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1. 发明申请

US20090245810A1 Dynamic Signal Equalization in Optical Transmission Systems 审中-公开
标题翻译：光传输系统中的动态信号均衡
公开(公告)号：US20090245810A1
公开(公告)日：2009-10-01
申请号：US12054763
申请日：2008-03-25
申请人： Yue-Kai Huang , Ting Wang , Lei Xu
发明人： Yue-Kai Huang , Ting Wang , Lei Xu
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/25137 , H04B10/2575
摘要： In an optical transmission system, data is transmitted via an optical beam modulated with an arbitrary waveform. The optical beam is transmitted through at least one optical element. Transmission through at least one optical element degrades the signal quality of the initial optical beam. The signal characteristics of at least one optical beam at the output of least one optical element are used as feedback to shape the arbitrary waveform to improve signal characteristics. An arbitrary waveform may be used to compensate signal degradation caused by a multiplexer/demultiplexer in a wavelength division multiplex system.
摘要翻译：在光传输系统中，通过任意波形调制的光束发送数据。光束通过至少一个光学元件透射。通过至少一个光学元件的透射降低了初始光束的信号质量。在至少一个光学元件的输出处的至少一个光束的信号特性被用作反馈以形成任意波形以改善信号特性。可以使用任意波形来补偿由波分多路复用系统中的多路复用器/解复用器引起的信号劣化。

2. 发明授权

US08595585B2 Reverse concatenated encoding and decoding 有权
标题翻译：反向级联编码和解码
公开(公告)号：US08595585B2
公开(公告)日：2013-11-26
申请号：US13116249
申请日：2011-05-26
申请人： Ivan B. Djordjevic , Lei Xu , Ting Wang
发明人： Ivan B. Djordjevic , Lei Xu , Ting Wang
IPC分类号： H03M13/00 , G06F11/00
CPC分类号： H03M13/2963 , H03M13/1102 , H03M13/1117 , H03M13/136 , H03M13/152 , H03M13/6331 , H04L1/005 , H04L1/0057
摘要： Methods and systems for transmitting and receiving data include reverse concatenated encoding and decoding. Reverse concatenated decoding includes inner decoding the encoded stream with an inner decoder that uses a low-complexity linear-block code to produce an inner-decoder output stream, outer decoding the inner-decoder output stream with an outer decoder that uses a low-density parity-check code to produce an information stream, and iterating extrinsic bit reliabilities from the outer decoding for use in subsequent inner decoding to improve decoding performance.
摘要翻译：发送和接收数据的方法和系统包括反向级联编码和解码。反向级联解码包括使用内部解码器对编码流进行内部解码，内部解码器使用低复杂度线性块码来产生内部解码器输出流，使用外部解码器对内部解码器输出流进行外部解码，外部解码器使用低密度奇偶校验码产生信息流，以及从外部解码中迭代外部位可靠性，用于随后的内部解码以提高解码性能。

3. 发明授权

US08589755B2 Reduced-complexity LDPC decoding 有权
标题翻译：降低复杂度的LDPC解码
公开(公告)号：US08589755B2
公开(公告)日：2013-11-19
申请号：US13114793
申请日：2011-05-24
申请人： Ivan B. Djordjevic , Lei Xu , Ting Wang
发明人： Ivan B. Djordjevic , Lei Xu , Ting Wang
IPC分类号： H03M13/00 , G06F11/00
CPC分类号： H03M13/1117 , H03M13/6502 , H03M13/658 , H04L1/0047 , H04L1/0054 , H04L1/0057 , H04L1/0071
摘要： Methods and systems for reduced-complexity decoding of low-density parity-check (LDPC) information. An encoded input stream is received. The received stream is decoded with one or more reduced-complexity min-sum or a posteriori probability LDPC decoders. A v-node update rule in the reduced complexity decoder is omitted.
摘要翻译：用于低密度奇偶校验（LDPC）信息的降低复杂度解码的方法和系统。接收编码的输入流。所接收的流被解码为一个或多个复杂度较低的最小和或后验概率LDPC解码器。省略了复杂度降低的解码器中的v节点更新规则。

4. 发明授权

US08386879B2 GLDPC encoding with Reed-Muller component codes for optical communications 有权
标题翻译：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
申请人： Ivan B Djordjevic , Lei Xu , Ting Wang , Milorad Cvijetic
发明人： Ivan B Djordjevic , Lei Xu , Ting Wang , Milorad Cvijetic
IPC分类号： G06F11/00
CPC分类号： H03M13/1174 , H03M13/136
摘要： 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.
摘要翻译：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。

5. 发明申请

US20120321318A1 CARRIER AND SUBCARRIER HOPPING FOR OPTICAL OFDM SECURITY 有权
标题翻译：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
申请人： Lei Xu , Dayou Qian , Ting Wang
发明人： Lei Xu , Dayou Qian , Ting Wang
IPC分类号： H04J14/00
CPC分类号： H04L5/0012 , H04L5/0008 , H04L27/2642 , H04L27/2647
摘要： 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.
摘要翻译：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。

6. 发明申请

US20120321311A1 Coherent Interleaved Polarization-Multiplexing Optical Communications with Single IQ Modulator 审中-公开
标题翻译：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
申请人： Shaoliang Zhang , Fatih Yaman , Lei Xu , Ting Wang , Yoshihisa Inada , Takaaki Ogata , Yasuhiro Aoki
发明人： Shaoliang Zhang , Fatih Yaman , Lei Xu , Ting Wang , Yoshihisa Inada , Takaaki Ogata , Yasuhiro Aoki
IPC分类号： H04J14/06
CPC分类号： H04B10/616 , H04B10/5051 , H04B10/532 , H04B10/5561 , H04J14/06
摘要： 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.
摘要翻译：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。

7. 发明申请

US20120257896A1 CODED MULTIDIMENSIONAL PULSE AMPLITUDE MODULATION FOR ULTRA-HIGH-SPEED OPTICAL TRANSPORT 有权
标题翻译：用于超高速光学传输的编码多维脉冲幅度调制
公开(公告)号：US20120257896A1
公开(公告)日：2012-10-11
申请号：US13251218
申请日：2011-10-01
申请人： Ivan B. Djordjevic , Lei Xu , Ting Wang
发明人： Ivan B. Djordjevic , Lei Xu , Ting Wang
IPC分类号： H04J14/00 , H04J14/06
CPC分类号： H04L27/2634 , H04B10/548 , H04B10/611 , H04B10/612 , H04B10/614 , H04L25/4902 , H04L27/2697
摘要： Systems and methods are disclosed to provide optical communication by using subcarriers as individual bases functions, obtaining signal constellation points of an N-dimensional pulse amplitude modulation (ND-PAM) constellation diagram as an N-dimensional Cartesian product of a one-dimensional PAM; and transmitting the N-dimensional signal constellation point over all N orthogonal subcarriers serving as individual bases functions.
摘要翻译：公开了通过使用子载波作为单个基础功能来提供光通信的系统和方法，获得作为一维PAM的N维笛卡尔乘积的N维脉冲幅度调制（ND-PAM）星座图的信号星座点; 并且在用作各个基本功能的所有N个正交子载波上发送N维信号星座点。

8. 发明授权

US08234549B2 Simultaneous PMD compensation and chromatic dispersion compensation using LDPC coded OFDM 有权
标题翻译：使用LDPC编码OFDM同时进行PMD补偿和色散补偿
公开(公告)号：US08234549B2
公开(公告)日：2012-07-31
申请号：US12043348
申请日：2008-03-06
申请人： Ivan Djordjevic , Ting Wang , Lei Xu , Milorad Cvijetic
发明人： Ivan Djordjevic , Ting Wang , Lei Xu , Milorad Cvijetic
IPC分类号： H03M13/03 , H03M13/00
CPC分类号： H03M13/2957 , H03M13/1102 , H03M13/1111 , H03M13/6325 , H04B10/2513 , H04B10/2569 , H04B10/697
摘要： A method includes estimating quadrature amplitude modulated QAM symbols in an LDPC encoded OFDM signal for transmission, performing channel estimation by training sequence to determine channel coefficients in reception of the LDPC encoded OFDM signal; and obtaining channel information detection and decoding of the LDPC encoded signal.
摘要翻译：一种方法包括估计用于传输的LDPC编码OFDM信号中的正交幅度调制QAM符号，通过训练序列执行信道估计，以确定在接收LDPC编码的OFDM信号中的信道系数; 并获得LDPC编码信号的信道信息检测和解码。

9. 发明授权

US08090271B2 Differential delay receiver using cross-polarization interferometer for PolMux-DPSK system 有权
标题翻译：差分延迟接收机采用PolMux-DPSK系统的交叉偏振干涉仪
公开(公告)号：US08090271B2
公开(公告)日：2012-01-03
申请号：US12236694
申请日：2008-09-24
申请人： Dayou Qian , Ting Wang , Lei Xu , Philip Nan Ji
发明人： Dayou Qian , Ting Wang , Lei Xu , Philip Nan Ji
IPC分类号： H04B10/06
CPC分类号： H04J14/06
摘要： A differential delay detection system and method includes an optical splitter to split an incoming optical signal between a first path and a second path. The first path includes a cross-polarization interferometer configured to separately generate polarization independent outputs using split paths and to generate cross-polarization interference outputs, and a polarization demultiplexer configured to combine the polarization independent outputs and the cross-polarization interference outputs from the cross-polarization interferometer with updated coefficients received from the second path to remove the cross-polarization mixed signals. The second path includes a training signal receiver configured to compute the updated coefficients and output the updated coefficients to the polarization demultiplexer.
摘要翻译：差分延迟检测系统和方法包括：光分路器，用于在第一路径和第二路径之间分离输入光信号。第一路径包括交叉偏振干涉仪，其被配置为使用分离路径分开产生偏振无关的输出并产生交叉极化干扰输出;以及偏振解复用器，被配置为组合来自交叉偏振干涉输出的偏振无关输出和交叉极化干扰输出，偏振干涉仪具有从第二路径接收的更新的系数以去除交叉极化混合信号。第二路径包括被配置为计算更新的系数并将更新的系数输出到偏振解复用器的训练信号接收器。

10. 发明授权

US08064774B2 High frequency optical millimeter-wave generation and wavelength reuse 有权
标题翻译：高频光学毫米波发生和波长重用
公开(公告)号：US08064774B2
公开(公告)日：2011-11-22
申请号：US12117347
申请日：2008-05-08
申请人： Jianjun Yu , Dayou Qian , Lei Xu , Ting Wang
发明人： Jianjun Yu , Dayou Qian , Lei Xu , Ting Wang
IPC分类号： H04B10/00
CPC分类号： H04B10/25758
摘要： A method includes generating an optical millimeter wave signal for modulation of a first data signal, and deriving from the generated optical millimeter wave signal a subsequent light source for modulation of a second data signal. More specifically the generating includes modulating a light wave to a multiple of a frequency of an oscillating signal. Alternatively, the generating includes modulating a data signal mixed with an oscillating signal to a multiple of a frequency of the oscillating signal. The deriving includes modulating a frequency component filtered from a data modulation of the generated optical millimeter wave signal.
摘要翻译：一种方法包括产生用于调制第一数据信号的光学毫米波信号，以及从所生成的光学毫米波信号中导出用于调制第二数据信号的后续光源。更具体地，生成包括将光波调制到振荡信号的频率的倍数。或者，生成包括将与振荡信号混合的数据信号调制为振荡信号的频率的倍数。导出包括调制从产生的光学毫米波信号的数据调制滤波的频率分量。

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