-10-18

    申请号:US13441814

    申请日:2012-04-06

    CPC classification number: H04B10/2581 H04L27/2096

    Abstract: Systems and methods are disclosed with a spatial-domain-based multi-dimensional coded-modulation scheme that improves dramatically OSNR sensitivity and tolerance to fiber nonlinearities by using D-dimensional signal constellations, where D=2(2+M)N. The factor 2 originates from two polarizations, 2+M electrical basis functions are selected (2 in-phase/quadrature channels and M pulse-position like basis functions), and N represents the number of orbital angular momentum (OAM) states used in FMFs/MMFs. For single mode fiber applications N is 1.

    Abstract translation: 公开了具有基于空间域的多维编码调制方案的系统和方法,通过使用D维2信号星座(D = 2(2 + M)N),可以显着提高OSNR灵敏度和对光纤非线性的容限。 因子2源于两个极化,选择2 + M电基函数(2个同相/正交通道和M个脉冲位置,如基函数),N表示FMF中使用的轨道角动量(OAM)状态的数量 / MMFs。 对于单模光纤应用,N为1。

    Energy Efficient OFDM Transceiver
    105.
    发明申请
    Energy Efficient OFDM Transceiver 有权
    节能OFDM收发器

    公开(公告)号:US20120257897A1

    公开(公告)日:2012-10-11

    申请号:US13437139

    申请日:2012-04-02

    CPC classification number: H04B10/548 H04B10/60 H04L27/2697

    Abstract: An energy efficient OFDM transceiver includes a transmitter using a decision processor to control first internal elements that can be operated in parallel and can be selectively powered off or hibernated, and a receiver using a processing decision element to control second internal elements that can be operated in parallel and can be selectively powered off or hibernated, wherein control of the first and second internal elements enables tracking status of network traffic, adjustment of OFDM bandwidth based on a traffic decision and selectively powering off or hibernating parallel ones of the first and second internal elements.

    Abstract translation: 节能OFDM收发器包括使用决策处理器来控制可以并行操作并且可以选择性地关闭或休眠的第一内部元件的发射机,以及使用处理决策元件来控制可以在 并联并且可以选择性地关闭或休眠,其中第一和第二内部元件的控制使得能够跟踪网络业务的状态,基于业务决策来调整OFDM带宽,并且选择性地关闭或休眠第一和第二内部元件中的并行 。

    FOUR-DIMENSIONAL OPTICAL MULTIBAND-OFDM FOR BEYOND 1.4TB/S SERIAL OPTICAL TRANSMISSION
    106.
    发明申请
    FOUR-DIMENSIONAL OPTICAL MULTIBAND-OFDM FOR BEYOND 1.4TB/S SERIAL OPTICAL TRANSMISSION 有权
    用于1.4TB / S串行光传输的四维光学多通道OFDM

    公开(公告)号:US20120257895A1

    公开(公告)日:2012-10-11

    申请号:US13251214

    申请日:2011-10-01

    Abstract: Systems and methods are disclosed to perform four-dimensional optical multiband OFDM communication by organizing an N-dimensional (ND) signal constellation points as a signal matrix; performing 2D-inverse FFT and 2D-FFT to perform modulation and demodulation, respectively; and applying both orthogonal polarizations in the OFDM communication to deal with chromatic dispersion, PMD and PDL effects, and multidimensional signal constellation to improve optical signal-to-noise ratio (OSNR) sensitivity.

    Abstract translation: 公开了通过组织N维(ND)信号星座点作为信号矩阵来执行四维光多频带OFDM通信的系统和方法; 分别执行2D反FFT和2D-FFT以进行调制和解调; 并且在OFDM通信中应用正交偏振以处理色散,PMD和PDL效应以及多维信号星座以提高光信噪比(OSNR)灵敏度。

    Single wavelength source-free OFDMA-PON communication systems and methods
    108.
    发明授权
    Single wavelength source-free OFDMA-PON communication systems and methods 有权
    单波长无源OFDMA-PON通信系统和方法

    公开(公告)号:US08233797B2

    公开(公告)日:2012-07-31

    申请号:US12545159

    申请日:2009-08-21

    Abstract: Methods and systems for processing communication signals in an Orthogonal Frequency Division Multiple Access (OFDMA)-Passive Optical Network (PON) are disclosed. An optical carrier at a wavelength generated at an optical line terminal (OLT) may be reused by optical network units (ONUs) in the network for upstream transmission of data signals to the OLT. In addition, each ONU may perform carrier suppression to avoid broadband beating noise resulting from the simultaneous transmission of upstream data signals on the same wavelength. Further, the optical source at the OLT used to generate the optical carrier may be reused as a local oscillator for coherent detection of received upstream signals to minimize any frequency offsets.

    Abstract translation: 公开了在正交频分多址(OFDMA)无源光网络(PON)中处理通信信号的方法和系统。 在光线路终端(OLT)处生成的波长的光载波可以由网络中的光网络单元(ONU)重新使用,用于向OLT发送数据信号。 此外,每个ONU可以执行载波抑制以避免由于在相同波长上的上行数据信号的同时传输而导致的宽带打扰噪声。 此外,用于生成光载波的OLT处的光源可以重新用作本地振荡器,用于相干检测接收到的上行信号,以使任何频率偏移最小化。

    Integrated equalizer and Michelson interferometer structure for inter-symbol interference-suppressed colorless DPSK demodulation
    109.
    发明授权
    Integrated equalizer and Michelson interferometer structure for inter-symbol interference-suppressed colorless DPSK demodulation 有权
    集成均衡器和迈克尔逊干涉仪结构,用于符号间干扰抑制无色DPSK解调

    公开(公告)号:US08218977B2

    公开(公告)日:2012-07-10

    申请号:US12731869

    申请日:2010-03-25

    CPC classification number: H04B10/677

    Abstract: An optical device includes an interferometer for a received optical differential phase shift keying DPSK signal, and an equalizer integrated with the interferometer in a manner for reducing from optical filtering effects an interference by signal bits of the DPSK signal with signal bits of a contiguous DPSK signal. The interferometer is a Michelson delay interferometer type, but can also be a Mach-Zehnder delay interferometer type on fiber, waveguide or other optical structure. The equalizer is a Fabry-Perot type equalizer, but can be a ring resonator type or a fiber based equalizer.

    Abstract translation: 光学装置包括用于接收的光学差分相移键控DPSK信号的干涉仪,以及与干涉仪集成的均衡器,以减少光学滤波的方式,利用DPSK信号的信号位与相邻DPSK信号的信号位的干扰 。 干涉仪是迈克尔逊延迟干涉仪型号,但也可以是光纤,波导或其他光学结构上的马赫 - 曾德延迟干涉仪。 均衡器是法布里 - 珀罗型均衡器,但可以是环形谐振器型或基于光纤的均衡器。

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