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    Method for performing soft decision decoding of Euclidean space Reed-Muller codes
    1.
    发明授权
    Method for performing soft decision decoding of Euclidean space Reed-Muller codes 有权
    用于执行欧氏空间Reed-Muller码的软判决解码的方法

    公开(公告)号：US08245116B2

    公开(公告)日：2012-08-14

    申请号：US13007435

    申请日：2011-01-14

    申请人： Philip Orlik ,  Raymond Yim ,  Kieran Parsons ,  Vahid Tarokh ,  Jinyun Zhang

    发明人： Philip Orlik ,  Raymond Yim ,  Kieran Parsons ,  Vahid Tarokh ,  Jinyun Zhang

    IPC分类号： H03M13/00

    CPC分类号： H03M13/136 ,  H03M13/3905 ,  H03M13/45 ,  H03M13/458 ,  H04L1/0054

    摘要： Soft decision decoding of a codeword of a Reed-Muller (RM) code by selecting an optimal decomposition variable i using a likelihood calculation. A code RM(r, m) is expressed as {(u, uv)|uεRM(r, m−1) and vεRM(r−1, m−1)}, where uv denotes a component-wise multiplication of u and v, and (u, uv)=(r1, r2). A receive codeword is separated into r1=u and r2=uv based on the optimal decomposition variable, and r2 is decoded according to the optimal decomposition variable, using a RM(r−1, m−1) decoder to obtain a decoded v and a first set of decoded bits. The decoded v is combined with r1 using (r1+r2v)/2, and (r1+r2v)/2 is decoded using a RM(r, m−1) decoder to obtain a decoded u and a second set of decoded bits.

    摘要翻译： 通过使用似然率计算选择最优分解变量i，对Reed-Muller（RM）码的码字进行软判决解码。 代码RM（r，m）表示为{（u，uv）| u＆egr; RM（r，m-1）和v＆egr; RM（r-1，m-1）}，其中uv表示分量 u和v的乘法，（u，uv）=（r1，r2）。 基于最优分解变量将接收码字分为r1 = u和r2 = uv，并使用RM（r-1，m-1）解码器根据最优分解变量对r2进行解码，以获得解码的v和 第一组解码位。 使用（r1 + r2v）/ 2将解码的v与r1组合，并且使用RM（r，m-1）解码器对（r1 + r2v）/ 2进行解码，以获得解码的u和第二组解码比特。

    Method for energy efficient reoptimization of optical networks
    2.
    发明授权
    Method for energy efficient reoptimization of optical networks 有权
    光网络能效优化方法

    公开(公告)号：US08891967B2

    公开(公告)日：2014-11-18

    申请号：US13218044

    申请日：2011-08-25

    申请人： Kieran Parsons ,  Philip Orlik

    发明人： Kieran Parsons ,  Philip Orlik

    IPC分类号： H04J14/00 ,  H04Q11/00

    CPC分类号： H04Q11/0062 ,  H04Q2011/0086

    摘要： In optical networks new links are added between nodes over time to satisfy the increasing traffic demands of the network. Existing links are normally not changed, resulting in a network that does not have the lowest energy consumption. A method provides a way to reduce the energy consumption of the overall network while supporting the required traffic demands at all times. The network includes a multiple source nodes, and multiple destination nodes. The network is represented by a graph of nodes connected by edges, wherein each node represents an optical network element and each edge represents a path connecting two optical network elements. Each edge is labeled with a demand. The non-bridge edge with a lowest demand is removed from the graph, and the lowest demand is added to the non-bridge edge with a highest demand. These steps are repeated until a termination condition is reached.

    摘要翻译： 在光网络中，随着时间的推移，节点间增加了新的链路，以满足网络流量的不断增长。 现有链接通常不会更改，导致网络的能耗最低。 一种方法提供了一种在始终支持所需的交通需求的同时降低总体网络的能量消耗的方法。 该网络包括多个源节点和多个目的节点。 网络由通过边缘连接的节点的图表示，其中每个节点表示光网络元件，并且每个边缘表示连接两个光网络元件的路径。 每个边缘都贴有需求。 具有最低需求的非桥接边缘从图中去除，最低需求被添加到具有最高需求的非桥接边缘。 重复这些步骤直到达到终止条件。

    MEthod for Energy Efficient Reoptimization of Optical Networks
    3.
    发明申请
    MEthod for Energy Efficient Reoptimization of Optical Networks 有权
    光网络节能优化的正面

    公开(公告)号：US20130051797A1

    公开(公告)日：2013-02-28

    申请号：US13218044

    申请日：2011-08-25

    申请人： Kieran Parsons ,  Philip Orlik

    发明人： Kieran Parsons ,  Philip Orlik

    IPC分类号： H04J14/00

    CPC分类号： H04Q11/0062 ,  H04Q2011/0086

    摘要： In optical networks new links are added between nodes over time to satisfy the increasing traffic demands of the network. Existing links are normally not changed, resulting in a network that does not have the lowest energy consumption. A method provides a way to reduce the energy consumption of the overall network while supporting the required traffic demands at all times. The network includes a multiple source nodes, and multiple destination nodes. The network is represented by a graph of nodes connected by edges, wherein each node represents an optical network element and each edge represents a path connecting two optical network elements. Each edge is labeled with a demand. The non-bridge edge with a lowest demand is removed from the graph, and the lowest demand is added to the non-bridge edge with a highest demand. These steps are repeated until a termination condition is reached.

    摘要翻译： 在光网络中，随着时间的推移，节点间增加了新的链路，以满足网络流量的不断增长。 现有链接通常不会更改，导致网络的能耗最低。 一种方法提供了一种在始终支持所需的交通需求的同时降低总体网络的能量消耗的方法。 该网络包括多个源节点和多个目的节点。 网络由通过边缘连接的节点的图表示，其中每个节点表示光网络元件，并且每个边缘表示连接两个光网络元件的路径。 每个边缘都贴有需求。 具有最低需求的非桥接边缘从图中去除，最低需求被添加到具有最高需求的非桥接边缘。 重复这些步骤直到达到终止条件。

    METHOD FOR PERFORMING SOFT DECISION DECODING OF EUCLIDEAN SPACE REED-MULLER CODES
    4.
    发明申请
    METHOD FOR PERFORMING SOFT DECISION DECODING OF EUCLIDEAN SPACE REED-MULLER CODES 有权
    执行电子空间雷达编码软判决解码的方法

    公开(公告)号：US20120185755A1

    公开(公告)日：2012-07-19

    申请号：US13007435

    申请日：2011-01-14

    申请人： Philip Orlik ,  Raymond Yim ,  Kieran Parsons ,  Vahid Tarokh ,  Jinyun Zhang

    发明人： Philip Orlik ,  Raymond Yim ,  Kieran Parsons ,  Vahid Tarokh ,  Jinyun Zhang

    IPC分类号： H03M13/07 ,  G06F11/10

    CPC分类号： H03M13/136 ,  H03M13/3905 ,  H03M13/45 ,  H03M13/458 ,  H04L1/0054

    摘要： Soft decision decoding of a codeword of a Reed-Muller (RM) code byselecting an optimal decomposition variable i using a likelihood calculation. A code RM(r, m) is expressed as {(u, uv)|uεRM(r, m−1) and vεRM(r−1, m−1)) where uv denotes a component-wise multiplication of u and v, and (u, uv)=(r1, r2). A receive codeword is separated into r1=u and r2=uv based on the optimal decomposition variable, and r2 is decoded according to the optimal decomposition variable, using a RM(r−1, m−1) decoder to obtain a decoded v and a first set of decoded bits. The decoded v is combined with r1 using (r1+r2v)/2, and(r1+r2V)/2 is decoded using a RM(r, m−1) decoder to obtain a decoded u and a second set of decoded bits.

    摘要翻译： 通过使用似然率计算选择最优分解变量i，对Reed-Muller（RM）码的码字进行软判决解码。 代码RM（r，m）表示为{（u，uv）| u＆egr; RM（r，m-1）和v＆egr; RM（r-1，m-1）），其中uv表示分量乘法 的u和v，（u，uv）=（r1，r2）。 基于最优分解变量将接收码字分为r1 = u和r2 = uv，并使用RM（r-1，m-1）解码器根据最优分解变量对r2进行解码，以获得解码的v和 第一组解码位。 使用（r1 + r2v）/ 2将解码的v与r1组合，并且使用RM（r，m-1）解码器对（r1 + r2V）/ 2进行解码，以获得解码的u和第二组解码比特。

    Methods for Determining Energy Efficient Optical Routes
    5.
    发明申请
    Methods for Determining Energy Efficient Optical Routes 有权
    确定节能光路的方法

    公开(公告)号：US20120170934A1

    公开(公告)日：2012-07-05

    申请号：US12984977

    申请日：2011-01-05

    申请人： Raymond Yim ,  Kieran Parsons

    发明人： Raymond Yim ,  Kieran Parsons

    IPC分类号： H04J14/00

    CPC分类号： H04L49/357 ,  H04J14/0206 ,  H04J14/0254 ,  H04J14/0267 ,  H04J14/0268 ,  H04J14/0284 ,  H04J2203/0058 ,  Y02D30/20

    摘要： An optical network includes multiple source, cross connect, and destination nodes. A traffic demand matrix is constructed for each possible pair of combinations of the source nodes and the destination nodes. A first energy reduction metric is determined for creating the bypass between the source node and any XC node based on the traffic demand matrix, and a second energy reduction metric is determined for creating the bypass between any XC node and the destination node using the traffic demand matrix. Then, a bypass that terminates at one of the XC nodes that has a largest energy reduction metric is created.

    摘要翻译： 光网络包括多个源，交叉连接和目的节点。 为源节点和目的节点的每个可能的组合组合构建业务需求矩阵。 确定用于基于业务需求矩阵在源节点和任何XC节点之间创建旁路的第一能量减少度量，并且确定用于使用业务需求在任何XC节点和目的地节点之间创建旁路的第二能量减少度量 矩阵。 然后，创建一个在具有最大能量减少度量的XC节点之一终止的旁路。

    Electrical domain compensation of optical dispersion in an optical communications system
    6.
    发明授权
    Electrical domain compensation of optical dispersion in an optical communications system 有权
    光通信系统中光散射的电域补偿

    公开(公告)号：US07382984B2

    公开(公告)日：2008-06-03

    申请号：US10262944

    申请日：2002-10-03

    申请人： John McNicol ,  Kieran Parsons ,  Leo Strawczynski ,  Kim B. Roberts

    发明人： John McNicol ,  Kieran Parsons ,  Leo Strawczynski ,  Kim B. Roberts

    IPC分类号： H04B10/12 ,  H04B10/00 ,  H04B10/04

    CPC分类号： H04B10/07951 ,  H04B10/07953 ,  H04B10/25137 ,  H04B10/505 ,  H04B10/50597 ,  H04B10/508 ,  H04B10/6161

    摘要： Optical dispersion imposed on a communications signal conveyed through an optical communications system is compensated by modulating the communications signal in the electrical domain. A compensation function is determined that substantially mitigates the chromatic dispersion. The communications signal is then modulated in the electrical domain using the compensation function. Electrical domain compensation can be implemented in either the transmitter or the receiver end of the communications system. In preferred embodiments, compensation is implemented in the transmitter, using a look-up-table and digital-to-analog converter to generate an electrical predistorted signal. The electrical predistorted signal is then used to modulate an optical source to generate a corresponding predistorted optical signal for transmission through the optical communications system.

    摘要翻译： 施加在通过光通信系统传送的通信信号上的光色散通过调制电域中的通信信号来补偿。 确定基本上减轻色散的补偿功能。 然后使用补偿功能在电域中调制通信信号。 可以在通信系统的发射机或接收机端实现电域补偿。 在优选实施例中，使用查找表和数模转换器来在发射机中实现补偿以产生电预失真信号。 然后，电预失真信号用于调制光源以产生用于通过光通信系统传输的相应的预失真光信号。

    Iterative carrier phase compensation in coherent fiber optic receivers
    7.
    发明授权
    Iterative carrier phase compensation in coherent fiber optic receivers 失效
    相干光纤接收机的迭代载波相位补偿

    公开(公告)号：US08498544B2

    公开(公告)日：2013-07-30

    申请号：US13024769

    申请日：2011-02-10

    申请人： Chunjie Duan ,  Kieran Parsons ,  Philip V. Orlik

    发明人： Chunjie Duan ,  Kieran Parsons ,  Philip V. Orlik

    IPC分类号： H04B10/00

    CPC分类号： G06F7/5057 ,  G06F7/5443 ,  H03M13/1111 ,  H03M13/658 ,  H04B10/6165 ,  H04L9/3218 ,  H04L2209/46 ,  H04L2209/50

    摘要： A method and an optical receiver compensates for an error in a phase of an optical signal in a receiver. The signal includes blocks of symbols in a sequence. Each block is decoded based on a partially phase compensated symbols, and an average phase error for the block is estimated. Forward phase compensation and backward phase compensation is performed on the block based on the average phase error, and the decoding, estimating, performing is iterated until a termination condition is satisfied to produce a phase compensated block.

    摘要翻译： 一种方法和光学接收机补偿接收机中光信号的相位中的误差。 信号包括序列中的符号块。 基于部分相位补偿的符号对每个块进行解码，并且估计块的平均相位误差。 基于平均相位误差对块进行正向相位补偿和反相补偿，迭代解码，估计执行直到满足终止条件以产生相位补偿块。

    Optical dispersion compesnation in the electrical domain in an optical communications system
    8.
    发明申请
    Optical dispersion compesnation in the electrical domain in an optical communications system 有权
    在光通信系统中的电域中的光散射合成

    公开(公告)号：US20060078336A1

    公开(公告)日：2006-04-13

    申请号：US10531314

    申请日：2003-07-11

    申请人： John McNicol ,  Kieran Parsons ,  Leo Strawczynski ,  Kim Roberts ,  Maurice O'Sullivan

    发明人： John McNicol ,  Kieran Parsons ,  Leo Strawczynski ,  Kim Roberts ,  Maurice O'Sullivan

    IPC分类号： H04B10/12

    CPC分类号： H04B10/07951 ,  H04B10/07953 ,  H04B10/25137 ,  H04B10/505 ,  H04B10/50597 ,  H04B10/508 ,  H04B10/6161

    摘要： Optical dispersion imposed on a communications signal conveyed through an optical communications system is compensated by modulating the communications signal in the electrical domain. A compensation function is determined that substantially mitigates the chromatic dispersion. The communications signal is then modulated in the electrical domain using the compensation function. In preferred embodiments, compensation is implemented in the transmitter, using a look-up-table and digital-to-analog converter to generate an electrical predistorted signal. The electrical predistorted signal is then used to modulate an optical source to generate a corresponding predistorted optical signal for transmission through the optical communications system.

    摘要翻译： 施加在通过光通信系统传送的通信信号上的光色散通过调制电域中的通信信号来补偿。 确定基本上减轻色散的补偿功能。 然后使用补偿功能在电域中调制通信信号。 在优选实施例中，使用查找表和数模转换器来在发射机中实现补偿以产生电预失真信号。 然后，电预失真信号用于调制光源以产生用于通过光通信系统传输的相应的预失真光信号。