PASSIVE OPTICAL NETWORK SYSTEM EMPLOYING SUB-CARRIER MULTIPLEXING AND ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS MODULATION SCHEMES
    72.
    发明申请
    PASSIVE OPTICAL NETWORK SYSTEM EMPLOYING SUB-CARRIER MULTIPLEXING AND ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS MODULATION SCHEMES 有权
    被动光网络系统采用子载波多路复用和正交频分多址访问调制方案

    公开(公告)号:US20100028002A1

    公开(公告)日:2010-02-04

    申请号:US12184781

    申请日:2008-08-01

    Abstract: Implementations of the present principles include methods, systems and apparatuses for transmitting data through a sub-carrier multiplexing and orthogonal frequency-division multiple access passive optical network. In accordance with aspects of the present principles, a plurality of optical network units are assigned electrical carrier frequency bandwidths that are narrower than a system capacity bandwidth. Modulation of optical waves transmitted between an optical line terminal and each optical network unit is conducted on different orthogonal sub-carrier frequencies within the assigned bandwidths such that sampling of said orthogonal sub-carrier frequencies is limited to the assigned electrical carrier frequency bandwidths. The waves are thereafter received and demodulated for the extraction of data.

    Abstract translation: 本原理的实现包括通过副载波复用和正交频分多址无源光网络传输数据的方法,系统和装置。 根据本原理的方面,多个光网络单元分配比系统容量带宽窄的电载波频率带宽。 在光线路终端和每个光网络单元之间传输的光波的调制在所分配的带宽内的不同正交子载波频率上进行,使得所述正交子载波频率的采样被限制为所分配的电载波频率带宽。 之后接收和解调波以提取数据。

    MULTIDIMENSIONAL TURBO PRODUCT CODES AND GENERALIZED LOW-DENSITY PARITY-CHECK CODES WITH COMPONENT REED-SOLOMON CODES FOR OPTICAL TRANSMISSION
    73.
    发明申请
    MULTIDIMENSIONAL TURBO PRODUCT CODES AND GENERALIZED LOW-DENSITY PARITY-CHECK CODES WITH COMPONENT REED-SOLOMON CODES FOR OPTICAL TRANSMISSION 有权
    多组份涡轮产品代码和通用低密度奇偶校验码与组件光电代码进行光传输

    公开(公告)号:US20090282314A1

    公开(公告)日:2009-11-12

    申请号:US12392374

    申请日:2009-02-25

    CPC classification number: H04L1/0066 H03M13/296 H04L1/005

    Abstract: A transmitter, a receiver, and corresponding methods are provided. The transmitter includes encoders configured to encode source bit streams from L information sources into bytes of codewords. Each encoder includes different (n, k) multidimensional turbo-product codes of code rate R=k/n, where k is a number of information bytes, and n is code word length. The encoders operate in at least two phases. A first phase involves operating ky column-encoders in parallel on kx bytes per column to generate the code words for a current dimension. A second phase involves operating nx row-encoders in parallel on ky memory locations per rows to generate the code words for the current dimension. The first and second phases are repeated for remaining layers of the current dimension and layers of other dimensions.

    Abstract translation: 提供发射机,接收机和相应的方法。 发射机包括被配置为将来自L个信息源的源比特流编码成码字的字节的编码器。 每个编码器包括码率R = k / n的不同(n,k)多维turbo乘积码,其中k是信息字节数,n是码字长度。 编码器至少运行两个阶段。 第一阶段涉及每列以kx字节并行运行ky列编码器,以生成当前维度的代码字。 第二阶段涉及在每行每个ky个存储单元上并行运行nx行编码器,以生成当前维度的代码字。 对于当前尺寸和其他尺寸的层的剩余层重复第一和第二阶段。

    GLDPC ENCODING WITH REED-MULLER COMPONENT CODES FOR OPTICAL COMMUNICATIONS
    74.
    发明申请
    GLDPC ENCODING WITH REED-MULLER COMPONENT CODES FOR OPTICAL COMMUNICATIONS 有权
    GLDPC编码用于光通信的冗余组件代码

    公开(公告)号:US20090199065A1

    公开(公告)日:2009-08-06

    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。

    Orthogonal Frequency Division Multiple Access Based Virtual Passive Optical Network (VPON)
    75.
    发明申请
    Orthogonal Frequency Division Multiple Access Based Virtual Passive Optical Network (VPON) 审中-公开
    基于正交频分多址的虚拟无源光网络(VPON)

    公开(公告)号:US20090092394A1

    公开(公告)日:2009-04-09

    申请号:US12207664

    申请日:2008-09-10

    Applicant: Wei Wei Ting Wang

    Inventor: Wei Wei Ting Wang

    CPC classification number: H04J14/0282

    Abstract: Various types of passive optical networks operate simultaneously in one passive optical network system comprising an optical line terminal, a passive remote node, and multiple optical network units. Downstream data is orthogonal frequency division multiplexed onto a single wavelength optical carrier transmitted on a primary downstream optical beam from the optical line terminal to a splitter in the passive remote node. The primary downstream optical beam is split into multiple secondary downstream optical beams; each is transmitted to a specific optical network unit. Upstream data is orthogonal frequency division multiplexed onto a single wavelength optical carrier transmitted on a secondary upstream optical beam from each optical network unit to a coupler in the passive remote node. The upstream wavelength for each optical network unit is different. The wavelength division multiplexed optical beam is transmitted from the passive remote node to a parallel signal detector in the optical line terminal.

    Abstract translation: 在包括光线路终端,被动远程节点和多个光网络单元的一个无源光网络系统中,各种类型的无源光网络同时工作。 下行数据被正交频分复用到在从光线路终端到被动远程节点中的分路器的主下游光束上传输的单个波长光载波上。 主下游光束被分成多个次级下游光束; 每个被发送到特定光网络单元。 上行数据被正交频分复用到在从每个光网络单元到被动远程节点中的耦合器的第二上行光束上传输的单个波长光载波上。 每个光网络单元的上行波长不同。 波分复用光束从无源远端节点传输到光线路终端中的并行信号检测器。

    VIRTUAL I/Q MULTIPLEXING IN OPTICAL CODE DIVISION FOR SECURE LOCAL AREA OFDM
    76.
    发明申请
    VIRTUAL I/Q MULTIPLEXING IN OPTICAL CODE DIVISION FOR SECURE LOCAL AREA OFDM 审中-公开
    用于安全的本地区域的光学代码段的虚拟I / Q多路复用OFDM

    公开(公告)号:US20090092392A1

    公开(公告)日:2009-04-09

    申请号:US12181656

    申请日:2008-07-29

    Abstract: A system and method for virtual I/Q multiplexing in optical code division for secure local area OFDM includes encoding a wide spectrum signal, which includes a plurality of spectral bins, to provide a complementary spectral coding over at least two channels. The complementary spectral codings are intensity modulated with opposite polarity for each channel. An M-ary Orthogonal Frequency Division Multiplexing (OFDM) signal is modulated using the complementary spectral codings of opposite polarity with separate complementary spectral encoded (CSE) optical codes to provide a virtual in-phase (I) and quadrature (Q) (I/Q) multiplexing for the OFDM signal.

    Abstract translation: 用于安全局域OFDM的光码分区中的虚拟I / Q复用的系统和方法包括对包含多个频谱区的宽频谱信号进行编码,以在至少两个信道上提供互补的频谱编码。 对于每个通道,互补的频谱编码是以相反极性强度调制的。 使用具有相反极性的互补频谱编码,使用单独的互补频谱编码(CSE)光码来调制M正交频分复用(OFDM)信号,以提供虚拟同相(I)和正交(Q)(I / Q)复用为OFDM信号。

    Inter-Symbol Interference-Suppressed Colorless DPSK Demodulation
    78.
    发明申请
    Inter-Symbol Interference-Suppressed Colorless DPSK Demodulation 审中-公开
    符号间干扰抑制无色DPSK解调

    公开(公告)号:US20080240736A1

    公开(公告)日:2008-10-02

    申请号:US11692432

    申请日:2007-03-28

    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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