GLDPC encoding with Reed-Muller component codes for optical communications
    151.
    发明授权
    GLDPC encoding with Reed-Muller component codes for optical communications 有权
    用于光通信的Reed-Muller组件代码的GLDPC编码

    公开(公告)号:US08386879B2

    公开(公告)日:2013-02-26

    申请号:US12189759

    申请日:2008-08-11

    CPC classification number: H03M13/1174 H03M13/136

    Abstract: A method of encoding for optical transmission of information includes encoding information with a generalized low-density parity-check (GLDPC) code for providing coding gains, and constructing the GLDPC code with a Reed-Muller RM code as a component code, the component code being decodable using a maximum posterior probability (MAP) decoding. In a preferred embodiment, the GLDPC code includes a codeword length of substantially 4096, an information word length of substantially 3201, a lower-bound on minimum distance of substantially greater than or equal to 16, a code rate of substantially 0.78 and the RM component code includes an order of substantially 4 and an r parameter of substantially 6.

    Abstract translation: 用于信息的光传输的编码方法包括使用用于提供编码增益的广义低密度奇偶校验(GLDPC)码的编码信息,以及用作为分量代码的里德 - 穆勒RM码构建GLDPC码, 使用最大后验概率(MAP)解码来解码。 在优选实施例中,GLDPC代码包括基本上为4096的码字长度,基本为3201的信息字长度,基本上大于或等于16的最小距离的下限,码率基本上为0.78,并且RM分量 代码包括基本为4的顺序和基本为6的r参数。

    CARRIER AND SUBCARRIER HOPPING FOR OPTICAL OFDM SECURITY
    154.
    发明申请
    CARRIER AND SUBCARRIER HOPPING FOR OPTICAL OFDM SECURITY 有权
    携带器和散热器用于光学OFDM安全

    公开(公告)号:US20120321318A1

    公开(公告)日:2012-12-20

    申请号:US13478892

    申请日:2012-05-23

    CPC classification number: H04L5/0012 H04L5/0008 H04L27/2642 H04L27/2647

    Abstract: Methods and systems for secure communication include assigning data streams to respective orthogonal sub-carriers according to random number information at a transmitter. The data streams are modulated onto the respective orthogonal sub-carriers before the orthogonal sub-carriers are transmitted. The random number information is transmitted on a second medium, separate from the transmission medium. The orthogonal sub-carriers are received from the transmission medium at a receiver, while the random number information is received from the second medium at the receiver. The orthogonal sub-carriers are associated with data streams using the random number information and demodulated to produce data for the associated data stream.

    Abstract translation: 用于安全通信的方法和系统包括根据发射机处的随机数信息将数据流分配给各个正交子载波。 在发送正交子载波之前,将数据流调制到各个正交子载波上。 在与传输介质分离的第二介质上发送随机数信息。 在接收机处从传输介质接收正交子载波,而在接收机处从第二媒体接收随机数信息。 正交子载波与使用随机数信息的数据流相关联并被解调以产生用于相关联的数据流的数据。

    Coherent Interleaved Polarization-Multiplexing Optical Communications with Single IQ Modulator
    155.
    发明申请
    Coherent Interleaved Polarization-Multiplexing Optical Communications with Single IQ Modulator 审中-公开
    具有单IQ调制器的相干交错极化复用光通信

    公开(公告)号:US20120321311A1

    公开(公告)日:2012-12-20

    申请号:US13523045

    申请日:2012-06-14

    Abstract: An inventive method for coherent interleaved polarization-multiplexing PolMux optical communications with a single IQ modulator includes modulating a light source to generate a 50% return-to-zero RZ signal pulse at a frequency Rs, driving a single IQ modulator with inphase I and quadrature phase Q data at a bit rate of sais Rs to introduce phase modulation on said 50% RZ signal pulse to produce a QPSK pulse signal with all symbols being in a same polarization state without any time overlapping; and polarization modulating said QPSK signal to alternatively convert said QPSK signal into two orthogonal polarizations states enabling an interleaving PolMux signal with a symbol rate of Rs/2.

    Abstract translation: 用于具有单个IQ调制器的相干交错偏振复用PolMux光通信的创新方法包括调制光源以产生频率为Rs的50%归零RZ信号脉冲,以同相I和正交驱动单个IQ调制器 相位Q数据以sais的比特率在所述50%RZ信号脉冲上引入相位调制以产生QPSK脉冲信号,所有符号处于相同的极化状态,没有任何时间重叠; 以及对所述QPSK信号进行极化调制,以将所述QPSK信号交替地转换为使得能够以Rs / 2的符号率进行交织的PolMux信号的两个正交极化状态。

    OPTICAL-LAYER TRAFFIC GROOMING AT AN OFDM SUBCARRIER LEVEL WITH PHOTODETECTION CONVERSION OF AN INPUT OPTICAL OFDM TO AN ELECTRICAL SIGNAL
    158.
    发明申请
    OPTICAL-LAYER TRAFFIC GROOMING AT AN OFDM SUBCARRIER LEVEL WITH PHOTODETECTION CONVERSION OF AN INPUT OPTICAL OFDM TO AN ELECTRICAL SIGNAL 有权
    在具有用于输入光学OFDM到电信号的光电转换的OFDM SUBCARRIER级的光学层传输

    公开(公告)号:US20120213523A1

    公开(公告)日:2012-08-23

    申请号:US13402418

    申请日:2012-02-22

    CPC classification number: H04J14/0212 H04J14/0298

    Abstract: A method for optical layer traffic grooming includes receiving at least two optical input signals into respective optical receivers, each optical receiver having a photodetector for converting the respective optical input signal into a respective electrical signal; a grooming processor responsive to the electrical signals, the grooming processor being a radio frequency RF processor for processing the electrical signals at a subcarrier level to produce an RF orthogonal frequency division multiplexing signal OFDM signal; and modulating the groomed RF OFDM signal at a transmitter for conversion of the groomed RF OFDM into an optical signal.

    Abstract translation: 一种用于光层流量梳理的方法包括:将至少两个光输入信号接收到相应的光接收器中,每个光接收器具有用于将相应的光输入信号转换成相应的电信号的光电检测器; 一个整理处理器,响应于电信号,整修处理器是一个射频RF处理器,用于处理子载波电平的电信号,以产生一个RF正交频分复用信号OFDM信号; 以及在发射机处调制经修整的RF OFDM信号,以将整修的RF OFDM转换成光信号。

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